Greetings, Years ago I used paralyne ,however we had a depo machine that was made specifically to deposit this material. So before I can answer your etching question I need to know whether you use what in my time was the paralyne patented process. Regards Walter Essinger www.elume.com -----Original Message----- From: Johannes Grether [mailto:johannes.grether@polymtl.ca] Sent: Tuesday, September 06, 2005 6:50 AM To: mems-talk@memsnet.org Subject: [mems-talk] plasma etching of parylene Hi all together, I have got a question concerning etching of parylene. As far as I know, the way to etch parylene is an oxygen plasma etching process. As the ratio to a resist is about 1:1, I want to use a chromium mask to pattern the parylene during the etching. My question is: has anybody any expertise in this etching process and can give me some data that I can use as a guideline? Thanks in advance. Johannes