[Sem] Retaining the SEM and building a sputter coater

[Jeff Miller]

Hi John,

What did you end up with, turbo-wise? I do a brisk business in those, have a good dozen or so. It's hard to find a good one on the cheap. 
You really can't evaluate the bearings until they are at full speed under vacuum. 


Weekends work well for me too, esp. Saturdays. 


I've been looking into commercial sputter coaters and they're just about as simple as I expected. One thing I hadn't thought much about was a thermocouple gauge for it. I probably have a tube I can donate but not a readout/meter. They're pretty simple in theory so anyone willing to solder one up...please step forward. We might be able to find a Mini-Convectron on Ebay for about $50... _maybe_. 


-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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