From conrad at Princeton.EDU Sun May 3 18:47:42 2015 From: conrad at Princeton.EDU (Conrad L. Silvestre) Date: Sun, 3 May 2015 22:47:42 +0000 Subject: [labnetwork] KINO Contact Angle Goniometers Message-ID: <942F7C9560506B479A2B7D73DB9F98D25B06AC33@CSGMBX205W.pu.win.princeton.edu> Does anyone have any experience with KINO Contact Angle Goniometers? This is a Chinese company. I am interested in instrument quality, instrument reliability, technical support quality, technical support availability, and spare parts availability. Conrad Silvestre Department of Electrical Engineering C430 EQuad, CN-5263 Princeton University Princeton, New Jersey 08544-5263 Office: 609-258-6236 FAX: 609-258-6279 Business Cell: 609-356-8825 -------------- next part -------------- An HTML attachment was scrubbed... URL: From mfcchung at ust.hk Sun May 3 23:27:16 2015 From: mfcchung at ust.hk (CHUNG Wing Leong) Date: Mon, 4 May 2015 11:27:16 +0800 (HKT) Subject: [labnetwork] technical support of sputtering system In-Reply-To: <19a901d0455a$7e666f80$7b334e80$@gmail.com> References: <19a901d0455a$7e666f80$7b334e80$@gmail.com> Message-ID: <51566.143.89.145.189.1430710036.squirrel@sqmail.ust.hk> Hello All, I am looking for technical support of Canon Anelva ILC-1051 sputtering system, do you have any idea or suggestion? Regards Jeff From diadiuk at mit.edu Mon May 4 13:57:48 2015 From: diadiuk at mit.edu (Vicky Diadiuk) Date: Mon, 4 May 2015 13:57:48 -0400 Subject: [labnetwork] Perovskites? Message-ID: Hi, Pb-based perovskites seem to be receiving lots of attention recently. If anyone is working w/them in the fab, do you have separate systems for etching them? If not, how do you clean the chambers afterwards? Thx, Vicky From Greg.Owen at jacobs.com Fri May 8 13:28:38 2015 From: Greg.Owen at jacobs.com (Owen, Greg) Date: Fri, 8 May 2015 10:28:38 -0700 Subject: [labnetwork] Liquid Nitrogen Distribution Piping Message-ID: We are working on a new installation from a bulk tank for a liquid Nitrogen. There are several types of LN2 distribution piping available, Foam Insulated, Dynamic Vacuum Insulated and Static Vacuum Insulated. I would appreciate input on the your experience with any of these systems related to the following: Type of LN2 distribution piping used Years of service for your LN2 piping system Ease of use Operational Issues System failures Length of LN2 piping system Recommendations based on your experience Thanks, Greg Office: 503.624.3230 | Cell: 503.819.5303 | Fax: 503.624.3066 | greg.owen at jacobs.com ________________________________ NOTICE - This communication may contain confidential and privileged information that is for the sole use of the intended recipient. Any viewing, copying or distribution of, or reliance on this message by unintended recipients is strictly prohibited. If you have received this message in error, please notify us immediately by replying to the message and deleting it from your computer. -------------- next part -------------- An HTML attachment was scrubbed... URL: From Loik.gence at cetuc.puc-rio.br Tue May 12 14:44:12 2015 From: Loik.gence at cetuc.puc-rio.br (=?windows-1252?Q?Lo=EFk_GENCE?=) Date: Tue, 12 May 2015 15:44:12 -0300 Subject: [labnetwork] Flooring - ISO 5/6 In-Reply-To: References: Message-ID: <555249FC.50706@cetuc.puc-rio.br> Dear All, I would like to get some suggestions about of flooring for a small cleanroom ISO 5/6. We are thinking about a dissipative epoxi flooring with copper tape for grounding. Do you have some experience with this kind of flooring. Is there an alternative to epoxi? Thank you for your comments. Regards, Lo?k -- __________________________________________ Dr. Lo?k Gence PUC-RIO/CETUC-LABSEM End Rua Marques de S?o Vicente, 225-Gavea CEP:22451-900 Rio de Janeiro, RJ-Brasil (Telefone) +55 (021) 3527-2193 (Mobile) +55 (021) 99156-5558 loik.gence at cetuc.puc-rio.br __________________________________________ From Jack.Paul at hdrinc.com Wed May 13 20:12:18 2015 From: Jack.Paul at hdrinc.com (Paul, Jack) Date: Thu, 14 May 2015 00:12:18 +0000 Subject: [labnetwork] Flooring - ISO 5/6 In-Reply-To: <555249FC.50706@cetuc.puc-rio.br> References: <555249FC.50706@cetuc.puc-rio.br> Message-ID: Greetings Lo?k, May I suggest a seamless resilient floor material (sheet vinyl with welded seams) in lieu of epoxy? There are various sheet vinyl products available that can be installed less expensively than epoxy, and even more important, more easily repaired in an operational cleanroom environment. One product we have used successfully is Medintech, by Armstrong, which is a homogeneous sheet vinyl material that can be installed with heat-welded seams and has good chemical resistance as well as static conductivity. There are other competing products that work just as well (this is by no means a sales pitch for Armstrong!). Hope this helps. Best regards, Jack -----Original Message----- From: labnetwork-bounces at mtl.mit.edu [mailto:labnetwork-bounces at mtl.mit.edu] On Behalf Of Lo?k GENCE Sent: Tuesday, May 12, 2015 11:44 AM To: labnetwork at mtl.mit.edu Subject: [labnetwork] Flooring - ISO 5/6 Dear All, I would like to get some suggestions about of flooring for a small cleanroom ISO 5/6. We are thinking about a dissipative epoxi flooring with copper tape for grounding. Do you have some experience with this kind of flooring. Is there an alternative to epoxi? Thank you for your comments. Regards, Lo?k -- __________________________________________ Dr. Lo?k Gence PUC-RIO/CETUC-LABSEM End Rua Marques de S?o Vicente, 225-Gavea CEP:22451-900 Rio de Janeiro, RJ-Brasil (Telefone) +55 (021) 3527-2193 (Mobile) +55 (021) 99156-5558 loik.gence at cetuc.puc-rio.br __________________________________________ _______________________________________________ labnetwork mailing list labnetwork at mtl.mit.edu https://www-mtl.mit.edu/mailman/listinfo.cgi/labnetwork -------------- next part -------------- An HTML attachment was scrubbed... URL: From bob at eecs.berkeley.edu Thu May 14 11:04:33 2015 From: bob at eecs.berkeley.edu (Robert M. HAMILTON) Date: Thu, 14 May 2015 08:04:33 -0700 Subject: [labnetwork] Flooring - ISO 5/6 In-Reply-To: References: <555249FC.50706@cetuc.puc-rio.br> Message-ID: Fab Colleagues, I'd like to broaden the discussion of conductive floors and electrostatic discharge (ESD). I have trouble understanding how it is dealt with. At the outset, I have little experience with ESD as our lab is near the Pacific Ocean with moderate climate. ESD is less an issue for us than in the drier, colder parts of the US. However, given the climate controls in newer fabs it would seem ESD is less and issue within a fab than in the environs. To use the lab our members and staff suit up with boots that are dielectric, shoe covers, gowns, caps and then nitrile gloves (we are aware some cleanroom garb is available from conductive materials). Noting this the gloves seem to be a "fly to the ointment" for ESD control. Example. Recently a lab member asked for replacement of ESD wrist straps at our wire bonders. My question is how much protection from ESD is had by a conductive bracelet if the ultimate garb is a pair of dielectric gloves? It seems gloves provide a barrier which acting for and against and ESD strategy. Although oblique to this discussion I'd like to mention we also have a robust ground-grid consisting of a flat 2" copper strap to provide excellent grounds for equipment, particularly rf enabled systems. Of note, in a long history of semiconductor research we have not encountered device failures from ESD in our evolving lab environments. Having said this, the University of California Marvell NanoLab was built with conductive vinyl floors. Regards, Bob Hamilton PS I'll digress a bit and share an story. The UC's anthropology library came to us some years back to find a way to neutralize the electrostatic force that bound ancient Egyptian papyrus to the plastic envelopes they were stored in. The papyrus was bound so tightly it tore before breaking loose. We introduced them to Ion Systems, specialist in ESD room control. Ion Systems came up with an effective solution to their problem. Robert Hamilton University of CA, Berkeley Marvell NanoLab Equipment Manager Rm 520 Sutardja Dai Hall, MC 1754 Berkeley, CA 94720 Phone 510-809-8618 (desk - preferred) Mobile 510-325-7557 (my personal mobile) E-mail preferred: bob at eecs.berkeley.edu http://nanolab.berkeley.edu/ On Wed, May 13, 2015 at 5:12 PM, Paul, Jack wrote: > Greetings Lo?k, > May I suggest a seamless resilient floor material (sheet vinyl with welded > seams) in lieu of epoxy? > > There are various sheet vinyl products available that can be installed > less expensively than epoxy, and even more important, more easily repaired > in an operational cleanroom environment. > > One product we have used successfully is Medintech, by Armstrong, which is > a homogeneous sheet vinyl material that can be installed with heat-welded > seams and has good chemical resistance as well as static conductivity. > There are other competing products that work just as well (this is by no > means a sales pitch for Armstrong!). > > Hope this helps. > > Best regards, > Jack > > -----Original Message----- > From: labnetwork-bounces at mtl.mit.edu [ > mailto:labnetwork-bounces at mtl.mit.edu ] > On Behalf Of Lo?k GENCE > Sent: Tuesday, May 12, 2015 11:44 AM > To: labnetwork at mtl.mit.edu > Subject: [labnetwork] Flooring - ISO 5/6 > > > Dear All, > > I would like to get some suggestions about of flooring for a small > cleanroom ISO 5/6. > We are thinking about a dissipative epoxi flooring with copper tape for > grounding. > > Do you have some experience with this kind of flooring. Is there an > alternative to epoxi? > > Thank you for your comments. > > > Regards, > Lo?k > > > > -- > __________________________________________ > Dr. Lo?k Gence > > PUC-RIO/CETUC-LABSEM > > End Rua Marques de S?o Vicente, 225-Gavea > CEP:22451-900 Rio de Janeiro, RJ-Brasil > > (Telefone) +55 (021) 3527-2193 > > (Mobile) +55 (021) 99156-5558 > > loik.gence at cetuc.puc-rio.br > __________________________________________ > > > _______________________________________________ > labnetwork mailing list > labnetwork at mtl.mit.edu > https://www-mtl.mit.edu/mailman/listinfo.cgi/labnetwork > > > _______________________________________________ > labnetwork mailing list > labnetwork at mtl.mit.edu > https://www-mtl.mit.edu/mailman/listinfo.cgi/labnetwork > > -------------- next part -------------- An HTML attachment was scrubbed... URL: From rmorrison at draper.com Thu May 14 12:14:19 2015 From: rmorrison at draper.com (Morrison, Richard H., Jr.) Date: Thu, 14 May 2015 16:14:19 +0000 Subject: [labnetwork] Flooring - ISO 5/6 In-Reply-To: References: <555249FC.50706@cetuc.puc-rio.br> Message-ID: Hi All, At Draper laboratory we use ESD floor (vinyl) with Cu ground straps, tested at install. Our coveralls, hoods, boots are conductive material and our gloves are ESD Nitrile safe. We use wrist straps that are tested at the work area every time a person uses the tool, strap goes on either the fabric cuff or glove. All of our workstations where we handle ESD material have tested conductive laminate or mats with ground straps. All work stations are tested yearly. This work is done in an ISO-6 room (Class 1000). RH control is 45% +-3% but you still need ESD control as wafers tend to charge up during processing. All our cassettes and wafer boxes are stat-pro 100 black in color. The other thing to watch out for is electrical test probes; you must always ground all probes before testing your device. Some test equipment does not ground the output pins and coax lines can build up a large charge and zap your device. The thing about ESD damage is that you cannot always see it and it is then a latent defect waiting to eat your lunch later. Hopes this helps Rick Draper Laboratory Principal Member of the Technical Staff Group Leader Microfabrication Operations 555 Technology Square Cambridge Ma, 02139-3563 www.draper.com rmorrison at draper.com W 617-258-3420 C 508-930-3461 From: labnetwork-bounces at mtl.mit.edu [mailto:labnetwork-bounces at mtl.mit.edu] On Behalf Of Robert M. HAMILTON Sent: Thursday, May 14, 2015 11:05 AM To: Paul, Jack Cc: labnetwork at mtl.mit.edu Subject: Re: [labnetwork] Flooring - ISO 5/6 Fab Colleagues, I'd like to broaden the discussion of conductive floors and electrostatic discharge (ESD). I have trouble understanding how it is dealt with. At the outset, I have little experience with ESD as our lab is near the Pacific Ocean with moderate climate. ESD is less an issue for us than in the drier, colder parts of the US. However, given the climate controls in newer fabs it would seem ESD is less and issue within a fab than in the environs. To use the lab our members and staff suit up with boots that are dielectric, shoe covers, gowns, caps and then nitrile gloves (we are aware some cleanroom garb is available from conductive materials). Noting this the gloves seem to be a "fly to the ointment" for ESD control. Example. Recently a lab member asked for replacement of ESD wrist straps at our wire bonders. My question is how much protection from ESD is had by a conductive bracelet if the ultimate garb is a pair of dielectric gloves? It seems gloves provide a barrier which acting for and against and ESD strategy. Although oblique to this discussion I'd like to mention we also have a robust ground-grid consisting of a flat 2" copper strap to provide excellent grounds for equipment, particularly rf enabled systems. Of note, in a long history of semiconductor research we have not encountered device failures from ESD in our evolving lab environments. Having said this, the University of California Marvell NanoLab was built with conductive vinyl floors. Regards, Bob Hamilton PS I'll digress a bit and share an story. The UC's anthropology library came to us some years back to find a way to neutralize the electrostatic force that bound ancient Egyptian papyrus to the plastic envelopes they were stored in. The papyrus was bound so tightly it tore before breaking loose. We introduced them to Ion Systems, specialist in ESD room control. Ion Systems came up with an effective solution to their problem. Robert Hamilton University of CA, Berkeley Marvell NanoLab Equipment Manager Rm 520 Sutardja Dai Hall, MC 1754 Berkeley, CA 94720 Phone 510-809-8618 (desk - preferred) Mobile 510-325-7557 (my personal mobile) E-mail preferred: bob at eecs.berkeley.edu http://nanolab.berkeley.edu/ On Wed, May 13, 2015 at 5:12 PM, Paul, Jack > wrote: Greetings Lo?k, May I suggest a seamless resilient floor material (sheet vinyl with welded seams) in lieu of epoxy? There are various sheet vinyl products available that can be installed less expensively than epoxy, and even more important, more easily repaired in an operational cleanroom environment. One product we have used successfully is Medintech, by Armstrong, which is a homogeneous sheet vinyl material that can be installed with heat-welded seams and has good chemical resistance as well as static conductivity. There are other competing products that work just as well (this is by no means a sales pitch for Armstrong!). Hope this helps. Best regards, Jack -----Original Message----- From: labnetwork-bounces at mtl.mit.edu [mailto:labnetwork-bounces at mtl.mit.edu] On Behalf Of Lo?k GENCE Sent: Tuesday, May 12, 2015 11:44 AM To: labnetwork at mtl.mit.edu Subject: [labnetwork] Flooring - ISO 5/6 Dear All, I would like to get some suggestions about of flooring for a small cleanroom ISO 5/6. We are thinking about a dissipative epoxi flooring with copper tape for grounding. Do you have some experience with this kind of flooring. Is there an alternative to epoxi? Thank you for your comments. Regards, Lo?k -- __________________________________________ Dr. Lo?k Gence PUC-RIO/CETUC-LABSEM End Rua Marques de S?o Vicente, 225-Gavea CEP:22451-900 Rio de Janeiro, RJ-Brasil (Telefone) +55 (021) 3527-2193 (Mobile) +55 (021) 99156-5558 loik.gence at cetuc.puc-rio.br __________________________________________ _______________________________________________ labnetwork mailing list labnetwork at mtl.mit.edu https://www-mtl.mit.edu/mailman/listinfo.cgi/labnetwork _______________________________________________ labnetwork mailing list labnetwork at mtl.mit.edu https://www-mtl.mit.edu/mailman/listinfo.cgi/labnetwork ________________________________ Notice: This email and any attachments may contain proprietary (Draper non-public) and/or export-controlled information of Draper Laboratory. If you are not the intended recipient of this email, please immediately notify the sender by replying to this email and immediately destroy all copies of this email. ________________________________ -------------- next part -------------- An HTML attachment was scrubbed... URL: From matthieu.nannini at mcgill.ca Thu May 14 13:02:47 2015 From: matthieu.nannini at mcgill.ca (Matthieu Nannini, Dr.) Date: Thu, 14 May 2015 17:02:47 +0000 Subject: [labnetwork] Automated Emergency shutoff valve Message-ID: <405ACE07-D5DE-43B6-A81C-9D00C36B62DF@mcgill.ca> Collegues, Our facilites dept. is reviewing our operations before a ? used-to-be-not-so-major ? renovation. They are flirting with this idea of installing Emergency Gas Cylinder Valve shutoff like sold by the following company: http://www.halogenvalve.com/ These valves would be hooked up to our TGMS. Any of you has such an installation ? Anyone could comment ? Thanks ----------------------------------- Matthieu Nannini McGill Nanotools Microfab Manager t: 514 398 3310 c: 514 758 3311 f: 514 398 8434 http://mnm.physics.mcgill.ca/ ------------------------------------ -------------- next part -------------- An HTML attachment was scrubbed... URL: From julia.aebersold at louisville.edu Thu May 14 16:04:42 2015 From: julia.aebersold at louisville.edu (julia.aebersold at louisville.edu) Date: Thu, 14 May 2015 20:04:42 +0000 Subject: [labnetwork] Automated Emergency shutoff valve In-Reply-To: <405ACE07-D5DE-43B6-A81C-9D00C36B62DF@mcgill.ca> References: <405ACE07-D5DE-43B6-A81C-9D00C36B62DF@mcgill.ca> Message-ID: Our gas lines are shut off by the gas cabinets and satellite boxes, which are controlled by environmental monitoring and the TGM system. We don't have shutoff valves directly on the cylinders with the exception of Silane. Cheers! Julia Aebersold, Ph.D. Cleanroom Manager Micro/Nano Technology Center University of Louisville Shumaker Research Building, Room 233 2210 South Brook Street Louisville, KY 40292 502-852-1572 http://louisville.edu/micronano/ From: labnetwork-bounces at mtl.mit.edu [mailto:labnetwork-bounces at mtl.mit.edu] On Behalf Of Matthieu Nannini, Dr. Sent: Thursday, May 14, 2015 1:03 PM To: Labnetwork Subject: [labnetwork] Automated Emergency shutoff valve Collegues, Our facilites dept. is reviewing our operations before a < used-to-be-not-so-major > renovation. They are flirting with this idea of installing Emergency Gas Cylinder Valve shutoff like sold by the following company: http://www.halogenvalve.com/ These valves would be hooked up to our TGMS. Any of you has such an installation ? Anyone could comment ? Thanks ----------------------------------- Matthieu Nannini McGill Nanotools Microfab Manager t: 514 398 3310 c: 514 758 3311 f: 514 398 8434 http://mnm.physics.mcgill.ca/ ------------------------------------ -------------- next part -------------- An HTML attachment was scrubbed... URL: From schweig at umich.edu Thu May 14 16:14:44 2015 From: schweig at umich.edu (Dennis Schweiger) Date: Thu, 14 May 2015 16:14:44 -0400 Subject: [labnetwork] Automated Emergency shutoff valve Message-ID: Matthieu, are you using gas cabinets to house your HPM cylinders? If so, why wouldn't you use the shutoffs in the cabinets to perform this functionality? DennisSchweiger University of Michigan/LNF 734.647.2055 Ofc "People can be divided into 3 groups - those that make things happen, those that watch things happen, and those that wonder what happened." Within which group do you belong? On Thu, May 14, 2015 at 1:02 PM, Matthieu Nannini, Dr. < matthieu.nannini at mcgill.ca> wrote: > Collegues, > > Our facilites dept. is reviewing our operations before a > ? used-to-be-not-so-major ? renovation. They are flirting with this idea of > installing Emergency Gas Cylinder Valve shutoff like sold by the following > company: http://www.halogenvalve.com/ > These valves would be hooked up to our TGMS. > > Any of you has such an installation ? Anyone could comment ? > > Thanks > > ----------------------------------- > Matthieu Nannini > McGill Nanotools Microfab > Manager > t: 514 398 3310 > c: 514 758 3311 > f: 514 398 8434 > http://mnm.physics.mcgill.ca/ > ------------------------------------ > > > _______________________________________________ > labnetwork mailing list > labnetwork at mtl.mit.edu > https://www-mtl.mit.edu/mailman/listinfo.cgi/labnetwork > > -------------- next part -------------- An HTML attachment was scrubbed... URL: From matthieu.nannini at mcgill.ca Thu May 14 16:26:02 2015 From: matthieu.nannini at mcgill.ca (Matthieu Nannini, Dr.) Date: Thu, 14 May 2015 20:26:02 +0000 Subject: [labnetwork] Automated Emergency shutoff valve In-Reply-To: References: Message-ID: Dennis, Yes. All are in exhausted gas cabinet. When I presented the safety mechanism to the project manager here, showing him the shutoff valve in the pigtail just before the panel, he mentioned that there was still a weak point between this valve and the actual cylinder rotary valve itself. If a leak occurs at the rotary valve or the CGA/DISS connection or at the pigtail nothing can stop it. Hence the shutoff valve on the cylinder rotary valve idea from the project manager. Matthieu Le 2015-05-14 ? 16:14, Dennis Schweiger > a ?crit : Matthieu, are you using gas cabinets to house your HPM cylinders? If so, why wouldn't you use the shutoffs in the cabinets to perform this functionality? DennisSchweiger University of Michigan/LNF 734.647.2055 Ofc "People can be divided into 3 groups - those that make things happen, those that watch things happen, and those that wonder what happened." Within which group do you belong? On Thu, May 14, 2015 at 1:02 PM, Matthieu Nannini, Dr. > wrote: Collegues, Our facilites dept. is reviewing our operations before a ? used-to-be-not-so-major ? renovation. They are flirting with this idea of installing Emergency Gas Cylinder Valve shutoff like sold by the following company: http://www.halogenvalve.com/ These valves would be hooked up to our TGMS. Any of you has such an installation ? Anyone could comment ? Thanks ----------------------------------- Matthieu Nannini McGill Nanotools Microfab Manager t: 514 398 3310 c: 514 758 3311 f: 514 398 8434 http://mnm.physics.mcgill.ca/ ------------------------------------ _______________________________________________ labnetwork mailing list labnetwork at mtl.mit.edu https://www-mtl.mit.edu/mailman/listinfo.cgi/labnetwork -------------- next part -------------- An HTML attachment was scrubbed... URL: From schweig at umich.edu Thu May 14 16:37:17 2015 From: schweig at umich.edu (Dennis Schweiger) Date: Thu, 14 May 2015 16:37:17 -0400 Subject: [labnetwork] Automated Emergency shutoff valve In-Reply-To: References: Message-ID: So, your project manager wants to put this rotary valve operator in the cabinet, as a means to shut off the cylinder? We had those in our early Air Products cabinets, they were problematic, and we eventually just defeated them. None of our cylinder cabinets have them now. It would make more sense to go to an air operated DISS cylinder valve (see page 2 in the attachment), and have the DISS portion prepped for a restrictive flow orifice. In addition to this, I would look at the gas usage, and "right size" the cylinder volume of gas so that your cylinder change out cadence is about 12-18 months. That might mean that you'd need to have a cylinder short filled. This reduces your exposure risk in the event there is some type of catastrophic failure in your delivery system. There is no way I'd add another complex mechanical system (rotating cylinder shut off) into our HPM cabinets, when there are way better solutions out there. Dennis 734.647.2055 Ofc "People can be divided into 3 groups - those that make things happen, those that watch things happen, and those that wonder what happened." Within which group do you belong? On Thu, May 14, 2015 at 4:26 PM, Matthieu Nannini, Dr. < matthieu.nannini at mcgill.ca> wrote: > Dennis, > > Yes. All are in exhausted gas cabinet. When I presented the safety > mechanism to the project manager here, showing him the shutoff valve in the > pigtail just before the panel, he mentioned that there was still a weak > point between this valve and the actual cylinder rotary valve itself. If a > leak occurs at the rotary valve or the CGA/DISS connection or at the > pigtail nothing can stop it. Hence the shutoff valve on the cylinder rotary > valve idea from the project manager. > > Matthieu > > Le 2015-05-14 ? 16:14, Dennis Schweiger a ?crit : > > Matthieu, > > are you using gas cabinets to house your HPM cylinders? If so, why > wouldn't you use the shutoffs in the cabinets to perform this functionality? > > DennisSchweiger > University of Michigan/LNF > > 734.647.2055 Ofc > > "People can be divided into 3 groups - those that make things happen, > those that watch things happen, and those that wonder what happened." > Within which group do you belong? > > On Thu, May 14, 2015 at 1:02 PM, Matthieu Nannini, Dr. < > matthieu.nannini at mcgill.ca> wrote: > >> Collegues, >> >> Our facilites dept. is reviewing our operations before a >> ? used-to-be-not-so-major ? renovation. They are flirting with this idea of >> installing Emergency Gas Cylinder Valve shutoff like sold by the following >> company: http://www.halogenvalve.com/ >> These valves would be hooked up to our TGMS. >> >> Any of you has such an installation ? Anyone could comment ? >> >> Thanks >> >> ----------------------------------- >> Matthieu Nannini >> McGill Nanotools Microfab >> Manager >> t: 514 398 3310 >> c: 514 758 3311 >> f: 514 398 8434 >> http://mnm.physics.mcgill.ca/ >> ------------------------------------ >> >> >> _______________________________________________ >> labnetwork mailing list >> labnetwork at mtl.mit.edu >> https://www-mtl.mit.edu/mailman/listinfo.cgi/labnetwork >> >> > > -------------- next part -------------- An HTML attachment was scrubbed... URL: -------------- next part -------------- A non-text attachment was scrubbed... Name: electronics_specialty_gases59892.pdf Type: application/pdf Size: 770488 bytes Desc: not available URL: From nclay at upenn.edu Thu May 14 16:45:26 2015 From: nclay at upenn.edu (Noah Clay) Date: Thu, 14 May 2015 16:45:26 -0400 Subject: [labnetwork] Flooring - ISO 5/6 In-Reply-To: References: <555249FC.50706@cetuc.puc-rio.br> Message-ID: <3F4CE8E0-E57A-43FB-BCF1-5092ADB94C19@upenn.edu> Agreed that most clean rooms control humidity and temp to similar levels, irrespective of geographic location. In industry, when handling chips, we used ESD lotion under nitrile gloves when working with devices for ESD event avoidance. We also had conductive black gloves and conductive finger cots (lightly conductive nitrile?) black finger tip covers. Ionizers were in the ceilings or in the equipment in two out of the four production fabs I worked in; these two fabs had product lines that were highly susceptible to discharge damage - others fabs had devices that stand a few hundred volts. Often times, devices would not fail from a catastrophic arcing event, but they would degrade more rapidly from latent failures induced by some ESD damage. In my experience, the first key to avoiding an ESD event is slow discharging of the charged device. Frankly, it can be better to pick up a device with plastic tweezers if it's charged rather than picking it up with metal tweezers...which could quickly discharge it. The second key is that insulating materials need to be discharged with an ionizer...they can't be grounded. My two cents, FWIW, Noah Clay University of Pennsylvania Sent from my iPhone > On May 14, 2015, at 11:04, Robert M. HAMILTON wrote: > > Fab Colleagues, > > I'd like to broaden the discussion of conductive floors and electrostatic discharge (ESD). I have trouble understanding how it is dealt with. At the outset, I have little experience with ESD as our lab is near the Pacific Ocean with moderate climate. ESD is less an issue for us than in the drier, colder parts of the US. However, given the climate controls in newer fabs it would seem ESD is less and issue within a fab than in the environs. > > To use the lab our members and staff suit up with boots that are dielectric, shoe covers, gowns, caps and then nitrile gloves (we are aware some cleanroom garb is available from conductive materials). Noting this the gloves seem to be a "fly to the ointment" for ESD control. > > Example. Recently a lab member asked for replacement of ESD wrist straps at our wire bonders. My question is how much protection from ESD is had by a conductive bracelet if the ultimate garb is a pair of dielectric gloves? It seems gloves provide a barrier which acting for and against and ESD strategy. > > Although oblique to this discussion I'd like to mention we also have a robust ground-grid consisting of a flat 2" copper strap to provide excellent grounds for equipment, particularly rf enabled systems. > > Of note, in a long history of semiconductor research we have not encountered device failures from ESD in our evolving lab environments. Having said this, the University of California Marvell NanoLab was built with conductive vinyl floors. > > Regards, > Bob Hamilton > > PS I'll digress a bit and share an story. The UC's anthropology library came to us some years back to find a way to neutralize the electrostatic force that bound ancient Egyptian papyrus to the plastic envelopes they were stored in. The papyrus was bound so tightly it tore before breaking loose. We introduced them to Ion Systems, specialist in ESD room control. Ion Systems came up with an effective solution to their problem. > > > > Robert Hamilton > University of CA, Berkeley > Marvell NanoLab Equipment Manager > Rm 520 Sutardja Dai Hall, MC 1754 > Berkeley, CA 94720 > Phone 510-809-8618 (desk - preferred) > Mobile 510-325-7557 (my personal mobile) > E-mail preferred: bob at eecs.berkeley.edu > http://nanolab.berkeley.edu/ > > > >> On Wed, May 13, 2015 at 5:12 PM, Paul, Jack wrote: >> Greetings Lo?k, >> May I suggest a seamless resilient floor material (sheet vinyl with welded seams) in lieu of epoxy? >> >> There are various sheet vinyl products available that can be installed less expensively than epoxy, and even more important, more easily repaired in an operational cleanroom environment. >> >> One product we have used successfully is Medintech, by Armstrong, which is a homogeneous sheet vinyl material that can be installed with heat-welded seams and has good chemical resistance as well as static conductivity. There are other competing products that work just as well (this is by no means a sales pitch for Armstrong!). >> >> Hope this helps. >> >> Best regards, >> Jack >> >> -----Original Message----- >> From: labnetwork-bounces at mtl.mit.edu [mailto:labnetwork-bounces at mtl.mit.edu] On Behalf Of Lo?k GENCE >> Sent: Tuesday, May 12, 2015 11:44 AM >> To: labnetwork at mtl.mit.edu >> Subject: [labnetwork] Flooring - ISO 5/6 >> >> >> Dear All, >> >> I would like to get some suggestions about of flooring for a small cleanroom ISO 5/6. >> We are thinking about a dissipative epoxi flooring with copper tape for grounding. >> >> Do you have some experience with this kind of flooring. Is there an alternative to epoxi? >> >> Thank you for your comments. >> >> >> Regards, >> Lo?k >> >> >> >> -- >> __________________________________________ >> Dr. Lo?k Gence >> >> PUC-RIO/CETUC-LABSEM >> >> End Rua Marques de S?o Vicente, 225-Gavea >> CEP:22451-900 Rio de Janeiro, RJ-Brasil >> >> (Telefone) +55 (021) 3527-2193 >> >> (Mobile) +55 (021) 99156-5558 >> >> loik.gence at cetuc.puc-rio.br >> __________________________________________ >> >> >> _______________________________________________ >> labnetwork mailing list >> labnetwork at mtl.mit.edu >> https://www-mtl.mit.edu/mailman/listinfo.cgi/labnetwork >> >> >> _______________________________________________ >> labnetwork mailing list >> labnetwork at mtl.mit.edu >> https://www-mtl.mit.edu/mailman/listinfo.cgi/labnetwork > > _______________________________________________ > labnetwork mailing list > labnetwork at mtl.mit.edu > https://www-mtl.mit.edu/mailman/listinfo.cgi/labnetwork -------------- next part -------------- An HTML attachment was scrubbed... URL: From Loik.gence at cetuc.puc-rio.br Thu May 14 17:50:19 2015 From: Loik.gence at cetuc.puc-rio.br (=?windows-1252?Q?Lo=EFk_GENCE?=) Date: Thu, 14 May 2015 18:50:19 -0300 Subject: [labnetwork] Flooring - ISO 5/6 In-Reply-To: References: <555249FC.50706@cetuc.puc-rio.br> Message-ID: <5555189B.5070504@cetuc.puc-rio.br> Dear All, I thank you for your comments. It helps. The point about maintenance is important for us. Epoxi would require pausing a whole fab for repairing only a few m2 of flooring... bad point. It is true that, here, outside, humidity is very, very, very... high. but we dimensioned the airconditionning to reach about 50 % relative humidity inside of the cleanroom. I agree that without taking care of the whole chain (operators, shoes, tweezer,...), ESD flooring is not efficient, even useless. But, personally, I already killed "burned" a few electrodes of MEMS devices just placing the substrate with my tweezer under the microscope in a non ESD cleanroom... I don't think ESD flooring is mandatory for a small cleanroom like ours, but as the price difference is insignificant (exception for Epoxi ESD ) It is worth to choose an ESD flooring, as it should save at least a few devices from sudden death (always the best ones)! I thank you again for your precious time. Best Regards, Lo?k. Le 14/05/2015 13:14, Morrison, Richard H., Jr. a ?crit : > > Hi All, > > At Draper laboratory we use ESD floor (vinyl) with Cu ground straps, > tested at install. > > Our coveralls, hoods, boots are conductive material and our gloves are > ESD Nitrile safe. > > We use wrist straps that are tested at the work area every time a > person uses the tool, strap goes on either the fabric cuff or glove. > All of our workstations where we handle ESD material have tested > conductive laminate or mats with ground straps. All work stations are > tested yearly. > > This work is done in an ISO-6 room (Class 1000). RH control is 45% > +-3% but you still need ESD control as wafers tend to charge up during > processing. All our cassettes and wafer boxes are stat-pro 100 black > in color. The other thing to watch out for is electrical test probes; > you must always ground all probes before testing your device. Some > test equipment does not ground the output pins and coax lines can > build up a large charge and zap your device. > > The thing about ESD damage is that you cannot always see it and it is > then a latent defect waiting to eat your lunch later. > > Hopes this helps > > Rick > > Draper Laboratory > > Principal Member of the Technical Staff > > Group Leader Microfabrication Operations > > 555 Technology Square > > Cambridge Ma, 02139-3563 > > www.draper.com > > rmorrison at draper.com > > W 617-258-3420 > > C 508-930-3461 > > *From:*labnetwork-bounces at mtl.mit.edu > [mailto:labnetwork-bounces at mtl.mit.edu] *On Behalf Of *Robert M. HAMILTON > *Sent:* Thursday, May 14, 2015 11:05 AM > *To:* Paul, Jack > *Cc:* labnetwork at mtl.mit.edu > *Subject:* Re: [labnetwork] Flooring - ISO 5/6 > > Fab Colleagues, > > I'd like to broaden the discussion of conductive floors and > electrostatic discharge (ESD). I have trouble understanding how it is > dealt with. At the outset, I have little experience with ESD as our > lab is near the Pacific Ocean with moderate climate. ESD is less an > issue for us than in the drier, colder parts of the US. However, given > the climate controls in newer fabs it would seem ESD is less and issue > within a fab than in the environs. > > To use the lab our members and staff suit up with boots that are > dielectric, shoe covers, gowns, caps and then nitrile gloves (we are > aware some cleanroom garb is available from conductive materials). > Noting this the gloves seem to be a "fly to the ointment" for ESD > control. > > Example. Recently a lab member asked for replacement of ESD wrist > straps at our wire bonders. My question is how much protection from > ESD is had by a conductive bracelet if the ultimate garb is a pair of > dielectric gloves? It seems gloves provide a barrier which acting for > and against and ESD strategy. > > Although oblique to this discussion I'd like to mention we also have a > robust ground-grid consisting of a flat 2" copper strap to provide > excellent grounds for equipment, particularly rf enabled systems. > > Of note, in a long history of semiconductor research we have not > encountered device failures from ESD in our evolving lab environments. > Having said this, the University of California Marvell NanoLab was > built with conductive vinyl floors. > > Regards, > > Bob Hamilton > > PS I'll digress a bit and share an story. The UC's anthropology > library came to us some years back to find a way to neutralize the > electrostatic force that bound ancient Egyptian papyrus to the plastic > envelopes they were stored in. The papyrus was bound so tightly it > tore before breaking loose. We introduced them to Ion Systems, > specialist in ESD room control. Ion Systems came up with an effective > solution to their problem. > > > > Robert Hamilton > > University of CA, Berkeley > Marvell NanoLab Equipment Manager > > Rm 520 Sutardja Dai Hall, MC 1754 > > Berkeley, CA 94720 > > Phone 510-809-8618 (desk - preferred) > > Mobile 510-325-7557 (my personal mobile) > > E-mail preferred: bob at eecs.berkeley.edu > http://nanolab.berkeley.edu/ > > On Wed, May 13, 2015 at 5:12 PM, Paul, Jack > wrote: > > Greetings Lo?k, > > May I suggest a seamless resilient floor material (sheet vinyl with > welded seams) in lieu of epoxy? > > There are various sheet vinyl products available that can be installed > less expensively than epoxy, and even more important, more easily > repaired in an operational cleanroom environment. > > One product we have used successfully is Medintech, by Armstrong, > which is a homogeneous sheet vinyl material that can be installed with > heat-welded seams and has good chemical resistance as well as static > conductivity. There are other competing products that work just as > well (this is by no means a sales pitch for Armstrong!). > > Hope this helps. > > Best regards, > > Jack > > -----Original Message----- > From: labnetwork-bounces at mtl.mit.edu > > [mailto:labnetwork-bounces at mtl.mit.edu] On Behalf Of Lo?k GENCE > Sent: Tuesday, May 12, 2015 11:44 AM > To: labnetwork at mtl.mit.edu > Subject: [labnetwork] Flooring - ISO 5/6 > > Dear All, > > I would like to get some suggestions about of flooring for a small > cleanroom ISO 5/6. > > We are thinking about a dissipative epoxi flooring with copper tape > for grounding. > > Do you have some experience with this kind of flooring. Is there an > alternative to epoxi? > > Thank you for your comments. > > Regards, > > Lo?k > > -- > > __________________________________________ > > Dr. Lo?k Gence > > PUC-RIO/CETUC-LABSEM > > End Rua Marques de S?o Vicente, 225-Gavea > > CEP:22451-900 Rio de Janeiro, RJ-Brasil > > (Telefone) +55 (021) 3527-2193 > > (Mobile) +55 (021) 99156-5558 > > loik.gence at cetuc.puc-rio.br > > __________________________________________ > > _______________________________________________ > > labnetwork mailing list > > labnetwork at mtl.mit.edu > > https://www-mtl.mit.edu/mailman/listinfo.cgi/labnetwork > > > _______________________________________________ > labnetwork mailing list > labnetwork at mtl.mit.edu > https://www-mtl.mit.edu/mailman/listinfo.cgi/labnetwork > > ------------------------------------------------------------------------ > Notice: This email and any attachments may contain proprietary (Draper > non-public) and/or export-controlled information of Draper Laboratory. > If you are not the intended recipient of this email, please > immediately notify the sender by replying to this email and > immediately destroy all copies of this email. > ------------------------------------------------------------------------ > > > _______________________________________________ > labnetwork mailing list > labnetwork at mtl.mit.edu > https://www-mtl.mit.edu/mailman/listinfo.cgi/labnetwork -- __________________________________________ Dr. Lo?k Gence PUC-RIO/CETUC-LABSEM End Rua Marques de S?o Vicente, 225-Gavea CEP:22451-900 Rio de Janeiro, RJ-Brasil (Telefone) +55 (021) 3527-2193 (Mobile) +55 (021) 99156-5558 loik.gence at cetuc.puc-rio.br __________________________________________ -------------- next part -------------- An HTML attachment was scrubbed... URL: From vito.logiudice at uwaterloo.ca Thu May 14 19:10:49 2015 From: vito.logiudice at uwaterloo.ca (Vito Logiudice) Date: Thu, 14 May 2015 23:10:49 +0000 Subject: [labnetwork] Flooring - ISO 5/6 In-Reply-To: <555249FC.50706@cetuc.puc-rio.br> References: <555249FC.50706@cetuc.puc-rio.br> Message-ID: Hi Lo?k, I won?t add to the already excellent comments which have been made in regards to your ESD considerations. I will however share my somewhat negative experience with epoxy. We operated five years out of a temporary cleanroom here in Waterloo in which static dissipative epoxy was used as a covering over a concrete slab on grade floor (at least I think it was static dissipative if memory serves me correctly). After about two to three years, we found that the epoxy started to flake and peel in high wear areas such as in front of commonly used workstations. I personally prefer the welded vinyl sheet approach described by Jack Paul. This worked very well for us in a couple of other cleanroom projects I worked on many years ago. Best regards, Vito -- Vito Logiudice P.Eng. Director of Operations, Quantum NanoFab University of Waterloo Lazaridis QNC 1207 200 University Avenue West Waterloo, ON Canada N2L 3G1 Tel.: (519) 888-4567 ext. 38703 Email: vito.logiudice at uwaterloo.ca Website: https://fab.qnc.uwaterloo.ca -----Original Message----- From: Lo?k GENCE Date: Tuesday, May 12, 2015 at 2:44 PM To: "labnetwork at mtl.mit.edu" Subject: [labnetwork] Flooring - ISO 5/6 > >Dear All, > >I would like to get some suggestions about of flooring for a small >cleanroom ISO 5/6. >We are thinking about a dissipative epoxi flooring with copper tape for >grounding. > >Do you have some experience with this kind of flooring. Is there an >alternative to epoxi? > >Thank you for your comments. > > >Regards, >Lo?k > > > >-- >__________________________________________ >Dr. Lo?k Gence > >PUC-RIO/CETUC-LABSEM > >End Rua Marques de S?o Vicente, 225-Gavea >CEP:22451-900 Rio de Janeiro, RJ-Brasil > > (Telefone) +55 (021) 3527-2193 > > (Mobile) +55 (021) 99156-5558 > >loik.gence at cetuc.puc-rio.br >__________________________________________ > > >_______________________________________________ >labnetwork mailing list >labnetwork at mtl.mit.edu >https://www-mtl.mit.edu/mailman/listinfo.cgi/labnetwork From vito.logiudice at uwaterloo.ca Thu May 14 19:17:41 2015 From: vito.logiudice at uwaterloo.ca (Vito Logiudice) Date: Thu, 14 May 2015 23:17:41 +0000 Subject: [labnetwork] Automated Emergency shutoff valve Message-ID: Hi Matthieu, I don?t have experience with the valves you mention. However, I seem to vaguely recall that some some gas cabinet vendors do offer some sort of option for automatically shutting the cylinder valve itself in the event of a TGMS alarm. Hopefully someone on this forum will have more to add or perhaps you can discuss this possibility with your gas cabinet vendor(s) if you haven?t already done so. Best, Vito -- Vito Logiudice P.Eng. Director of Operations, Quantum NanoFab University of Waterloo Lazaridis QNC 1207 200 University Avenue West Waterloo, ON Canada N2L 3G1 Tel.: (519) 888-4567 ext. 38703 Email: vito.logiudice at uwaterloo.ca Website: https://fab.qnc.uwaterloo.ca From: "", Matthieu Nannini > Date: Thursday, May 14, 2015 at 1:02 PM To: Labnetwork > Subject: [labnetwork] Automated Emergency shutoff valve Collegues, Our facilites dept. is reviewing our operations before a ? used-to-be-not-so-major ? renovation. They are flirting with this idea of installing Emergency Gas Cylinder Valve shutoff like sold by the following company: http://www.halogenvalve.com/ These valves would be hooked up to our TGMS. Any of you has such an installation ? Anyone could comment ? Thanks ----------------------------------- Matthieu Nannini McGill Nanotools Microfab Manager t: 514 398 3310 c: 514 758 3311 f: 514 398 8434 http://mnm.physics.mcgill.ca/ ------------------------------------ -------------- next part -------------- An HTML attachment was scrubbed... URL: From shott at stanford.edu Thu May 14 22:38:11 2015 From: shott at stanford.edu (John Shott) Date: Thu, 14 May 2015 19:38:11 -0700 Subject: [labnetwork] Automated Emergency shutoff valve In-Reply-To: <405ACE07-D5DE-43B6-A81C-9D00C36B62DF@mcgill.ca> References: <405ACE07-D5DE-43B6-A81C-9D00C36B62DF@mcgill.ca> Message-ID: <55555C13.9010308@stanford.edu> Matthieu: While I have no specific experience with this particular emergency gas shutoff valve, I've got a bit of experience with some things that send remote shutoff signals to cylinders. Before I share my experiences with you, I want to make sure that I understand how your are hoping or planning to use this valve. To be honest, if all of the details have been handled properly, this seems to be a pretty clever approach. On what gases are you planning on using this valve? They are clearly advertising it for use with chlorine but it is not clear that it will work with other CGA and tank valve configurations (including cylinders equipped with DISS fittings). While automated shutoff would also be attractive with many of our toxic friends, I'd be very leery of using this with silane, germane, DCS, hydrogen, ammonia, or methane ... or anything this is flammable ... for fear that the motor (which could be in close proximity to a leak) is not designed/rated for such use and could ignite a fire before it got your cylinder closed. Second, is this likely to be used in gas cabinets? And do those cabinets already have a pneumatically controlled valve that shuts off the gas somewhere in the pigtail before it gets to the regulator? If so, have you worked out the details of how this automatic valve would work in concert with the pigtail valve both in emergency shutdown situations and in normal bottle change events? I do like being able to shut cylinders remotely ... in addition to gas detection shutdowns, seismic shutdowns, and signals from fire alarms, smoke detectors, etc., we have a total of 14 "break glass" emergency shutdown switches scattered throughout our lab that are located in any area where a gas leak could happen. These just become digital inputs into our TGMS PLC. That gives us a convenient way of shutting down all gases quickly and remotely .... even if a gas detector hasn't "smelled" anything. While most of our gas cabinets still use only pneumatically controlled shutoff valves in the pigtail we are gradually migrating to use of pneumatic cylinder valves. We currently use pneumatic valves on all of our 100% germane and silane cylinders. I like being able to shut those gases at the cylinder rather than pretty close to the cylinder ... particularly since a lot of leaks occur at the CGA/DISS connection. Our gas cabinets have front panel selection of whether we are using pneumatic cylinder valves or hand wheels ... so that is convenient for us. I'm not sure that pneumatic cylinder valves are common on all gases and in all locales, so that may not be an option for all. Where pneumatic cylinder valves aren't available or a viable option, I think that this motor drive is a clever approach and worth exploring ... particularly if it can be use on just about any CGA connection and cylinder valve. I'd feel even better about it if it were rated Class 1 Div 2 so that it could be used on more flammable/pyrophoric gases ... I'll be curious to hear if our gas handling friends at Critical Systems and some of the other folks with much gas handling experience have to say ... but I think that anything that allows you to close a cylinder without having your nose 15 cm from the CGA connection is worth some careful exploration. Let me know if you have any further questions and good luck with your renovation. John On 5/14/2015 10:02 AM, Matthieu Nannini, Dr. wrote: > Collegues, > > Our facilites dept. is reviewing our operations before a > ? used-to-be-not-so-major ? renovation. They are flirting with this > idea of installing Emergency Gas Cylinder Valve shutoff like sold by > the following company: http://www.halogenvalve.com/ > These valves would be hooked up to our TGMS. > > Any of you has such an installation ? Anyone could comment ? > > Thanks > > ----------------------------------- > Matthieu Nannini > McGill Nanotools Microfab > Manager > t: 514 398 3310 > c: 514 758 3311 > f: 514 398 8434 > http://mnm.physics.mcgill.ca/ > ------------------------------------ > > > > _______________________________________________ > labnetwork mailing list > labnetwork at mtl.mit.edu > https://www-mtl.mit.edu/mailman/listinfo.cgi/labnetwork -------------- next part -------------- An HTML attachment was scrubbed... URL: From tbritton at criticalsystemsinc.com Thu May 14 23:37:29 2015 From: tbritton at criticalsystemsinc.com (Tom Britton) Date: Fri, 15 May 2015 03:37:29 +0000 Subject: [labnetwork] Automated Emergency shutoff valve In-Reply-To: <405ACE07-D5DE-43B6-A81C-9D00C36B62DF@mcgill.ca> References: <405ACE07-D5DE-43B6-A81C-9D00C36B62DF@mcgill.ca> Message-ID: <9820889A26AAC34EBEB01D62DFCEEB2E0130DEAF@P3PWEX2MB006.ex2.secureserver.net> Hi Matthieu, All semiconductor grade gas cabinets have the ability to have this feature integrated into the control system. You should not need to add additional valves to your gas cabinets. Thank you! Tom Britton Director of Sales Critical Systems, Inc. Direct: 208-890-1417 Office: 877-572-5515 www.CriticalSystemsInc.com [logo for email signature png] From: labnetwork-bounces at mtl.mit.edu [mailto:labnetwork-bounces at mtl.mit.edu] On Behalf Of Matthieu Nannini, Dr. Sent: Thursday, May 14, 2015 12:03 PM To: Labnetwork Subject: [labnetwork] Automated Emergency shutoff valve Collegues, Our facilites dept. is reviewing our operations before a < used-to-be-not-so-major > renovation. They are flirting with this idea of installing Emergency Gas Cylinder Valve shutoff like sold by the following company: http://www.halogenvalve.com/ These valves would be hooked up to our TGMS. Any of you has such an installation ? Anyone could comment ? Thanks ----------------------------------- Matthieu Nannini McGill Nanotools Microfab Manager t: 514 398 3310 c: 514 758 3311 f: 514 398 8434 http://mnm.physics.mcgill.ca/ ------------------------------------ -------------- next part -------------- An HTML attachment was scrubbed... URL: -------------- next part -------------- A non-text attachment was scrubbed... Name: image001.png Type: image/png Size: 9501 bytes Desc: image001.png URL: From reynolds at ece.ucsb.edu Fri May 15 14:23:04 2015 From: reynolds at ece.ucsb.edu (Tom Reynolds) Date: Fri, 15 May 2015 11:23:04 -0700 Subject: [labnetwork] Flooring - ISO 5/6 In-Reply-To: References: <555249FC.50706@cetuc.puc-rio.br> Message-ID: <015d01d08f3c$2f7a5360$8e6efa20$@ece.ucsb.edu> Hi Everyone, I agree with Bob that in a climate controlled lab where the humidity is constantly kept above 30% that ESD should not be a major concern. Moving parts/materials between labs or spaces that do not have this type of control could cause problems. The major concern to me is the cost of expensive ESD rated materials/installs to alleviate a problem that may not exist, but as a precaution always is included in the lab design/build. The only real problem I have seen in our lab may exist at our AFM. There was some possible sticking of the tip to the sample while in a certain tapping measurement mode. I was not convinced that it was ESD, but a spot ionizer from NRD did seem to cure the issue. This was recommended by the AFM vendor. Types of problems such as this could be caused by high N2 purges across samples/surfaces or too high a laminar air flow causing localized charging. Even with this stated, we did not see any ESD damage to the parts measured only difficulty with the measurement. The AFM has a proper earth ground and we have a similar building ground to Berkeley which is much more elaborate than most installations. Our flooring is a welded seam Armstrong Medintech product which is anti-static, but not a fully conductive floor, which from my past experience requires both conductive adhesive and copper strips tied to a proper earth ground placed beneath the floor. The cost between anti-static and fully conductive flooring is large. Expensive materials and install. The last sentence answers another earlier flooring question from the mail list. We have been satisfied with the Armstrong product, but some of the welded seams have split in high traffic areas, but we were able to repair. I have yet to see a complete study done that is conclusive about ESD in research level cleanrooms, but have been told by many vendors that humidity control should take care of most ESD issues. It may be that every space is different and may need POU control if determined to be a problem. I may not incur many ESD problems in the UCSB lab now because of the materials used during construction so it is difficult to compare. Cheers, Tom -------------------------------------------------------------- Tom Reynolds, Lab Manager UCSB Nanofabrication Facility Electrical and Computer Engineering Dept. Engineering Science Bldg #225, Room 1109E Santa Barbara, CA 93106 805-893-3918 x215 office 805-451-3979 cell 805-893-3918 fax reynolds at ece.ucsb.edu From: labnetwork-bounces at mtl.mit.edu [mailto:labnetwork-bounces at mtl.mit.edu] On Behalf Of Robert M. HAMILTON Sent: Thursday, May 14, 2015 8:05 AM To: Paul, Jack Cc: labnetwork at mtl.mit.edu Subject: Re: [labnetwork] Flooring - ISO 5/6 Fab Colleagues, I'd like to broaden the discussion of conductive floors and electrostatic discharge (ESD). I have trouble understanding how it is dealt with. At the outset, I have little experience with ESD as our lab is near the Pacific Ocean with moderate climate. ESD is less an issue for us than in the drier, colder parts of the US. However, given the climate controls in newer fabs it would seem ESD is less and issue within a fab than in the environs. To use the lab our members and staff suit up with boots that are dielectric, shoe covers, gowns, caps and then nitrile gloves (we are aware some cleanroom garb is available from conductive materials). Noting this the gloves seem to be a "fly to the ointment" for ESD control. Example. Recently a lab member asked for replacement of ESD wrist straps at our wire bonders. My question is how much protection from ESD is had by a conductive bracelet if the ultimate garb is a pair of dielectric gloves? It seems gloves provide a barrier which acting for and against and ESD strategy. Although oblique to this discussion I'd like to mention we also have a robust ground-grid consisting of a flat 2" copper strap to provide excellent grounds for equipment, particularly rf enabled systems. Of note, in a long history of semiconductor research we have not encountered device failures from ESD in our evolving lab environments. Having said this, the University of California Marvell NanoLab was built with conductive vinyl floors. Regards, Bob Hamilton PS I'll digress a bit and share an story. The UC's anthropology library came to us some years back to find a way to neutralize the electrostatic force that bound ancient Egyptian papyrus to the plastic envelopes they were stored in. The papyrus was bound so tightly it tore before breaking loose. We introduced them to Ion Systems, specialist in ESD room control. Ion Systems came up with an effective solution to their problem. Robert Hamilton University of CA, Berkeley Marvell NanoLab Equipment Manager Rm 520 Sutardja Dai Hall, MC 1754 Berkeley, CA 94720 Phone 510-809-8618 (desk - preferred) Mobile 510-325-7557 (my personal mobile) E-mail preferred: bob at eecs.berkeley.edu http://nanolab.berkeley.edu/ On Wed, May 13, 2015 at 5:12 PM, Paul, Jack wrote: Greetings Lo?k, May I suggest a seamless resilient floor material (sheet vinyl with welded seams) in lieu of epoxy? There are various sheet vinyl products available that can be installed less expensively than epoxy, and even more important, more easily repaired in an operational cleanroom environment. One product we have used successfully is Medintech, by Armstrong, which is a homogeneous sheet vinyl material that can be installed with heat-welded seams and has good chemical resistance as well as static conductivity. There are other competing products that work just as well (this is by no means a sales pitch for Armstrong!). Hope this helps. Best regards, Jack -----Original Message----- From: labnetwork-bounces at mtl.mit.edu [mailto:labnetwork-bounces at mtl.mit.edu] On Behalf Of Lo?k GENCE Sent: Tuesday, May 12, 2015 11:44 AM To: labnetwork at mtl.mit.edu Subject: [labnetwork] Flooring - ISO 5/6 Dear All, I would like to get some suggestions about of flooring for a small cleanroom ISO 5/6. We are thinking about a dissipative epoxi flooring with copper tape for grounding. Do you have some experience with this kind of flooring. Is there an alternative to epoxi? Thank you for your comments. Regards, Lo?k -- __________________________________________ Dr. Lo?k Gence PUC-RIO/CETUC-LABSEM End Rua Marques de S?o Vicente, 225-Gavea CEP:22451-900 Rio de Janeiro, RJ-Brasil (Telefone) +55 (021) 3527-2193 (Mobile) +55 (021) 99156-5558 loik.gence at cetuc.puc-rio.br __________________________________________ _______________________________________________ labnetwork mailing list labnetwork at mtl.mit.edu https://www-mtl.mit.edu/mailman/listinfo.cgi/labnetwork _______________________________________________ labnetwork mailing list labnetwork at mtl.mit.edu https://www-mtl.mit.edu/mailman/listinfo.cgi/labnetwork -------------- next part -------------- An HTML attachment was scrubbed... URL: From lewin at illinois.edu Sat May 16 09:49:45 2015 From: lewin at illinois.edu (Reinhart, Leslie Lewin) Date: Sat, 16 May 2015 13:49:45 +0000 Subject: [labnetwork] University of Illinois Urbana-Champaign - RESEARCH ENGINEER POSITION Message-ID: <0B48381248D4954CBEE4C4CC8FD100BD64067E23@chimbx3.ad.uillinois.edu> Hello, I am an HR Specialist at the University of Illinois at Urbana-Champaign. We are seeking a Research Engineer for our Micro and Nanotechnology Laboratory. Please see the attached posting for distribution. Thank you, Leslie Leslie Lewin Reinhart, EdM Human Resources Specialist University of Illinois at Urbana-Champaign College of Engineering | HR Shared Services 203 Engineering Hall, MC-266 1308 W. Green Street Urbana, Illinois 61801 phone 217.300.3872 | fax 217.333.3832 email lewin at illinois.edu | HRSS Wiki Under the Illinois Freedom of Information Act (FOIA), any written communication to or from University employees regarding University business is a public record and may be subject to public disclosure. -------------- next part -------------- An HTML attachment was scrubbed... URL: -------------- next part -------------- A non-text attachment was scrubbed... Name: ECE Flyer to Post job.pdf Type: application/pdf Size: 305873 bytes Desc: ECE Flyer to Post job.pdf URL: From codreanu at udel.edu Mon May 18 09:02:12 2015 From: codreanu at udel.edu (Iulian Codreanu) Date: Mon, 18 May 2015 09:02:12 -0400 Subject: [labnetwork] Automated Emergency shutoff valve In-Reply-To: References: Message-ID: <5559E2D4.4010605@udel.edu> I have both the pneumatic cylinder valve (like the one shown in the attachment sent by Dennis) and the shutoff valve on the pigtail (downstream of the DISS connection). Both are controlled by the gas cabinet/TGMS. iulian Codreanu, Ph.D. Director of Operations, UD NanoFab 163 ISE Lab 221 Academy Street Newark, DE 19716 302-831-2784 http://udnf.udel.edu On 5/14/2015 4:37 PM, Dennis Schweiger wrote: > So, your project manager wants to put this rotary valve operator in > the cabinet, as a means to shut off the cylinder? We had those in our > early Air Products cabinets, they were problematic, and we eventually > just defeated them. None of our cylinder cabinets have them now. It > would make more sense to go to an air operated DISS cylinder valve > (see page 2 in the attachment), and have the DISS portion prepped for > a restrictive flow orifice. In addition to this, I would look at the > gas usage, and "right size" the cylinder volume of gas so that your > cylinder change out cadence is about 12-18 months. That might mean > that you'd need to have a cylinder short filled. This reduces your > exposure risk in the event there is some type of catastrophic failure > in your delivery system. > > There is no way I'd add another complex mechanical system (rotating > cylinder shut off) into our HPM cabinets, when there are way better > solutions out there. > > Dennis > 734.647.2055 Ofc > "People can be divided into 3 groups - those that make things happen, > those that watch things happen, and those that wonder what happened." > Within which group do you belong? > > On Thu, May 14, 2015 at 4:26 PM, Matthieu Nannini, Dr. > > wrote: > > Dennis, > > Yes. All are in exhausted gas cabinet. When I presented the safety > mechanism to the project manager here, showing him the shutoff > valve in the pigtail just before the panel, he mentioned that > there was still a weak point between this valve and the actual > cylinder rotary valve itself. If a leak occurs at the rotary valve > or the CGA/DISS connection or at the pigtail nothing can stop it. > Hence the shutoff valve on the cylinder rotary valve idea from the > project manager. > > Matthieu > > Le 2015-05-14 ? 16:14, Dennis Schweiger > a ?crit : > >> Matthieu, >> >> are you using gas cabinets to house your HPM cylinders? If so, >> why wouldn't you use the shutoffs in the cabinets to perform this >> functionality? >> >> DennisSchweiger >> University of Michigan/LNF >> 734.647.2055 Ofc >> "People can be divided into 3 groups - those that make things >> happen, those that watch things happen, and those that wonder >> what happened." Within which group do you belong? >> >> On Thu, May 14, 2015 at 1:02 PM, Matthieu Nannini, Dr. >> > >> wrote: >> >> Collegues, >> >> Our facilites dept. is reviewing our operations before a >> ? used-to-be-not-so-major ? renovation. They are flirting >> with this idea of installing Emergency Gas Cylinder Valve >> shutoff like sold by the following company: >> http://www.halogenvalve.com/ >> These valves would be hooked up to our TGMS. >> >> Any of you has such an installation ? Anyone could comment ? >> >> Thanks >> >> ----------------------------------- >> Matthieu Nannini >> McGill Nanotools Microfab >> Manager >> t: 514 398 3310 >> c: 514 758 3311 >> f: 514 398 8434 >> http://mnm.physics.mcgill.ca/ >> ------------------------------------ >> >> >> _______________________________________________ >> labnetwork mailing list >> labnetwork at mtl.mit.edu >> https://www-mtl.mit.edu/mailman/listinfo.cgi/labnetwork >> >> > > > > > _______________________________________________ > labnetwork mailing list > labnetwork at mtl.mit.edu > https://www-mtl.mit.edu/mailman/listinfo.cgi/labnetwork -------------- next part -------------- An HTML attachment was scrubbed... URL: From xiaojin.wang at louisville.edu Mon May 18 16:54:12 2015 From: xiaojin.wang at louisville.edu (xiaojin.wang at louisville.edu) Date: Mon, 18 May 2015 20:54:12 +0000 Subject: [labnetwork] manual of vaccum general model 80-4 Message-ID: Dear all, I would appreciate if anybody can provide me with a manual of vacuum general model 80-4 flow gauge (see link http://www.ebay.com/itm/like/320906993959?lpid=82&chn=ps) Best wishes Xiaojin Wang Senior process engineer Micro/nano technology center University of Louisville -------------- next part -------------- An HTML attachment was scrubbed... URL: From chris at malocsay.com Tue May 19 09:18:22 2015 From: chris at malocsay.com (Chris Malocsay) Date: Tue, 19 May 2015 06:18:22 -0700 Subject: [labnetwork] manual of vaccum general model 80-4 In-Reply-To: References: Message-ID: Hi Xiaojin; only a few sources I can recommend for the manual. Call Dale Quinn, 510-786-0439. He will have one. Or, Bid Service has an extensive library. I bet they have one. Or HSD Engineering as a third chance. This is a 30 year old unit. May be difficult to repair. Chris Malocsay Chris Malocsay 510-506-5894 Please Join us at AVS 62 in San Jose this year! AVS 62 Click Here! On Mon, May 18, 2015 at 1:54 PM, wrote: > Dear all, > > > > I would appreciate if anybody can provide me with a manual of vacuum > general model 80-4 flow gauge (see link > http://www.ebay.com/itm/like/320906993959?lpid=82&chn=ps) > > > > Best wishes > > Xiaojin Wang > > > > Senior process engineer > > Micro/nano technology center > > University of Louisville > > _______________________________________________ > labnetwork mailing list > labnetwork at mtl.mit.edu > https://www-mtl.mit.edu/mailman/listinfo.cgi/labnetwork > > -------------- next part -------------- An HTML attachment was scrubbed... URL: From james.beall at nist.gov Tue May 19 12:40:54 2015 From: james.beall at nist.gov (Beall, James A.) Date: Tue, 19 May 2015 16:40:54 +0000 Subject: [labnetwork] manual of vaccum general model 80-4 In-Reply-To: References: Message-ID: Dear Xiaolin, I?ll scan our copy and email it to you. Jim Beall National Institute of Standards and Technology Quantum Devices Group Mailcode 817.03 325 Broadway 1C-110 Boulder, CO 80305-3328 303-497-5989 303-497-3042 (fax) On May 19, 2015, at 7:18 AM, Chris Malocsay > wrote: Hi Xiaojin; only a few sources I can recommend for the manual. Call Dale Quinn, 510-786-0439. He will have one. Or, Bid Service has an extensive library. I bet they have one. Or HSD Engineering as a third chance. This is a 30 year old unit. May be difficult to repair. Chris Malocsay Chris Malocsay 510-506-5894 Please Join us at AVS 62 in San Jose this year! AVS 62 Click Here! On Mon, May 18, 2015 at 1:54 PM, > wrote: Dear all, I would appreciate if anybody can provide me with a manual of vacuum general model 80-4 flow gauge (see link http://www.ebay.com/itm/like/320906993959?lpid=82&chn=ps) Best wishes Xiaojin Wang Senior process engineer Micro/nano technology center University of Louisville _______________________________________________ labnetwork mailing list labnetwork at mtl.mit.edu https://www-mtl.mit.edu/mailman/listinfo.cgi/labnetwork _______________________________________________ labnetwork mailing list labnetwork at mtl.mit.edu https://www-mtl.mit.edu/mailman/listinfo.cgi/labnetwork -------------- next part -------------- An HTML attachment was scrubbed... URL: From rreger at purdue.edu Wed May 20 10:40:05 2015 From: rreger at purdue.edu (Reger, Ronald K) Date: Wed, 20 May 2015 14:40:05 +0000 Subject: [labnetwork] Engineering Job Opportunity at Purdue's Birck Nanotechnology Center Message-ID: The Birck Nanotechnology Center at Purdue University is seeking an experienced process & equipment engineer to join our Microfab Research Engineering staff. The general description of the position is as follows: Responsible for process characterization and equipment repair for the following equipment: Chemical Vapor Deposition, Atomic Layer Deposition, Atomic Force Microscopy, X-Ray Diffraction, Epitaxy, CNT Growth Systems. Support & train new users in assigned equipment, and support research efforts of Birck faculty. Support of networked systems used in the Birck Nanotechnology Center including Toxic Gas Monitoring System, atrium displays, and the Equipment/Business Scheduling & Reporting software package. Support recharge data analysis and computation. For complete details please visit: http://purdue.taleo.net/careersection/wl/joblist.ftl?lang=en&portal=10140480283 The job number is: 1500910 Ron Reger Engineering Manager, Birck Nanotechnology Center Purdue University West Lafayette, Indiana -------------- next part -------------- An HTML attachment was scrubbed... URL: From bob.henderson at etchedintimeinc.com Fri May 22 17:54:30 2015 From: bob.henderson at etchedintimeinc.com (Bob Henderson) Date: Fri, 22 May 2015 14:54:30 -0700 Subject: [labnetwork] Community help requested Message-ID: <000001d094d9$e1e37a20$a5aa6e60$@henderson@etchedintimeinc.com> I have 2 items I would like to present to the labnetwork community. The first item is a Japanese company who has developed a very sophisticated spray process tool for lift-off techniques <.5 micron that is looking for a university site who is involved in processes that require critical lift-off after metal depositions for groups that are working in the sub-.5 micron area. They have a manual system that can accommodate 2" up to 6" round substrates and can also process pieces easily. They would like to donate this system to a university setting and in exchange be able to access the system on occasion for running demonstrations for their customers in the industry. Waste products are collected for easy disposal so the facilities cost which would be the responsibility of the university should be minimal. If there is an interest please email me and I will direct you to the American representative here in Arizona. The second item has to do with spin on glass. I am moving my operation next to a company that is supplying quality spin on glass for a variety of semiconductor companies. Not being familiar with various applications that require spin-on glass I was hoping the group could check with their various departments to see what is new for this type of material. Again, please email me if there is interest. Thanks Bob Henderson, Etched In Time -------------- next part -------------- An HTML attachment was scrubbed... URL: From bill at eecs.berkeley.edu Sat May 23 15:01:43 2015 From: bill at eecs.berkeley.edu (Bill Flounders) Date: Sat, 23 May 2015 12:01:43 -0700 Subject: [labnetwork] Community help requested In-Reply-To: <555fd5e4.9c2f6b0a.29a1.ffff9aecSMTPIN_ADDED_BROKEN@mx.google.com> References: <555fd5e4.9c2f6b0a.29a1.ffff9aecSMTPIN_ADDED_BROKEN@mx.google.com> Message-ID: <5560CE97.3080301@eecs.berkeley.edu> An HTML attachment was scrubbed... URL: From matthieu.nannini at mcgill.ca Mon May 25 14:41:11 2015 From: matthieu.nannini at mcgill.ca (Matthieu Nannini, Dr.) Date: Mon, 25 May 2015 18:41:11 +0000 Subject: [labnetwork] Nanostrip Message-ID: <886108CD-1C89-4CE5-8BC0-FD7EDE3E83C9@mcgill.ca> Colleagues, My facilities dept. has classified Nanostrip being oxidizing liquid class 3 ( MSDS says NPFA rating are H3, F0, R2 and this says oxidizing liquid category 3). NPFA 5000 and 400 recommend no more that 2 lbs in use and 20 lbs in storage if in cabinet. Obviously we are over since one 1 Gal container of nanostrip is about 15 lbs. Does someone has the same issue ? Thanks Matthieu ----------------------------------- Matthieu Nannini McGill Nanotools Microfab Manager t: 514 398 3310 c: 514 758 3311 f: 514 398 8434 http://mnm.physics.mcgill.ca/ ------------------------------------ -------------- next part -------------- An HTML attachment was scrubbed... URL: From mtang at stanford.edu Mon May 25 17:25:57 2015 From: mtang at stanford.edu (Mary Tang) Date: Mon, 25 May 2015 14:25:57 -0700 Subject: [labnetwork] Nanostrip In-Reply-To: <886108CD-1C89-4CE5-8BC0-FD7EDE3E83C9@mcgill.ca> References: <886108CD-1C89-4CE5-8BC0-FD7EDE3E83C9@mcgill.ca> Message-ID: <55639365.10706@stanford.edu> Dear Matthieu -- When the Stanford Nanofab underwent renovations in 2012, the Stanford Fire Marshall gave us a copy of a report from 1993 which was a comprehensive code study plan for the proposed Annex to our building. It's a long document, but in it, there was a question from the Fire Marshall (the County FM, I believe) as to whether piranha should be considered a Class 3 oxidizer, subject to the restriction of a four pound maximum limit in open use (i.e., much less than used in a piranha bath.) Although it is common practice to use piranha in open baths with appropriate engineering controls, I gather that the code analysis to substantiate its safe use in this manner was not easy to find. So Stanford commissioned a third-party consultant, specializing in environmental safety, to examine this. The consultant did an analysis of the chemistry of piranha clean solutions at temperature and concluded that the oxidizing hazard (as measured by peroxide concentration) presented was actually much less than 30% hydrogen peroxide solution which is considered a Class 2 oxidizer. So, now in our Chemtracker database, piranha is now listed as a Class 2 oxidizer. Nanostrip is no longer in the database, but was also classified as a Class 2 oxidizer for the same reasons. We have also run into limits on storage. If you have a sprinklered storage area, you local codes might be more generous with storage limits. Mary -- Mary X. Tang, Ph.D. Stanford Nanofabrication Facility Paul G. Allen Bldg 141, Mail Code 4070 Stanford, CA 94305 (650)723-9980 mtang at stanford.edu http://snf.stanford.edu On 5/25/2015 11:41 AM, Matthieu Nannini, Dr. wrote: > Colleagues, > > My facilities dept. has classified Nanostrip being oxidizing liquid > class 3 ( MSDS says NPFA rating are H3, F0, R2 and this > says > oxidizing liquid category 3). > NPFA 5000 and 400 recommend no more that 2 lbs in use and 20 lbs in > storage if in cabinet. Obviously we are over since one 1 Gal container > of nanostrip is about 15 lbs. > > Does someone has the same issue ? > > Thanks > > Matthieu > > > ----------------------------------- > Matthieu Nannini > McGill Nanotools Microfab > Manager > t: 514 398 3310 > c: 514 758 3311 > f: 514 398 8434 > http://mnm.physics.mcgill.ca/ > ------------------------------------ > > > > _______________________________________________ > labnetwork mailing list > labnetwork at mtl.mit.edu > https://www-mtl.mit.edu/mailman/listinfo.cgi/labnetwork -------------- next part -------------- An HTML attachment was scrubbed... URL: From matthieu.nannini at mcgill.ca Tue May 26 15:57:54 2015 From: matthieu.nannini at mcgill.ca (Matthieu Nannini, Dr.) Date: Tue, 26 May 2015 19:57:54 +0000 Subject: [labnetwork] Nanostrip In-Reply-To: <55639365.10706@stanford.edu> References: <886108CD-1C89-4CE5-8BC0-FD7EDE3E83C9@mcgill.ca> <55639365.10706@stanford.edu> Message-ID: <187ACD18-E9B0-4304-9045-1F04AFA37E34@mcgill.ca> Thanks Mary, I made a few calculations and if I did not make any mistake, in a 1 US Gallon of Nanostrip, the molar concentration of H2O2 and H2SO5 (a by-product in piranha and a strong oxidizer) are 0.52 and 0.79 respectively. If you compare to 30% H2O2 which is 9.38, Nanostrip is much less of a hazard so it makes sense to keep it in the class 2 oxidizer classification. Matthieu Le 2015-05-25 ? 17:25, Mary Tang > a ?crit : Dear Matthieu -- When the Stanford Nanofab underwent renovations in 2012, the Stanford Fire Marshall gave us a copy of a report from 1993 which was a comprehensive code study plan for the proposed Annex to our building. It's a long document, but in it, there was a question from the Fire Marshall (the County FM, I believe) as to whether piranha should be considered a Class 3 oxidizer, subject to the restriction of a four pound maximum limit in open use (i.e., much less than used in a piranha bath.) Although it is common practice to use piranha in open baths with appropriate engineering controls, I gather that the code analysis to substantiate its safe use in this manner was not easy to find. So Stanford commissioned a third-party consultant, specializing in environmental safety, to examine this. The consultant did an analysis of the chemistry of piranha clean solutions at temperature and concluded that the oxidizing hazard (as measured by peroxide concentration) presented was actually much less than 30% hydrogen peroxide solution which is considered a Class 2 oxidizer. So, now in our Chemtracker database, piranha is now listed as a Class 2 oxidizer. Nanostrip is no longer in the database, but was also classified as a Class 2 oxidizer for the same reasons. We have also run into limits on storage. If you have a sprinklered storage area, you local codes might be more generous with storage limits. Mary -- Mary X. Tang, Ph.D. Stanford Nanofabrication Facility Paul G. Allen Bldg 141, Mail Code 4070 Stanford, CA 94305 (650)723-9980 mtang at stanford.edu http://snf.stanford.edu On 5/25/2015 11:41 AM, Matthieu Nannini, Dr. wrote: Colleagues, My facilities dept. has classified Nanostrip being oxidizing liquid class 3 ( MSDS says NPFA rating are H3, F0, R2 and this says oxidizing liquid category 3). NPFA 5000 and 400 recommend no more that 2 lbs in use and 20 lbs in storage if in cabinet. Obviously we are over since one 1 Gal container of nanostrip is about 15 lbs. Does someone has the same issue ? Thanks Matthieu ----------------------------------- Matthieu Nannini McGill Nanotools Microfab Manager t: 514 398 3310 c: 514 758 3311 f: 514 398 8434 http://mnm.physics.mcgill.ca/ ------------------------------------ _______________________________________________ labnetwork mailing list labnetwork at mtl.mit.edu https://www-mtl.mit.edu/mailman/listinfo.cgi/labnetwork -------------- next part -------------- An HTML attachment was scrubbed... URL: From bulentk at sabanciuniv.edu Thu May 28 02:06:58 2015 From: bulentk at sabanciuniv.edu (Bulent KOROGLU) Date: Thu, 28 May 2015 09:06:58 +0300 Subject: [labnetwork] Cleanroom Contamination issue In-Reply-To: References: Message-ID: <5566B082.9040201@sabanciuniv.edu> Dear All, We have 850m2 cleanroom with the single zone elevated floor and single zone plenum configuration We want to reduce electricity bills for that reason we are planning to install particle counting automation system to our building because, when the clean room is idle all of FFU / FCU's are continuously working at constant speed and also it is working at same speed of air cycle. in the configuration mentioned above, if we install the particle counting system will it effect to best way or it can't effect anyway, how do you control your facility contamination ? standalone hand held particle counter or automation system ? Best Regards. ___________________________________________ B?lent K?RO?LU Sabanci University Faculty of Engineering and Natural Sciences Orhanli, Tuzla, 34956 Istanbul, Turkey Tel : +90 216 483 95 40 Fax: +90 216 483 95 50 ___________________________________________ From matthieu.nannini at mcgill.ca Thu May 28 10:46:30 2015 From: matthieu.nannini at mcgill.ca (Matthieu Nannini, Dr.) Date: Thu, 28 May 2015 14:46:30 +0000 Subject: [labnetwork] Cleanroom Contamination issue In-Reply-To: <5566B082.9040201@sabanciuniv.edu> References: <5566B082.9040201@sabanciuniv.edu> Message-ID: <22CB1962-AE20-43F6-8820-9211965B9874@mcgill.ca> Speaking of McGill, we do a yearly particle measurement at several spot in the cleanroom. however, we do plan like you, to install a few continuous particle counters and mouvement detectors and link them to our ventilation system to bring the FFUs' speed down at night or when nobody is inside. This scheme has proven to be very efficient in other labs that I visited. Even if the room goes above its certification at night (> class 100), in about 30min early in the morning the FFUs are able to bring the room back to class 100. You need to have variable speed FFU that will accept a control signal. Matthieu Le 2015-05-28 ? 02:06, Bulent KOROGLU a ?crit : > Dear All, > > We have 850m2 cleanroom with the single zone elevated floor and single zone plenum configuration > > We want to reduce electricity bills for that reason we are planning to install particle counting automation system to our building > > because, when the clean room is idle all of FFU / FCU's are continuously working at constant speed and also it is working at same speed of air cycle. > > in the configuration mentioned above, if we install the particle counting system will it effect to best way or it can't effect anyway, > > how do you control your facility contamination ? > > standalone hand held particle counter or automation system ? > > Best Regards. > > ___________________________________________ > B?lent K?RO?LU > Sabanci University > Faculty of Engineering and Natural Sciences > Orhanli, Tuzla, 34956 Istanbul, Turkey > Tel : +90 216 483 95 40 > Fax: +90 216 483 95 50 > ___________________________________________ > > _______________________________________________ > labnetwork mailing list > labnetwork at mtl.mit.edu > https://www-mtl.mit.edu/mailman/listinfo.cgi/labnetwork