Hello Nir, Thanks for you response. Our product is more on opto receiver. we are using a silicon wafers, back side metallization is Cr & Ni, top side is Al. We are measuring a very small amount of leakage current (~ 50pA max)for this product. surface contaminant is one of our hint others are micro cracking. Currently we are maintaining a water resistivity of 12M ohms of di-water. for micro cracking we have no seen any, that can cause the catastropic failure (x10 of the limit). I hope this piece of information will some how help you to give us other view of our problem. Thanks Emil Burgos Senior Process/Development Engineer --- Nir Pernatwrote: > there are several dicing techniques , since I have > worked a lot on this > matter I think I can help you. > we have a difficult product to dice and if you could > give me some more info. > on your product I can recommend a dicing technology > for you . > ----------------------------------- > Nir Pernat > Process Development Engineer > > Phone-Or Ltd. > 17 Hatasia St. P.O Box 323 > Or-Yahuda 60252 > Israel > > Tel: +972-3-634-4488 (ext. 172) > Fax: +972-3-634-9292 > www.phone-or.com > > > > -----Original Message----- > From: Emil Jun Burgos [mailto:emillburg@yahoo.com] > Sent: Monday, January 28, 2002 12:45 AM > To: mems-talk@memsnet.org > Subject: [mems-talk] Wafer Dicing > > > Hello, > > Can somebody point me any technical reference for > wafer (silicon) dicing (wet process). I'm currently > working in improving the yield of our product which > is > attribute to wafer dicing. > > Thank you very much. > > Emil Burgos > Senior Process/Product Development Engineer > Great stuff seeking new owners in Yahoo! Auctions! > http://auctions.yahoo.com > _______________________________________________ Great stuff seeking new owners in Yahoo! Auctions! http://auctions.yahoo.com