[labnetwork] (no subject)

Fri Aug 17 16:12:08 EDT 2018

The quality of the pump is not the only problem.  How long does the manufacturer support their pumps and controllers is also very important.  When they deem the product obsolete, and some do it after only a few years, it gets harder to get repaired.  Then you are stuck finding third party repair that can repair it as long as they can still find the parts on the third party market.  This is more for turbos and turbo controllers.  Eventually even the third party repair companies cannot fix them anymore, which is why you see the questions come across about certain turbo and controller pairs on the labnetwork.  I won’t say what companies these are but definitely something to consider.

Kurt

---------------------------------------------------
Kurt Kupcho
Process Engineer/Safety Officer

NFC
1550 Engineering Drive
ECB Room 3110
Madison, WI  53706

E:  kurt.kupcho at wisc.edu<mailto:kurt.kupcho at wisc.edu>
T:  608-262-2982

[Nano-Fab_color-flush]

From: labnetwork-bounces at mtl.mit.edu [mailto:labnetwork-bounces at mtl.mit.edu] On Behalf Of Kevin Owen
Sent: Friday, August 17, 2018 10:58 AM
To: XIN GUO
Cc: Fab Network
Subject: Re: [labnetwork] 回覆: Leybold turbo pump controller

Shane,

My guess is they couldn't strike a contract with Leybold to get a good deal on the pumps. Because I also know vendors that exclusively use Leybold pumps. In my personal experience, I can't say I've had significantly more or significantly fewer "bad" experiences with any particular pump vendor (although the same can not be said for refurbishment companies).

Generally, I take the vendor recommendation for high vacuum pumps (turbos, cryos, etc), but request a specific backing/roughing pump, since we have standardized those at the LNF. The vendor should be able to provide the pumping capacity requirement and you can choose based on that (we have standardized to 2 pumps, one big, one small, and choose the one that meets/exceeds the requirement from the vendor). If you don't have anything standardized, I would just go with the recommendation of the vendor, although if they have several options I might see if one of them matches an existing piece of equipment. For us, this is primarily intended to reduce the number of on-site spares we need.

-Kevin

On Fri, Aug 17, 2018 at 9:01 AM, XIN GUO <sguo18 at yorku.ca<mailto:sguo18 at yorku.ca>> wrote:
Hi Colleagues,

My question might not be quite related to this topic but I hope to get some feedback.

We are considering to acquire a PECVD and RIE. I saw some buyers explicitly exclude Leybold pumps in their requirements. I am open to all suppliers but it does seem that Leybold pumps may have more issues than other reputable suppliers. Or, maybe I just got a wrong impression. Anyway, I do not mean to be bias on any supplier.

Btw, any rule of thumb for choosing pumps for cleanroom equipment?

Thanks

Shane

On Fri, Aug 17, 2018 at 8:37 AM Wing Leong CHUNG <mfcchung at ust.hk<mailto:mfcchung at ust.hk>> wrote:

Dear all,

I would like to express my apperciation to the replies from network members, they really give me many valuable suggestions and information regarding to my problem.

With Many Many Thanks

Jeff Chung

________________________________
寄件者: Wing Leong CHUNG
寄件日期: 2018年8月16日 15:32
收件者: labnetwork at mtl.mit.edu<mailto:labnetwork at mtl.mit.edu>
主旨: Leybold turbo pump controller

Dear network members,

We have two turbo pump controllers (Mag Drive 1000, to drive MAG 900 turbo pump) out of order. It shows "Bearing Sensor" "Levitation Fail" onto the display. We swarp a good controller to the system, no error message appear. I guest the fault is come form the controller itself. However, I contact with Leybold but they said this model is obsoleted, no service can be provide further.

Is there any suggestion of company can provide service to repair the controllers?

Jeff Chung
Engineer
Nanosystem Fabrication Facility (NFF) of Hong Kong University of Science and Technology (HKUST)
Cell: (852)-2358-7211
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--
Kevin Owen
Senior Engineer in Research
Operations Group, Lurie Nanofabrication Facility
University of Michigan
(734) 545-4014
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