Large scientific 2-D arrays for the 1-5 micron region

Details Large scientific 2-D arrays for the 1-5 micron region Large scientific 2-D arrays for the 1-5 micron region

Dec 1992

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992esasp.356..129f&link_type=abstract

In ESA, Proceedings of an ESA Symposium on Photon Detectors for Space Instrumentation p 129-135 (SEE N94-15025 03-19)

Astronomy and Astrophysics

Astronomy

2

Arrays, Astronomy, Focal Plane Devices, Infrared Detectors, Technology Assessment, Indium Antimonides, Mercury Cadmium Tellurides, Platinum Compounds, Research And Development, Silicides

Scientific paper

The performances, advantages, and disadvantages of three detector technologies, which have produced devices of interest to astronomy and other scientific users, are compared: platinum silicide (PtSi), mercury cadmium telluride (MCT), and indium antimonide (InSb). All high performance arrays use a Source Follower per Detector (SFD) type of multiplexer readout because CCDs (Charge Coupled Devices) do not perform well at low operating temperatures. In addition, hybrid indium bump technology is used by all arrays for fabrication, yield, and performance reasons. The evolution of the present focal planes and where the technology is headed are discussed, covering the operation of the various technologies, and data on the performance of several of the new 256 by 256 focal planes is presented. Evaluation procedures used for astronomy applications and techniques for low noise operation are also discussed. The future trends in even larger focal planes and the requirements for the next generation of arrays are discussed.

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