High-performance PtSi linear and area focal plane arrays

Bob Maddoux; Steve Burt

doi:10.1117/12.21747

1 September 1990 High-performance PtSi linear and area focal plane arrays

Bob Maddoux, Steve Burt

Proceedings Volume 1308, Infrared Detectors and Focal Plane Arrays; (1990) https://doi.org/10.1117/12.21747
Event: 1990 Technical Symposium on Optics, Electro-Optics, and Sensors, 1990, Orlando, FL, United States

Abstract

The operation, performance, and applications are set forth for linear and area focal plane arrays which use PtSi Schottky barrier diodes to image in the 1 to 5.5 micron spectral range. Two linear FPAs, with pixels spaced on 25 micron centers, are considered. A digital scan readout is used in these arrays. A discussion of a 128 by 128 element PtSi FPA follows, where a MOS/CTD readout structure is employed. The digital shift register addresses diode rows one by one due to the parallel connection of the MOS multiplexer switches in this device. Two bucket brigade charge transfer registers are utilized for signal readout. Lastly, a high fill factor, low noise 512 by 512 PtSi FPA is discussed, which uses a new line-addressed charge-accumulation (LACA) CCD in an interline transfer configuration and a multiple-readout horizontal register. The digital scan readout allows high sensitivity and signal levels. The second device and the LACA structure permit a high fill factor and charge handling capacity. The lower cost and higher resolution of the latter devices are underscored, and applications for all the FPAs are listed.

Citation Download Citation

Bob Maddoux and Steve Burt "High-performance PtSi linear and area focal plane arrays", Proc. SPIE 1308, Infrared Detectors and Focal Plane Arrays, (1 September 1990); https://doi.org/10.1117/12.21747

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