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Proceedings Paper

Recent Progress In Lattice Matched Substrates For HgCdTe EPITAXY
Author(s): Carl J. Johnson
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Paper Abstract

High quality HgCdTe epitaxy is essential to the development and producibility of infrared focal plane arrays (IRFPA' s) for emerging strategic and tactical aerospace applications. The lattice mismatch between an epitaxial layer and its substrate is known to effect various layer characteristics, especially morphology and crystallinity, which impact downstream device fabrication yields. Lattice matching is thus an important issue in the continuing development of large scale HgCdTe epitaxy. This paper reviews recent progress in the development of the HgCdTe lattice matching alloys CdZnTe and CdTeSe. Improvements in growth methods, lattice parameter control, substrate size, stoichiometry control and crystallinity are presented.

Paper Details

Date Published: 12 September 1989
PDF: 14 pages
Proc. SPIE 1106, Future Infrared Detector Materials, (12 September 1989); doi: 10.1117/12.960629
Show Author Affiliations
Carl J. Johnson, II-VI Incorporated (United States)

Published in SPIE Proceedings Vol. 1106:
Future Infrared Detector Materials
Jan W. Baars; Randolph E. Longshore, Editor(s)

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