High-speed peristaltic CCD imager with GaAs fet output
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United States of America Patent
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Mar 25, 1997
Issued Date -
N/A
app pub date -
Nov 30, 1994
filing date -
May 10, 1991
priority date (Note) -
Expired
status (Latency Note)
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Abstract
An improved CCD imaging array is disclosed which is capable of operating at 10,000 frames-per-second. The imager consists of an array of 512.times.512 pixels having 16 serial output channels which provides a composite output data rate up to 250 Megasamples/second. The serial output registers are constructed from peristaltic CCDs, each having a GaAs FET output circuit bump-mounted to the silicon substrate. A four-layer pinned photodiode is utilized as the photodetector, and each photodiode has its own antiblooming drain. The antiblooming gates double as an optical shuttering device. Sample-and-hold output circuitry is also provided.
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