Hello Sven, Vitaley mentioned a good source "Etching in Microsystem Technology" by Michael Köhler. Since this book is presumably out of print already check these books on related topics like "Semiconductor Sensors" by S. M. Sze http://www.amazon.com/Etching-Microsystem-Technology- Michael-K%C3%B6hler/dp/3527295615#bort Good luck, Karl -----Ursprüngliche Nachricht----- Von: mems-talk-bounces@memsnet.org [mailto:mems-talk-bounces@memsnet.org] Im Auftrag von Sven TS Holmström Gesendet: Dienstag, 26. Januar 2010 14:34 An: General MEMS discussion Betreff: [mems-talk] Etch Rates for Micromachining Processing Dear all MEMS-list subscribers, One very important piece of information while designing micro-fabrication flows is known etch-rates of your materials in different etchants. For several years I have made good use of Etch Rates for Micromachining Processing, part I and II by Williams et. al to get a first idea of possibilities. These papers are certainly a good source, but they are not complete and they are by now a few years old. Does anyone here know about a more complete compilation of etch rates, or perhaps a smaller, but complimentary collection? I am interested in papers as well as books or other media, if available. best regards, /Sven Holmström, Koc University, Istanbul, Optical Microsystems Laboratory (http://mems.ku.edu.tr/)