Modeling, design, and fabrication of uncooled IR CMOS compatible thermoelectric sensors

Eran Socher; Yehuda Sinai; Ofir Bochobza-Degani; Yael Nemirovsky

doi:10.1117/12.468669

23 January 2003 Modeling, design, and fabrication of uncooled IR CMOS compatible thermoelectric sensors

Eran Socher, Yehuda Sinai, Ofir Bochobza-Degani, Yael Nemirovsky

Proceedings Volume 4820, Infrared Technology and Applications XXVIII; (2003) https://doi.org/10.1117/12.468669
Event: International Symposium on Optical Science and Technology, 2002, Seattle, WA, United States

Abstract

We present a novel dry micromachining technique for the release of the thermally isolated spiral thermocouples, which achieve the highest thermal resistance for a rectangular pixel with a fixed size. The sensors are fabricated using mask-less post-processing of standard CMOS chips that contain CMOS readout electronics. Basic 1D thermal modeling of the sensors is presented and its limitations. Analysis of the performance of the sensors is derived from the modeling. Mechanical resonant frequencies for the structures are also shown. Design of such sensors in standard CMOS technology is reviewed, as well as results of fabricated devices. Fabricated devices include single elements and arrays up to 32*32 elements with pixel size and pitch of several tens of microns.

Citation Download Citation

Eran Socher, Yehuda Sinai, Ofir Bochobza-Degani, and Yael Nemirovsky "Modeling, design, and fabrication of uncooled IR CMOS compatible thermoelectric sensors", Proc. SPIE 4820, Infrared Technology and Applications XXVIII, (23 January 2003); https://doi.org/10.1117/12.468669

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