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Proceedings Paper

Requirements and design considerations of UV and x-ray detectors for astronomical purposes
Author(s): Melville P. Ulmer
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Paper Abstract

Since our previous review, new developments have occurred which make it interesting to compare wide bandgap semiconductors with low temperature detectors. We compare the strengths and weaknesses of each of these devices. We show that there is a need for both types of devices. Furthermore, single or small-array versions of the low temperature devices have been shown to work as single photon-counting devices. This gives the low temperature devices a distinct advantage over wide bandgap detectors. The ability to operate at room temperature and to be able to use standard indium bump bonding techniques to allow for relatively routine fabrication of 500 X 500 pixel formats should, however, provide impetus to further development of wide bandgap semiconductor devices.

Paper Details

Date Published: 15 April 1997
PDF: 8 pages
Proc. SPIE 2999, Photodetectors: Materials and Devices II, (15 April 1997); doi: 10.1117/12.271195
Show Author Affiliations
Melville P. Ulmer, Northwestern Univ. (United States)


Published in SPIE Proceedings Vol. 2999:
Photodetectors: Materials and Devices II
Gail J. Brown; Manijeh Razeghi, Editor(s)

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