Transene Company offers Transene Silver Etchant TFS for etching silver
in semiconductor, IC, and MEMS applications.  Silver Etchant TFS is a
non-hazardous etchant manufactured using SEMI grade raw materials and
filtered to 1 micron.

Christopher Christuk
Transene Company
10 Electronics Avenue
Danvers MA  01923
Tel:  978 777 7860
Fax:  978 739 5640
Email:  Christopher@transene.com

-----Original Message-----
From: BForman@Shipley.com [mailto:BForman@Shipley.com]
Sent: Tuesday, April 22, 2003 12:15 PM
To: mems-talk@memsnet.org
Subject: [mems-talk] RE: silver enchant reply






Try these:

a) 2 M ferric Nitrate
b) 4 oz Chromium trioxide (Chromic acid) + 20 ml Sulfuric acid + 2000ml
water

Bob Forman
Shipley EIF Semiconductor  Advanced Packaging
425/785-9817
Bforman@shipley.com