Schottky-barrier image sensor with 100% fill factor

Walter F. Kosonocky; Thomas S. Villani; Frank V. Shallcross; Grazyna M. Meray; John J. O'Neill III

doi:10.1117/12.21717

1 September 1990 Schottky-barrier image sensor with 100% fill factor

Walter F. Kosonocky, Thomas S. Villani, Frank V. Shallcross, Grazyna M. Meray, John J. O'Neill III

Proceedings Volume 1308, Infrared Detectors and Focal Plane Arrays; (1990) https://doi.org/10.1117/12.21717
Event: 1990 Technical Symposium on Optics, Electro-Optics, and Sensors, 1990, Orlando, FL, United States

Abstract

A new concept, the Direct Schottky Injection (DSI), is described for a three-dimensional construction of infrared imagers with a continuous Schottky-barrier-detector surface on one side of a thinned (10 to 25 microns) silicon substrate and p-type buried-channel CCD readout structure on the other side. The DSI structure provides a 100-percent fill factor, a large charge-handling capacity, and a high-density pixel design. The construction and operation are described for DSI imagers with frame-transfer CCD (FT-CCD) and interline-transfer CCD(IT-CCD) readout. The operation of the IT-CCD DSI imager was demonstrated with a 128 x 128 focal plane array (FPA) with 50 x 50-micron pixels.

Citation Download Citation

Walter F. Kosonocky, Thomas S. Villani, Frank V. Shallcross, Grazyna M. Meray, and John J. O'Neill III "Schottky-barrier image sensor with 100% fill factor", Proc. SPIE 1308, Infrared Detectors and Focal Plane Arrays, (1 September 1990); https://doi.org/10.1117/12.21717

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