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Proceedings Paper

HgCdTe 20482 FPA for infrared astronomy: development status
Author(s): Lester J. Kozlowski; Kadri Vural; Scott A. Cabelli; Annie Chi-yi Chen; Donald E. Cooper; Gary L. Bostrup; Craig A. Cabelli; Klaus-Werner Hodapp; Donald N. B. Hall; William E. Kleinhans
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Paper Abstract

The HAWAII-2 is an IR 20482 focal plane array (FPA) that is being developed for next-generation IR astronomy. It will supplant our HAWAII 10242 as the largest high- performance imaging array available for IR astronomy. As with our prior IR sensor, the flip-chip hybrid will consist of a low-capacitance HgCdTe detector array mated to a low- noise CMOS silicon multiplexer via indium interconnects. In order to accommodate reasonable telescope optics and fabrication of the large sophisticated readout using world- class submicron CMOS, the FPA has 18 micrometers pixel pitch. We anticipate > 5 percent yield of defect-free multiplexers using 0.8 micrometers CMOS. The HgCdTe detector arrays will be fabricated on large wafers including sapphire and silicon. Though the first FPAs will have 2.5 micrometers cut-off, the readout will be able to support longer wavelengths. Also reported are the latest 1024 X 1024 FPA results with 2.5 micrometers HgCdTe detectors.

Paper Details

Date Published: 21 August 1998
PDF: 11 pages
Proc. SPIE 3354, Infrared Astronomical Instrumentation, (21 August 1998); doi: 10.1117/12.317323
Show Author Affiliations
Lester J. Kozlowski, Rockwell Science Ctr. (United States)
Kadri Vural, Rockwell Science Ctr. (United States)
Scott A. Cabelli, Rockwell Science Ctr. (United States)
Annie Chi-yi Chen, Rockwell Science Ctr. (United States)
Donald E. Cooper, Rockwell Science Ctr. (United States)
Gary L. Bostrup, Rockwell Science Ctr. (United States)
Craig A. Cabelli, Rockwell Science Ctr. (United States)
Klaus-Werner Hodapp, Univ. of Hawaii/Manoa (United States)
Donald N. B. Hall, Univ. of Hawaii/Manoa (United States)
William E. Kleinhans, Valley Oak Semiconductor (United States)


Published in SPIE Proceedings Vol. 3354:
Infrared Astronomical Instrumentation
Albert M. Fowler, Editor(s)

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