학술논문

Bulk micromachined electrostatic beam steering micromirror array
Document Type
Conference
Source
IEEE/LEOS International Conference on Optical MEMs Optical MEMS Optical MEMs, 2002. Conference Digest. 2002 IEEE/LEOS International Conference on. :15-16 2002
Subject
Photonics and Electrooptics
Components, Circuits, Devices and Systems
Communication, Networking and Broadcast Technologies
Engineered Materials, Dielectrics and Plasmas
Electrostatics
Beam steering
Micromirrors
Silicon
Mirrors
Micromachining
Wafer bonding
Gold
Electrodes
Low voltage
Language
Abstract
Large area, 320-mirror arrays have been fabricated using a combination of bulk micromachining of SOI wafers and anodic bonding. Each silicon mirror is 750/spl times/800 /spl mu/m/sup 2/ and 14 /spl mu/m thick, coated with a /spl sim/0.1 /spl mu/m-thick layer of Au. The bulk silicon mirrors are electrostatically actuated with shaped parallel plate electrodes placed 86 /spl mu/m below, and they can be stably oriented anywhere in a /spl plusmn/5/spl deg/ (mechanical) two-dimensional box with voltage drives as low as 60 V.