Two-dimensional CCD image sensor free from vertical black streak

Details Two-dimensional CCD image sensor free from vertical black streak Two-dimensional CCD image sensor free from vertical black streak

1996-10-22

1999-07-06

Garber, Wendy

Television

Camera, system and detail

Solid-state image sensor

348316, 257232, H04N 314, H01L 27148

Patent

active

059203463

ABSTRACT:
In a two-dimensional CCD image sensor, vertical transfer channels (6) are arranged to receive charge packets from a matrix array of photodiodes (1), and row electrodes (3) are connected to the vertical transfer channels for shifting the charge packets row by row along the vertical transfer channels. A horizontal transfer channel (14) has stages for receiving charge packets from corresponding vertical transfer channels (6). Each stage of the horizontal transfer channel is formed with first and second sets of a storage region (A1; A2) and two barrier regions (B1, C1; B2, C2) each. For each stage, a group of first, second, third and fourth adjoining electrodes (27, 28, 29, 30) is provided, the first and second electrodes being connected to receive a first phase clock pulse and the third and fourth electrodes being connected to receive a second, opposite phase clock pulse. The first and third electrodes (27-1, 29-1) respectively overlie the storage regions of the first and second sets (A1, A2), and the second and fourth electrodes (28-1, 30-1) respectively overlie the barrier regions of the first and second sets (B1, C1; B2, C2). In order to eliminate vertical black streaks, the barrier regions (B1, C1) of the first set are connected to a corresponding vertical transfer channel (6-1) to exclusively receive charge packets therefrom.

REFERENCES:
patent: 4669100 (1987-05-01), Slotboom et al.
patent: 4987466 (1991-01-01), Shibata et al.
patent: 5323034 (1994-06-01), Furumiya
patent: 5428231 (1995-06-01), Tanaka et al.
patent: 5589698 (1996-12-01), Nakashiba

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