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High-performance backside-illuminated photodiodes have been fabricated for the first time from InAs1−xSbx-InAs heterostructures prepared by liquid-phase-epitaxy technique. The peak wavelength can be tuned compositionally from 3.1 to over 7.0 μm at 77 K. The half-width of the spectral responses as narrow as 1760 Å (at 4.0 μm) have been achieved. Internal quantum efficiencies of 90% and zero-bias-resistance–area products of 2×107 Ω cm2 have been obtained at 77 K.

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DRS (formerly Boeing) has completed the development and demonstration of a 25-micron pixel size 640x480 VO microbolometer uncooled JR focal plane product, the U6000. The U6000 incorporates several advanced features to enhance its performance and functional capabilities. A parallel six-bit "Smart-Sensor" data bus provides external command and data interface capability between the sensor and the focal plane. This includes on chip 6-bit pixel offset correction, detector bias selection and regulation, programmable signal gain, interlaced and non-interlaced output video format selection, signal integration time selection and input referred global offset selection capabilities. The U6000 also includes a high resolution on-chip temperature measurement that is incorporated into the single channel output video during horizontal blanking. This paper describes the U6000's functional capabilities, and provides U6000 functional validation and performance data.