[Sem] Retaining the SEM and building a sputter coater

[Larry Ackerman]

some comments:
you don't need or want high vacuum for a sputter coater--mechanical pump 
only

my offer for a high voltage power supply remains--one is essential

I am willing to show anyone interested the old commercial unit I have 
revived in my lab at UCSF.

Larry

On 7/10/2013 12:29 AM, Jeff Miller wrote:
> Actually, here's a pair of Mini Convectrons for about $40 shipping
> included. We really could use 2 or 3. The one pictured has 1/8" npt
> fittings, which are probably the most practical for us at this point.
>
> Ebay item #
> 231013652852
>
> I'm short on cash, but I could clean, test, and calibrate them. Anyone
> feeling flush with $40?
>
> -Jeff
>
> ------------------------------------------------------------------------
> *From:* Jeff Miller <mysterylectricity at yahoo.com>
> *To:* "sem at lists.noisebridge.net" <sem at lists.noisebridge.net>
> *Sent:* Tuesday, July 9, 2013 11:59 PM
> *Subject:* Re: [Sem] Retaining the SEM and building a sputter coater
>
> Oh BTW how big is that diff pump? Water cooled I bet?
>
> I've been reading about how silver is a practical alternative to gold
> for sputtering specimens. Looks promising.
>
> -Jeff
>
>
> ------------------------------------------------------------------------
> *From:* John McMaster <johndmcmaster at gmail.com>
> *To:* sem at lists.noisebridge.net
> *Sent:* Tuesday, July 9, 2013 11:26 PM
> *Subject:* Re: [Sem] Retaining the SEM and building a sputter coater
>
> FWIW I am converting my vacuum system from diffusion to turbo pumped.
> Assuming it works (they are really expensive working so I had to piece
> it together from eBay after doing a bunch of research) I may have a
> Varian diffusion pump to donate to NB for SEM / sputter system use.  I
> will try to play around with coating on my setup in the near future.
>
> Let me know if there is interest for people to discuss and plan things
> out.  I can usually only meet on weekends though.
>
> On 07/09/2013 12:08 AM, Jeff Miller wrote:
>> Well it's a bit of a catch-22. As long as there's ongoing interest in
>> the SEM and we can keep it and the space free from decay, the SEM can
>> stay. If it's underutilized and falls into disrepair, it should go
>> somewhere it might be better appreciated.
>>
>> I haven't seen the space lately but it sounds finished enough.
>>
>> I think we should put the priority on building a sputter coater. It
>> should be fairly simple to do. I've seen some pretty poor designs on
>> YouTube that still sort of work. I think we could build a pretty nice
>> one over 2 or 3 months of weekends, tops.
>>
>> Probably <$100 in parts that we can't scrounge or make for something
>> quite nice.
>>
>> I'll be looking at commercial designs this week and try to come up
>> with some plans this week and next.
>>
>> -Jeff
>>
>>
>>
>>
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-- 
Larry Ackerman
San Francisco