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Proceedings Paper

Uncooled infrared focal plane producibility improvements at DRS
Author(s): Philip E. Howard; John Elwood Clarke; Richard D. Costa; Adrian C. Ionescu; Chuan C. Li
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Paper Abstract

DRS has been conducting several significant ongoing efforts to improve the producibility of its uncooled IR focal plane products. Those efforts are described in this paper. First, pixel dimensions are being reduced by a factor of two or mroe, while maintaining NETD performance levels fully comparable to that of the previous standard approximately 50-micron pixel size. The results for a given array size is smaller die size and mroe die per wafer. Second, DRS is transitioning UIRFPA production from its 5-inch wafer diameter process facility in Anaheim, CA to its 6-inch wafer diameter process facility in Dallas, TX, which results in more die per wafer and in enhanced wafer throughput capacity. Furthermore, the Dallas UFPA production facility is being tooled for a smooth future transition to 8-inch wafer processing. Third, a new ceramic UIRFPA vacuum package has been developed, which has lower material cost, fewer parts and assembly operations, and is lighter significantly weight than the current standard metal package. Since packaging is inherently the most expensive part of UIRFPA manufacture, packaging producibility improvements can provide significant cost leverage. Fourth, DRS is developing a batch-mode UIRFPA vacuum bake and sealign system, which will achieve significant throughput capacity gains, reduce touch labor requirements, and reduce production cycle times.

Paper Details

Date Published: 23 January 2003
PDF: 8 pages
Proc. SPIE 4820, Infrared Technology and Applications XXVIII, (23 January 2003); doi: 10.1117/12.451995
Show Author Affiliations
Philip E. Howard, DRS Sensors & Targeting Systems, Inc. (United States)
John Elwood Clarke, DRS Sensors & Targeting Systems, Inc. (United States)
Richard D. Costa, DRS Sensors & Targeting Systems, Inc. (United States)
Adrian C. Ionescu, DRS Sensors & Targeting Systems, Inc. (United States)
Chuan C. Li, DRS Sensors & Targeting Systems, Inc. (United States)

Published in SPIE Proceedings Vol. 4820:
Infrared Technology and Applications XXVIII
Bjorn F. Andresen; Gabor F. Fulop; Marija Strojnik, Editor(s)

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