Large format hybrid visible silicon focal plane arrays for space- and ground-based astronomy

Details Large format hybrid visible silicon focal plane arrays for space- and ground-based astronomy Large format hybrid visible silicon focal plane arrays for space- and ground-based astronomy

Sep 2004

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004spie.5499..151b&link_type=abstract

Optical and Infrared Detectors for Astronomy. Edited by James D. Garnett and James W. Beletic. Proceedings of the SPIE, Volume 5

Astronomy and Astrophysics

Astronomy

Scientific paper

CMOS-based hybrid silicon focal plane array technology is presented as a high-performance CMOS sensor alternative to CCD technology for future space missions and ground-based telescopes. This paper will discuss the unique performance advantages of the hybrid CMOS arrays, including the very high quantum efficiency from UV to near IR, good spatial resolution at moderate voltage bias, readout commonality with IR detector channels in multi-spectral systems, low noise, low power dissipation, high inherent radiation tolerance, and excellent CMOS functionality afforded by the separately optimized readout circuitry. The ability to retain low noise at high video rates and the fact that CMOS sensors do not suffer the charge transfer efficiency (CTE) degradation of CCDs enable an easy scale-up of CMOS-based FPAs to larger formats without compromising sensor performance. The large hybrid CMOS silicon FPAs up to 2048x2048 format in single chip and 4096x4096 format in mosaic configuration that are demonstrated at Rockwell Scientific will be presented.

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