Process for in-plane and out-of-plane single-crystal-silicon thermal microactuators

Autor: Nadim I. Maluf, Kurt E. Petersen, Erno H. Klaassen, John Logan, J. Mark Noworolski
Rok vydání: 1996
Předmět:
Zdroj: Sensors and Actuators A: Physical. 55:65-69
ISSN: 0924-4247
DOI: 10.1016/s0924-4247(96)01251-4
Popis: A process to manufacture single-crystal thermal actuators using silicon fusion bonding and electrochemical etch stop is presented. The process permits the simultaneous creation of in-plane and out-of-plane thermal actuators together with levers suitable for both directions of actuation. A final dry-release step is used, permitting the manufacture of MOS or bipolar devices in conjunction with actuators. Out-of-plane actuation of vertically levered devices has been demonstrated. The −3 dB response frequency of out-of-plane actuators is approximately 1000 Hz in air. Novel levered in-plane devices which achieve deflections of up to 200 μm have been fabricated. An estimate of the upper bound of thermal actuator efficiency is presented.
Databáze: OpenAIRE