Mercury Cadmium Telluride Hybrid Mosaic Focal Planes

T. Koehler; R. Martineau,; T. Wong; R. Rotolante

doi:10.1117/12.959317

18 February 1981 Mercury Cadmium Telluride Hybrid Mosaic Focal Planes

T. Koehler, R. Martineau,, T. Wong, R. Rotolante

Proceedings Volume 0244, Mosaic Focal Plane Methodologies I; (1981) https://doi.org/10.1117/12.959317
Event: 24th Annual Technical Symposium, 1980, San Diego, United States

Abstract

A unique process for fabricating HgCdTe photodiodes directly on a variety of substrate materials has been developed. This process, which can achieve fill factors in excess of 90%, has the advantages of minimal thermal mismatch, less than 1% crosstalk and scaling to large array sizes. This structure consists of thin, fully delineated HgCdTe detector ele-ments bonded to a substrate which contains CCD's or individual lead-outs for each detector. The junctions are connected with a common grid electrode. D* (4.5μm) of 1.3 x 10¹⁰cmHz²/w has been achieved in 4 x 4 element arrays fabricated directly on silicon substrates. These arrays have immediate applications in mosaic sizes up to 4000 detectors and future development potential of 128 x 128 electronically scanned focal planes.

Citation Download Citation

T. Koehler, R. Martineau,, T. Wong, and R. Rotolante "Mercury Cadmium Telluride Hybrid Mosaic Focal Planes", Proc. SPIE 0244, Mosaic Focal Plane Methodologies I, (18 February 1981); https://doi.org/10.1117/12.959317

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