Charge storage device having shared conductors

Details Charge storage device having shared conductors Charge storage device having shared conductors

1995-03-03

1996-11-05

Westin, Edward P.

Radiant energy

Photocells; circuits and apparatus

Photocell controlled circuit

358483, 348311, H01L 2700

Patent

active

055720153

ABSTRACT:
The charge storage elements (3) of an array (2) are arranged in columns and rows and each column is coupled to an associated column conductor (4). Each storage element (3) in a row is coupled to an associated second conductor by a first rectifying element (D1) and to an associated third conductor by a second rectifying element (D2). Each row shares its second and third conductors (5a, 5b, 6a, 6b) with any adjacent rows. One of the two conductors of each row forms a row conductor (5a, 5b) and the other (6a, 6b) one of first and second reference conductors (6a and 6b). Adjacent row conductors (5a, 5b) are separated by a reference conductor (6a or 6b). Each first reference conductor (6a) is separated from any other first reference conductor (6a) by two row conductors (5a, 5b) and a second reference conductor (6b). The rectifying elements (D1' and D2') associated with a respective row conductor (5a, 5b) are oppositely oriented to the rectifying elements (D1" and D2") associated with any adjacent row conductors (5b, 5a). In operation, first and second different reference voltages (V.sub.- and V.sub.+) are applied to the first and second reference conductors (6a and 6b) respectively and voltages are applied to the row conductors (5a and 5b) for enabling only the rectifying elements of a selected row to be forward-biassed to allow charge stored at the storage elements (3) of the selected row to be read.

REFERENCES:
patent: 4541015 (1985-09-01), Itoh et al.
patent: 4565928 (1986-01-01), Yamamoto et al.
patent: 4948966 (1990-08-01), Arques et al.
patent: 5376782 (1994-12-01), Ikeda et al.
patent: 5410349 (1995-04-01), Tanigawa et al.
patent: 5426292 (1995-06-01), Bird et al.

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