Solid-state image sensor

Details Solid-state image sensor Solid-state image sensor

1986-09-04

1989-07-25

Macon, Robert S.

H01L 2978

Patent

active

048518905

ABSTRACT:
A solid-state image sensor having a plurality of unit cells, each of which comprises a photosensitive area and a CCD register for the transfer of a signal charge generated in the photosensitive area. Both the photosensitive area and the CCD register are disposed on a first layer, having different polarities than the charging polarity of the signal charge, which is disposed on a substrate having the same polarity as the signal charge. The CCD register is underlaid by a second layer having the same polarity as the first layer and the second layer contains a higher impurity concentration than the first layer.

REFERENCES:
patent: 4498013 (1985-02-01), Kuroda et al.
"An Interline CCD Image Sensor with Reduced Image Lag", 8093 IEEE Transactions on Electron Devices, ED-31 (1984) Dec., No. 12, New York, USA.
"A 580.times.500 Element CCD Imager with a Shallow Flat P Well", 8172 IEEE International Solid-State Circuits Conference, 28 (1985) Feb., 32nd Conf., Coral Gables, Fla., USA.

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