Hi, Here's what I find interresting about DRIE process. Some of these papers were sent from this mems-talk. "Effect of Process Parameters on the Surface Morphology and Mechanical Performance of Silicon Structures After Deep Reactive Ion Etching (DRIE)", Kuo-Shen Chen, Arturo A. Ayón, JOURNAL OF MICROELECTROMECHANICAL SYSTEMS, VOL. 11, NO. 3, JUNE 2002 "Dependences of bottom and sidewall etch rates on bias voltage and source power during the etching of poly-Si and fluorocarbon polymer using SF6, C4F8 , and O2 plasmas", Jae-Ho Min, Gyeo-Re Lee, J. Vac. Sci. Technol. Jun 2004 "Characterization of a Time Multiplexed Inductively Coupled Plasma Etcher", A. A. Ayón, R. Braff, A. A. Ayón, R. Braff, Journal of The Electrochemical Society, 146 (1) 339-349 (1999) "Guidelines for Etching Silicon MEMS Structures Using Fluorine High-Density Plasmas at Cryogenic Temperatures", Meint J. de Boer,JOURNAL OF MICROELECTROMECHANICAL SYSTEMS, VOL. 11, NO. 4, AUGUST 2002 www.vtt.fi/inf/pdf/publications/2005/P559.pdf "State of the art deep silicon anisotropic etching on SOI bonded substrates for dielectric isolation and mems application" (symposium, Hawaii, 1999) Julie