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Proceedings Paper

HgCdTe detectors and FPAs for remote sensing applications
Author(s): Arvind I. D'Souza; Larry C. Dawson; Dan J. Berger; Stewart Clark; Priyalal S. Wijewarnasuriya; Jagmohan Bajaj; Jose M. Arias; William E. Tennant; Lester J. Kozlowski; Kadri Vural
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Paper Abstract

Short wavelength, middle wavelength, mid-long wavelength, long wavelength, and very long wavelength focal plane arrays (FPAs) are required for remote sensing applications. Advances in the Molecular Beam Epitaxy (MBE) growth of Mercury Cadmium Telluride (HgCdTe) and detector architectures utilized, have resulted in high performance detectors being fabricated in the 1 micrometers to 16 micrometers spectral range Custom Read Out Integrated Circuits (ROICs) are designed and fabricated to interface the HgCdTe detector arrays. The hybrid focal pane array is made up of the HgCdTe detector array and the CMOS-based ROIC. Hybrid FPAs performance parameters are presented. The HgCdTe detector material is used are grown by MBE on lattice matched CdZnTe substrates. Custom ROICs are fabricated in a commercial CMOS foundry. FPA D* performance values have been obtained for a multitude of spectral ranges and configurations that include; (i) (lambda) c equals 1.8 micrometers , 12 X 256 arrays operating at 295 K with median D* approximately 1.4 X 1012 cm Hz1/2/W, (ii) (lambda) c equals 10.5 micrometers , 256 X 256 arrays operating at 85 K with medina D* equals 3.9 X 1011 cm Hz1/2/W at a background flux (phi) b equals 7.82 X 1015 ph/cm2-2 and (iii) (lambda) c equals 15.8 micrometers at 65K, 128 X 128 array operating at 40K with peak D* of 2.76 X 1011 cm Hz1/2/W at a background flux (phi) b equals 8.0 X 1015 ph/cm2- s. The performance of these FPAs will be presented.

Paper Details

Date Published: 26 July 1999
PDF: 7 pages
Proc. SPIE 3698, Infrared Technology and Applications XXV, (26 July 1999); doi: 10.1117/12.354499
Show Author Affiliations
Arvind I. D'Souza, Boeing Electronic Systems and Missile Defense (United States)
Larry C. Dawson, Boeing Electronic Systems and Missile Defense (United States)
Dan J. Berger, Boeing Electronic Systems and Missile Defense (United States)
Stewart Clark, Boeing Electronic Systems and Missile Defense (United States)
Priyalal S. Wijewarnasuriya, Rockwell Science Ctr. (United States)
Jagmohan Bajaj, Rockwell Science Ctr. (United States)
Jose M. Arias, Rockwell Science Ctr. (United States)
William E. Tennant, Rockwell Science Ctr. (United States)
Lester J. Kozlowski, Rockwell Science Ctr. (United States)
Kadri Vural, Rockwell Science Ctr. (United States)

Published in SPIE Proceedings Vol. 3698:
Infrared Technology and Applications XXV
Bjorn F. Andresen; Marija Strojnik, Editor(s)

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