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Proceedings Paper

Investigation of surface-related electrical crosstalk in Hg1-xCdxTe photodiode arrays
Author(s): Henry X. Yuan; Fei Ming Tong
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Paper Abstract

A theoretical investigation of electrical crosstalk induced by surface channel was made for Hg1-xCdxTe n-on-p photodiode arrays, by using a model based on diode surface channel current theory. An analytic expression of crosstalk, which is an exponential function of the inversion layer charge density, element spacing, p-n junction resistance-area product, and surface electron mobility, was deduced. The dependence of crosstalk on some related device parameters, such as the positive fixed interface charge density, etc., was calculated and discussed. The results show that better control of the substrate surface potential, as well as careful choice of some device parameters, is significant for reducing electrical crosstalk.

Paper Details

Date Published: 10 December 1992
PDF: 8 pages
Proc. SPIE 1735, Infrared Detectors: State of the Art, (10 December 1992); doi: 10.1117/12.138615
Show Author Affiliations
Henry X. Yuan, Shanghai Institute of Technical Physics (China)
Fei Ming Tong, Shanghai Institute of Technical Physics (China)

Published in SPIE Proceedings Vol. 1735:
Infrared Detectors: State of the Art
Wagih H. Makky, Editor(s)

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