Two-transistor pixel with buried reset channel and method of formation
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United States of America Patent
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Jun 1, 2004
Grant Date -
Mar 4, 2004
app pub date -
Aug 29, 2002
filing date -
Aug 29, 2002
priority date (Note) -
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Abstract
A two-transistor pixel of an imager has a reset region formed adjacent a charge collection region of a photodiode and in electrical communication with a gate of a source follower transistor. The reset region is connected to one terminal of a capacitor which integrates collected charge of the photodiode. The charge collection region is reset by pulsing the other terminal of the capacitor from a higher to a lower voltage.
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