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256 x 256 PACE-1 PV HgCdTe focal plane arrays for medium and short wavelength infrared applicationsThe development of two 256 by 256 hybrid HgCdTe focal plane array (FPA) families is described, and their performance is discussed. The hybrid FPAs employ a PV HgCdTe detector array and custom Si CMOS readouts. The PACE-1 process was used to fabricate the detectors, whereby the liquid phase epitaxial growth of HgCdTe occurs on sapphire substrates buffered by a layer of CdTe. The performance characteristics of the detector arrays are given. A tactical 256 by 256 CMOS readout is tested, in which a high functional yield was achieved. Updated test results are given for a 256 by 256 readout circuit developed for use in an orbital replacement instrument for the Hubble Space Telescope. The characterizations of several MWIR and SWIR FPAs were thorough and shown to be reliable. The pixel yield, maximum FPA responsivity nonuniformity, and SWIR FPA read noise for the tests are given. The high contrast and insignificant fixed pattern noise of the imagery from the MWIR 256 by 256 FPA are emphasized. These qualities were obtained when the device was operating at 80 k and utilizing f/2 optics with an 8-in. focal length and a 4.4 micron high pass filter.
Document ID
19910052120
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Kozlowski, L. J.
(Rockwell International Science Center Thousand Oaks, CA, United States)
Vural, K.
(Rockwell International Science Center Thousand Oaks, CA, United States)
Johnson, V. H.
(Rockwell International Science Center Thousand Oaks, CA, United States)
Chen, J. K.
(Rockwell International Science Center Thousand Oaks, CA, United States)
Bailey, R. B.
(Rockwell International Science Center Thousand Oaks, CA, United States)
Date Acquired
August 15, 2013
Publication Date
January 1, 1990
Subject Category
Instrumentation And Photography
Meeting Information
Meeting: Infrared Detectors and Focal Plane Arrays
Location: Orlando, FL
Country: United States
Start Date: April 18, 1990
End Date: April 19, 1990
Accession Number
91A36743
Funding Number(s)
CONTRACT_GRANT: NAS5-30008
Distribution Limits
Public
Copyright
Other

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