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Proceedings Paper

Large format 15µm pitch XBn detector
Author(s): Yoram Karni; Eran Avnon; Michael Ben Ezra; Eyal Berkowitz; Omer Cohen; Yossef Cohen; Roman Dobromislin; Itay Hirsh; Olga Klin; Philip Klipstein; Inna Lukomsky; Michal Nitzani; Igor Pivnik; Omer Rozenberg; Itay Shtrichman; Michael Singer; Shay Sulimani; Avi Tuito; Eliezer Weiss
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Paper Abstract

Over the past few years, a new type of High Operating Temperature (HOT) photon detector has been developed at SCD, which operates in the blue part of the MWIR atmospheric window (3.4 - 4.2 μm). This window is generally more transparent than the red part of the MWIR window (4.4 - 4.9 μm), and thus is especially useful for mid and long range applications. The detector has an InAsSb active layer and is based on the new "XBn" device concept, which eliminates Generation-Recombination dark current and enables operation at temperatures of 150K or higher, while maintaining excellent image quality. Such high operating temperatures reduce the cooling requirements of Focal Plane Array (FPA) detectors dramatically, and allow the use of a smaller closed-cycle Stirling cooler. As a result, the complete Integrated Detector Cooler Assembly (IDCA) has about 60% lower power consumption and a much longer lifetime compared with IDCAs based on standard InSb detectors and coolers operating at 77K. In this work we present a new large format IDCA designed for 150K operation. The 15 μm pitch 1280×1024 FPA is based on SCD's XBn technology and digital Hercules ROIC. The FPA is housed in a robust Dewar and is integrated with Ricor's K508N Stirling cryo-cooler. The IDCA has a weight of ~750 gram and its power consumption is ~ 5.5 W at a frame rate of 100Hz. The Mean Time to Failure (MTTF) of the IDCA is more than 20,000 hours, greatly facilitating 24/7 operation.

Paper Details

Date Published: 24 June 2014
PDF: 11 pages
Proc. SPIE 9070, Infrared Technology and Applications XL, 90701F (24 June 2014); doi: 10.1117/12.2049691
Show Author Affiliations
Yoram Karni, SCD Semiconductor Devices (Israel)
Eran Avnon, SCD SemiConductor Devices (Israel)
Michael Ben Ezra, Israel Ministry of Defense (Israel)
Eyal Berkowitz, SCD SemiConductor Devices (Israel)
Omer Cohen, SCD SemiConductor Devices (Israel)
Yossef Cohen, SCD SemiConductor Devices (Israel)
Roman Dobromislin, SCD SemiConductor Devices (Israel)
Itay Hirsh, SCD SemiConductor Devices (Israel)
Olga Klin, SCD SemiConductor Devices (Israel)
Philip Klipstein, SCD Semiconductor Devices (Israel)
Inna Lukomsky, SCD SemiConductor Devices (Israel)
Michal Nitzani, SCD Semiconductor Devices (Israel)
Igor Pivnik, SCD SemiConductor Devices (Israel)
Omer Rozenberg, SCD SemiConductor Devices (Israel)
Itay Shtrichman, SCD SemiConductor Devices (Israel)
Michael Singer, SCD SemiConductor Devices (Israel)
Shay Sulimani, SCD SemiConductor Devices (Israel)
Avi Tuito, Israel Ministry of Defense (Israel)
Eliezer Weiss, SCD SemiConductor Devices (Israel)

Published in SPIE Proceedings Vol. 9070:
Infrared Technology and Applications XL
Bjørn F. Andresen; Gabor F. Fulop; Charles M. Hanson; Paul R. Norton, Editor(s)

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