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Proceedings Paper

Displacement damage in Si imagers for space applications
Author(s): Cheryl J. Dale; Paul W. Marshall
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Paper Abstract

Particle-induced displacement damage degrades performance parameters in state-of-the-art solid state imagers due to charge transfer inefficiency, increased dark current, and dark current spikes. This paper reviews some recent radiation damage measurements and discusses imager degradation in the context of a general understanding of how displacement damage alters semiconductor properties. An approach to predict the response of a sensor to a given space environment and shielding configuration is presented and the authors briefly discuss other displacement damage concerns such as secondary neutron production in shielding. Using an example based on limited experimental input, the authors demonstrate how higher (10 MeV) energy protons are responsible for over 90 of the damage in heavily shielded imager applications.

Paper Details

Date Published: 1 July 1991
PDF: 17 pages
Proc. SPIE 1447, Charge-Coupled Devices and Solid State Optical Sensors II, (1 July 1991);
Show Author Affiliations
Cheryl J. Dale, Naval Research Lab. (United States)
Paul W. Marshall, Naval Research Lab. and Sachs/Freeman Associates (United States)

Published in SPIE Proceedings Vol. 1447:
Charge-Coupled Devices and Solid State Optical Sensors II
Morley M. Blouke, Editor(s)

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