[labnetwork] C4F8 being hard to find?

[Corey Wolin]

Check with Advanced Specialty Gases (Reno,NV), can typically have this and other HC gases delivered in 2-3 Days. Prices are competitive.

https://www.advancedspecialtygases.com/#footer

Corey

“One Test is worth an infinite number of expert opinions”


> On Nov 25, 2020, at 4:47 PM, Dennis Schweiger <schweig at umich.edu> wrote:
> 
> 
> Guy,
> 
> We used to purchase C4F8 from Concord Specialty Gases (1-800-818-5109).  However back in 2013 we switched and now use our local specialty gas vendor (Cryogenic Gases (313)835-5513) for sourcing this material as it was less hassle to return the empties.  I am not sure who they're using as the supplier, but will check with them.
> 
> Dennis Schweiger
> 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 Wed, Nov 25, 2020 at 8:30 AM DeRose, Guy A. <derose at caltech.edu> wrote:
>> Hello community,
>> 
>>  
>> 
>> From the time we re-opened our cleanroom back in June through now, we have had challenges sourcing C4F8 (Halocarbon C318) gas for our plasma etch tools.  We have tried three different vendors, and the lead times have been unusually long.  Are there any gas suppliers that any of you have had good luck sourcing this gas within a couple of weeks?  I have been waiting for one cylinder to be shipped since October 5 and am still waiting.  We have been trying to get enough to have a spare on hand, but sourcing has been an issue to the point of running empty while waiting for a replacement.
>> 
>>  
>> 
>> Thanks,
>> 
>> Guy
>> 
>>  
>> 
>> Guy DeRose, PhD, Member of the Professional Staff
>> 
>> Associate Director of Technical Operations, Kavli Nanoscience Institute
>> 
>> California Institute of Technology, Pasadena, CA USA
>> 
>> (O) 1-626-395-3423 (M) 1-626-676-8529
>> 
>> http://kni.caltech.edu
>> 
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