The Fabrication of Micro-heaters with Low Consumption Power Using SOI and Trench Structures and Its Characteristics

SOI와 트랜치 구조를 이용한 초저소비전력형 미세발열체의 제작과 그 특성

  • 정귀상 (동서대학교 정보시스템공학부 메카트로닉스전공) ;
  • 홍석우 (삼성종합기술원 MEMS팀) ;
  • 이원재 (KERI 신소재응용그룹) ;
  • 송재성 (KERI 신소재응용그룹)
  • Published : 2001.03.01

Abstract

This paper presents the optimized design, fabrication and thermal characteristics of micro-heaters for thermal MEMS (micro elelctro mechanical system) applications usign SOI (Si-on-insulator) and trench structures. The micro-heater is based on a thermal measurement principle and contains for thermal isolation regions a 10㎛ thick Si membrane with oxide-filled trenches in the SOI membrane rim. The micro-heater was fabricated with Pt-RTD (resistance thermometer device) on the same substrate by suing MgO as medium layer. The thermal characteristics of the micro-heater wit the SOI membrane is 280$\^{C}$ at input power 0.9W; for the SOI membrane with 10 trenches, it is 580$\^{C}$ due to reduction of the external thermal loss. Therefore, the micro-heater with trenches in SOI membrane rim provides a powerful and versatile alternative technology for improving the performance of micro-thermal sensors and actuators.

Keywords

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