Characterization of SiGe-detector arrays for visible-NIR imaging sensor applications

Ashok K. Sood; Robert A. Richwine; Adam W. Sood; Yash R. Puri; Nicole DiLello; Judy L. Hoyt; Tayo I. Akinwande; Nibir Dhar; Raymond S. Balcerak; Thomas G. Bramhall

doi:10.1117/12.889205

21 May 2011 Characterization of SiGe-detector arrays for visible-NIR imaging sensor applications

Ashok K. Sood, Robert A. Richwine, Adam W. Sood, Yash R. Puri, Nicole DiLello, Judy L. Hoyt, Tayo I. Akinwande, Nibir Dhar, Raymond S. Balcerak, Thomas G. Bramhall

Author Affiliations +

Proceedings Volume 8012, Infrared Technology and Applications XXXVII; 801240 (2011) https://doi.org/10.1117/12.889205
Event: SPIE Defense, Security, and Sensing, 2011, Orlando, Florida, United States

Abstract

SiGe based focal plane arrays offer a low cost alternative for developing visible- near-infrared focal plane arrays that will cover the spectral band from 0.4 to 1.6 microns. The attractive features of SiGe based foal plane arrays take advantage of silicon based technology that promises small feature size, low dark current and compatibility with the low power silicon CMOS circuits for signal processing. This paper discusses performance characteristics for the SiGe based VIS-NIR Sensors for a variety of defense and commercial applications using small unit cell size and compare performance with InGaAs, InSb, and HgCdTe IRFPA's. We present results on the approach and device design for reducing the dark current in SiGe detector arrays. The electrical and optical properties of SiGe arrays at room temperature are discussed. We also discuss future integration path for SiGe devices with Si-MEMS Bolometers.

Citation Download Citation

Ashok K. Sood, Robert A. Richwine, Adam W. Sood, Yash R. Puri, Nicole DiLello, Judy L. Hoyt, Tayo I. Akinwande, Nibir Dhar, Raymond S. Balcerak, and Thomas G. Bramhall "Characterization of SiGe-detector arrays for visible-NIR imaging sensor applications", Proc. SPIE 8012, Infrared Technology and Applications XXXVII, 801240 (21 May 2011); https://doi.org/10.1117/12.889205

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