Uncooled amorphous silicon 160 x 120 IRFPA with 25 um pixel-pitch for large volume applications

M. Vilain; J. L. Tissot; O. Legras; J. J. Yon; C. Minassian; B. Fièque; J. M. Chiappa

doi:10.1117/12.760900

24 January 2008 Uncooled amorphous silicon 160 x 120 IRFPA with 25 μm pixel-pitch for large volume applications

M. Vilain, J. L. Tissot, O. Legras, J. J. Yon, C. Minassian, B. Fièque, J. M. Chiappa

Proceedings Volume 6835, Infrared Materials, Devices, and Applications; 68350F (2008) https://doi.org/10.1117/12.760900
Event: Photonics Asia 2007, 2007, Beijing, China

Abstract

This paper reviews the specifications and performances of a 160 × 120 uncooled infrared focal plane array made from amorphous silicon microbolometers with a pixel-pitch of 25 μm, integrated into a LCC TEC-less package. This detector has been specifically designed for large volume production, while keeping the main features of high end developments, at detection pixel level, as well as at ROIC level, like detector configuration by serial link in order to minimize the number of electrical inputs, low power, large dynamic range...) The main particular features of this achievement are the miniaturized very low weight package, along with easy TEC-less operation naturally afforded via the readout architecture, which leads to very low consumption levels, making it well adapted to low end hand held or helmet mounted thermal imaging cameras. We present in the last part of this paper the main electro-optical characteristics and TEC-less operation, demonstrating wide thermal dynamic range and low power, thanks to the simple single-level amorphous silicon technology, coupled with advanced ROIC design.

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M. Vilain, J. L. Tissot, O. Legras, J. J. Yon, C. Minassian, B. Fièque, and J. M. Chiappa "Uncooled amorphous silicon 160 x 120 IRFPA with 25 μm pixel-pitch for large volume applications", Proc. SPIE 6835, Infrared Materials, Devices, and Applications, 68350F (24 January 2008); https://doi.org/10.1117/12.760900

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KEYWORDS

Staring arrays

Sensors

Amorphous silicon

Temperature metrology

Bolometers

Thermography

Camera shutters

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