Television – Camera – system and detail – Solid-state image sensor
Patent
1997-06-20
2000-10-31
Ho, Tuan
Television
Camera, system and detail
Solid-state image sensor
348241, 250214R, 2502081, H04N 5335
Patent
active
061410500
ABSTRACT:
An image sensor circuit which employs a photodiode in conjunction with a charge transfer mechanism. By employing the photodiode, at least a portion of the light sensed does not pass through a layer of polysilicon, and so is not prevented from reaching the sensing area by the polysilicon. The image sensor circuit of the invention is made up of device structures readily available in standard CMOS process technologies Advantageously, image sensors embodying the invention show substantially improved quantum efficiency for short wavelength light over the prior art sensors. In addition, image sensors embodying the invention display improved dark current uniformity, thus improving yield.
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Ackland Bryan David
Inglis David Andrew
Loinaz Marc J.
Ho Tuan
Lucent Technologies - Inc.
Rosenthal Eugene J.
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