Development of low dark current SiGe-detector arrays for visible-NIR imaging sensor

Ashok K. Sood; Robert A. Richwine; Yash R. Puri; Nicole DiLello; Judy L. Hoyt; Tayo I. Akinwande; Stuart Horn; Ray S. Balcerak; Gary Bulman; Rama Venkatasubramanian; Arvind I. D'Souza; Thomas G. Bramhall

doi:10.1117/12.820896

6 May 2009 Development of low dark current SiGe-detector arrays for visible-NIR imaging sensor

Ashok K. Sood, Robert A. Richwine, Yash R. Puri, Nicole DiLello, Judy L. Hoyt, Tayo I. Akinwande, Stuart Horn, Ray S. Balcerak, Gary Bulman, Rama Venkatasubramanian, Arvind I. D'Souza, Thomas G. Bramhall

Author Affiliations +

Proceedings Volume 7298, Infrared Technology and Applications XXXV; 72983D (2009) https://doi.org/10.1117/12.820896
Event: SPIE Defense, Security, and Sensing, 2009, Orlando, Florida, United States

Abstract

SiGe based Focal Plane Arrays offer a low cost alternative for developing visible- NIR focal plane arrays that will cover the spectral band from 0.4 to 1.6 microns. The attractive features of SiGe based IRFPA's will 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 comparison for the SiGe based VIS-NIR Sensor with performance characteristics of InGaAs, InSb, and HgCdTe based IRFPA's. Various approaches including device designs are discussed for reducing the dark current in SiGe detector arrays; these include Superlattice, Quantum dot and Buried junction designs that have the potential of reducing the dark current by several orders of magnitude. The paper also discusses approaches to reduce the leakage current for small detector size and fabrication techniques. In addition several innovative approaches that have the potential of increasing the spectral response to 1.8 microns and beyond.

Citation Download Citation

Ashok K. Sood, Robert A. Richwine, Yash R. Puri, Nicole DiLello, Judy L. Hoyt, Tayo I. Akinwande, Stuart Horn, Ray S. Balcerak, Gary Bulman, Rama Venkatasubramanian, Arvind I. D'Souza, and Thomas G. Bramhall "Development of low dark current SiGe-detector arrays for visible-NIR imaging sensor", Proc. SPIE 7298, Infrared Technology and Applications XXXV, 72983D (6 May 2009); https://doi.org/10.1117/12.820896

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available