wafer laser cutting

Sebastian J. Osterfeld sjo at stanford.edu
Wed Nov 17 08:25:34 PST 2010

I've used American Precision Dicing in San Jose for this before. They 
have a special laser inside a water jet, which means the cutting zone 
won't melt. This way you don't introduce heat damage and more 
importantly, the process won't form a melted edge bead, meaning your 
cutout will still be perfectly flat. This is important if you want to 
use contact masks. The cutting edge will be slightly serrated, though, 
as if someone had drilled thousands of 0.2mm dia. holes to form the cut.


On 11/16/2010 6:00 PM, Angie Lin wrote:
> Hi all,
> Does anyone know of any good wafer laser cutting services in the 
> area?  I'd like to cut a 2-inch round out of a Si wafer.
> Thanks for your help,
> Angie

Sebastian J. Osterfeld, Ph.D.
Shan X. Wang Group
Dept. of Materials Science&  Engineering
Stanford University

McCullough Building, Room 208A
476 Lomita Mall
Stanford, CA 94305-4045

Phone:  (650) 906-1946
Fax:    (650) 736-1984
Email:  sjo at stanford.edu
Office:    http://maps.google.com/maps?f=q&hl=en&q=w122.1732+n37.4275&ll=37.427502,-122.173204&spn=0.006296,0.013561&t=h

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