Charge transfer imaging devices

Details Charge transfer imaging devices Charge transfer imaging devices

1972-08-30

1978-04-18

Hecker, Stuart N.

Static information storage and retrieval

Radiant energy

Semiconductive

307221D, 357 24, 365183, G11C 1132, G11C 1304, G11C 1928

Patent

active

040854566

ABSTRACT:
Line imaging and area imaging devices are described which employ the concept of storage and transfer of charge carriers in a semiconductor medium by the application of appropriate potentials to electrodes disposed above the medium. The devices are characterized by two arrays of electrodes, one functioning as an optical sensing array and the other as a storage and readout array. Charge carriers are collected in the medium under the metal electrodes of the sensing array in proportion to incident light. This information is rapidly transferred to the storage and readout array by sequentially biasing series of electrodes of the two arrays. The information may then be read out of the array without smearing while the sensing array continues to integrate. The structure includes means for preventing cross-coupling and maintaining transfer efficiency for small area electrodes.

REFERENCES:
patent: 3390273 (1968-06-01), Weckler
patent: 3621283 (1971-11-01), Teer
patent: 3643106 (1972-02-01), Berwin et al.
patent: 3654499 (1972-04-01), Smith
patent: 3678347 (1972-07-01), Tulp et al.
patent: 3683193 (1972-08-01), Weimer

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