[labmembers] borrow ProTEK B3 for long time KOH etch

[Helen Qiushi Ran]

Dear labmembers, 
My process need a through-wafer KOH etch. From my experience, the unprotected front surface will be attacked. I am wondering if some of the groups have ProTEK B3, and I can borrow a little. I only need it for one wafer. We would like to pay for the portion. Thanks in advance. 
Best, 
Helen 


Helen Qiushi Ran 
========================================= 
Department of Electrical Engineering 
Stanford University, Stanford, CA 94305. 
Mobile: +1-650-796-1439 
Email: qran at stanford.edu 

-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://snf.stanford.edu/pipermail/labmembers/attachments/20130214/d602aacb/attachment.html>