Image sensor device of the frame transfer type

Details Image sensor device of the frame transfer type Image sensor device of the frame transfer type

1989-08-04

1991-04-02

James, Andrew J.

357 231, 357 30, 357 32, H01L 2978, H01L 2701, H01L 2900, H01L 2714

Patent

active

050050621

ABSTRACT:
An image sensor device of the frame transfer type comprises a substrate having a first region (10) of a first n type, a second region (12) of the opposite p-type and charge transfer channels (15) as well as an arrangement of electrodes (1A . . . 1D) of charge transfer.
A photosensitive layer (50) is arranged on the surface (19) of the substrate and has window regions (100, 200) in electrical contact with the channels (15) through windows (40) provided in the arrangement of electrodes, for example through electrodes (1B, 1D). Insulating strips (24) and conductive strips (30) serve to prevent the drift from one window region to the other of charges to be transferred and to evacuate the charges of a sign opposite to that of the charges to be transferred.

REFERENCES:
patent: 4618874 (1986-10-01), Yamada
patent: 4851887 (1989-07-01), Hagiwara
patent: 4851890 (1989-07-01), Miyatake

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