244 X 400 element hybrid platinum silicide Schottky focal plane array

Details 244 X 400 element hybrid platinum silicide Schottky focal plane array 244 X 400 element hybrid platinum silicide Schottky focal plane array

Sep 1990

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990spie.1308...99e&link_type=abstract

IN: Infrared detectors and focal plane arrays; Proceedings of the Meeting, Orlando, FL, Apr. 18, 19, 1990 (A91-36726 15-35). Bel

Computer Science

Performance

Focal Plane Devices, Infrared Detectors, Schottky Diodes, Antireflection Coatings, Image Resolution, Platinum Compounds, Silicides

Scientific paper

The requirements, design, fabrication, and test results are presented for a high-density hybrid FPA based on platinum silicide IR detector technology. The hybrid Schottky FPA is intended to optimize detector and readout design and processing, achieve optimal fill factors, and reduce cell size. Schottky barrier detectors are employed in arrays of 24 micron pixel spacings, in a 244 by 400 array format. The readout and detector structure are detailed, as well as the fast-settling circuitry, and a fill factor of 84 percent is shown. The modeling used to predict optical performance is set forth, indicating detector response and noise level for specified conditions. The preamplified output of each detector was sampled in a performance test consisting of irradiation by an extended blackbody IR source. Results are presented for responsivity, RMS noise, dc uniformity and noise equivalent temperature distance. Sensitivity levels in low background conditions are shown to be suitable. The design permits low-cost readout fabrication and extension to larger arrays.

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