Optimization of cryogenic CMOS processes for sub-10-kelvin applications

Robert M. Glidden; Steven C. Lizotte; James S. Cable; Larry W. Mason; Chipaul Cao

doi:10.1117/12.60492

1 July 1992 Optimization of cryogenic CMOS processes for sub-10°K applications

Robert M. Glidden, Steven C. Lizotte, James S. Cable, Larry W. Mason, Chipaul Cao

Proceedings Volume 1684, Infrared Readout Electronics; (1992) https://doi.org/10.1117/12.60492
Event: Aerospace Sensing, 1992, Orlando, FL, United States

Abstract

Below approximately 40°K, conventional CMOS technologies show radical departures from room temperature behavior and classical theory, confounding attempts to design readout circuits that have desirable and predictable behavior. Though the effects often seem difficult to explain, they are in all cases due to the effects of carrier freezeout. We have extensively investigated the device properties of CMOS PETs at temperatures very close to absolute zero and conducted a series of process optimizations designed to overcome anomalies that dominate the device behavior. The resulting technology has been used to build readouts for very long wavelength extrinsic silicon detectors, including staring arrays of significant complexity (256x256 pixels). Large die sizes (450 mils) have been produced with high yields (in excess of 50 percent) using this process.

Citation Download Citation

Robert M. Glidden, Steven C. Lizotte, James S. Cable, Larry W. Mason, and Chipaul Cao "Optimization of cryogenic CMOS processes for sub-10°K applications", Proc. SPIE 1684, Infrared Readout Electronics, (1 July 1992); https://doi.org/10.1117/12.60492

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