The printed circuit board industry uses stencils cut by lasers from thin
stainless steel.  (They use them for applying solder to PCB boards).  The
minimum hole size is about .001", I think, with the stencil thickness also
on the same order of thickness.  They should be available for about $300.

Goto to Google and search on "Laser Cut Stencil", and a bunch of companies
should pop up.

Good luck,

David Nemeth
Senior Process Engineer
Sophia Wireless, Inc.
14225-C Sullyfield Circle
Chantilly, VA
Ph: (703) 961-9573 x206
Fax:(703) 961-9576

-----Original Message-----
From: [email protected] [mailto:[email protected]]On
Behalf Of Nirmal Govindaraju
Sent: Wednesday, February 06, 2002 11:28 AM
To: [email protected]
Subject: [mems-talk] Shadow Masks


Hi,

I'm a Graduate Student at North Carolina State University and I am looking
for some information on people who produce shadow masks. Please note that
I will be using the shadow masks to fabricate thin film resistors and
thermocouples on a substrate using e-beam evaporation.

Thank you.
Sincerely,
Nirmal Govindaraju
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