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Proceedings Paper

Latest improvements on long wave p on n HgCdTe technology at Sofradir
Author(s): Laurent Rubaldo; Rachid Taalat; Jocelyn Berthoz; Magalie Maillard; Nicolas Péré-Laperne; Alexandre Brunner; Pierre Guinedor; L. Dargent; A. Manissadjian; Y. Reibel; A. Kerlain
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Paper Abstract

SOFRADIR is the worldwide leader on the cooled IR detector market for high-performance space, military and security applications thanks to a well mastered Mercury Cadmium Telluride (MCT) technology, and recently thanks to the acquisition of III-V technology: InSb, InGaAs, and QWIP quantum detectors. As a result, strong and continuous development efforts are deployed to deliver cutting edge products with improved performances in terms of spatial and thermal resolution, dark current, quantum efficiency, low excess noise and high operability. The actual trend in quantum IR detector development is the design of very small pixel, with the higher achievable operating temperature whatever the spectral band. Moreover maintaining the detector operability and image quality at higher temperature moreover for long wavelength is a major issue. This paper presents the recent developments achieved at Sofradir to meet this challenge for LW band MCT extrinsic p on n technology with a cut-off wavelength of 9.3μm at 90K. State of the art performances will be presented in terms of dark current, operability and NETD temperature dependency, quantum efficiency, MTF, and RFPN (Residual Fixed Pattern Noise) stability up to 100K.

Paper Details

Date Published: 16 May 2017
PDF: 13 pages
Proc. SPIE 10177, Infrared Technology and Applications XLIII, 101771E (16 May 2017); doi: 10.1117/12.2264606
Show Author Affiliations
Laurent Rubaldo, SOFRADIR (France)
Rachid Taalat, SOFRADIR (France)
Jocelyn Berthoz, SOFRADIR (France)
Magalie Maillard, SOFRADIR (France)
Nicolas Péré-Laperne, SOFRADIR (France)
Alexandre Brunner, SOFRADIR (France)
Pierre Guinedor, SOFRADIR (France)
L. Dargent, SOFRADIR (France)
A. Manissadjian, SOFRADIR (France)
Y. Reibel, SOFRADIR (France)
A. Kerlain, SOFRADIR (France)


Published in SPIE Proceedings Vol. 10177:
Infrared Technology and Applications XLIII
Bjørn F. Andresen; Gabor F. Fulop; Charles M. Hanson; John Lester Miller; Paul R. Norton, Editor(s)

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