2.1 - High Performance Uncooled Amorphous Silicon IRFPA with 17μm Pixel-Pitch

TL;DRAbstract

The high level of accumulated expertise by ULIS and CEA/LETI on uncooled microbolometers made from amorphous silicon with 45 m, 35 m and 25 m, enables ULIS to develop VGA and XGA IRFPA formats with 17 m pixel-pitch to fulfill every applications. These detector keeps all the recent innovations developed on the 25 m pixel-pitch ROIC (detector configuration by serial link, low power consumption and wide electrical dynamic range). The specific appeal of these units lies in the high spatial resolution it provides while keeping the small thermal time constant. The reduction of the pixel-pitch turns the VGA array into a product well adapted for high resolution and compact systems and the XGA a product well adapted for high resolution imaging systems. High electro-optical performances have been demonstrated with NETD < 50 mK. We insist on NETD and wide thermal dynamic range trade-off, and on the high characteristics uniformity, achieved thanks to the mastering of the amorphous silicon technolo

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