Development of infrared FPA using bimaterial microcantilever arrays

Yufeng Jin*, Xiaomei Yu, Yongjun Zheng, Yuejin Zhao, Xiaohua Liu, Liquan Dong

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

2 Citations (Scopus)

Abstract

An optical-readout bimaterial microcantilever-type infrared detector improving both IR absorption and pixel uniformity is proposed. A Focal Plane Array (FPA) of 128×128 pixels was fabricated using 4-inch silicon Micro-Electro Mechanical System (MEMS) processes. The FPA design and process development are discussed and the Scanning Electron Microscope (SEM) photos and imaging results of the FPA are presented. The Noise Equivalent Temperature Difference (NETD) of the proposed device was measured to be 200mK by a gray level change method and the time constant was calculated to be ~15 ms under a 10 mTorr pressure.

Original languageEnglish
Title of host publicationInternational Symposium on Photoelectronic Detection and Imaging 2011
Subtitle of host publicationSensor and Micromachined Optical Device Technologies
DOIs
Publication statusPublished - 2011
EventInternational Symposium on Photoelectronic Detection and Imaging 2011: Sensor and Micromachined Optical Device Technologies - Beijing, China
Duration: 24 May 201126 May 2011

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume8191
ISSN (Print)0277-786X

Conference

ConferenceInternational Symposium on Photoelectronic Detection and Imaging 2011: Sensor and Micromachined Optical Device Technologies
Country/TerritoryChina
CityBeijing
Period24/05/1126/05/11

Keywords

  • FPA
  • NETD
  • bimaterial
  • microcantilever
  • time constant

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