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Proceedings Paper

Low-noise, low-temperature 256 x 256 Si:As IBC staring FPA
Author(s): Nancy A. Lum; James F. Asbrock; Rebekah White; Raymond E. Kelchner; Larry Lum; Le T. Pham; Craig R. McCreight; Mark E. McKelvey; Robert E. McMurray; William J. Forrest; James D. Garnett
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Paper Abstract

Cryogenic space telescopes such as the Space Infrared Telescope Facility (SIRTF) require large-area focal plane arrays (FPAs) with high sensitivity. Such applications set requirements for the readout arrays to simultaneously provide low noise and low power dissipation at very low temperatures. The Hughes Technology Center (HTC) has developed a low-noise 256 X 256-pixel hybrid FPA composed of a PMOS readout array hybridized to an arsenic- doped silicon (Si:As) impurity-band conduction (IBC) detector which is designed to operate below 10 K. The readout unit cell employs a switched source-follower-per-detector (SFD) design where in signals are multiplexed onto four outputs. The detector was processed using high-purity, multilayered epitaxial processing. The readout was processed using the p-channel subset of HTC's CryoCMOS process.

Paper Details

Date Published: 20 October 1993
PDF: 10 pages
Proc. SPIE 1946, Infrared Detectors and Instrumentation, (20 October 1993); doi: 10.1117/12.158664
Show Author Affiliations
Nancy A. Lum, Hughes Technology Ctr. (United States)
James F. Asbrock, Hughes Technology Ctr. (United States)
Rebekah White, Hughes Technology Ctr. (United States)
Raymond E. Kelchner, Hughes Technology Ctr. (United States)
Larry Lum, Hughes Technology Ctr. (United States)
Le T. Pham, Hughes Technology Ctr. (United States)
Craig R. McCreight, NASA Ames Research Ctr. (United States)
Mark E. McKelvey, NASA Ames Research Ctr. (United States)
Robert E. McMurray, NASA Ames Research Ctr. (United States)
William J. Forrest, Univ. of Rochester (United States)
James D. Garnett, Univ. of Rochester (United States)

Published in SPIE Proceedings Vol. 1946:
Infrared Detectors and Instrumentation
Albert M. Fowler, Editor(s)

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