Operating circuitry for semiconductor charge coupled devices

Details Operating circuitry for semiconductor charge coupled devices Operating circuitry for semiconductor charge coupled devices

G - Physics

11

C

352/82.2

G11C 11/40 (2006.01) G11C 19/28 (2006.01) G11C 27/04 (2006.01) H01L 29/768 (2006.01)

Patent

CA 1089986

OPERATING CIRCUITRY FOR SEMICONDUCTOR CHARGE COUPLED DEVICES Abstract of the Disclosure Operating circuitry for linear charge launching, non- destructive weighting and non-destructive charge sensing for Charge Coupled Devices (CCD) employs electronic integrating circuitry at the input and output node terminals of the CCD. Feedback circuitry within the integrating circuitry aids in linearizing the signals, in eliminating the non-linear capacitance effect of the depletion regions, and in freeing the design from device parameter variations such as elec- trode area and absolute values of threshold potential and thickness of insulating layer. The circuitry is adaptable to most conventional CCD and is readily made up of conven- tional resistance and capacitance elements, of conventional comparing circuits such as differential amplifying or signal repeating circuits, and of conventional summing circuitry.

268096

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