Buffered direct injection multiplexer for improved uniformity and yield in infrared cameras

Michael A. Blessinger

doi:10.1117/12.178476

23 June 1994 Buffered direct injection multiplexer for improved uniformity and yield in infrared cameras

Michael A. Blessinger

Proceedings Volume 2226, Infrared Readout Electronics II; (1994) https://doi.org/10.1117/12.178476
Event: SPIE's International Symposium on Optical Engineering and Photonics in Aerospace Sensing, 1994, Orlando, FL, United States

Abstract

In order to improve the uniformity and yield of the focal plane arrays being used in Cincinnati Electronics infrared camera systems, the multiplexer is being upgraded to include a feedback enhancing buffer amplifier in its unit cell. A test die containing variations of a buffered direct injection circuit, along with some of its constituent parts, has been fabricated and tested. The test results have been compared with predicted performance from SPICE modeling of the circuit, and generally good agreement has been obtained. The results indicate with only a modestly sized buffer amplifier, sufficient performance improvement can be obtained to significantly improve the device yield for the infrared camera focal plane array.

Citation Download Citation

Michael A. Blessinger "Buffered direct injection multiplexer for improved uniformity and yield in infrared cameras", Proc. SPIE 2226, Infrared Readout Electronics II, (23 June 1994); https://doi.org/10.1117/12.178476

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