CMD and CMD-carrying CCD device

Details CMD and CMD-carrying CCD device CMD and CMD-carrying CCD device

2005-03-01

2005-03-01

Prenty, Mark V. (Department: 2822)

Electrical pulse counters, pulse dividers, or shift registers: c

Charge transfer device

Particular input or output means

C377S057000, C257S246000, C257S236000

Reexamination Certificate

active

06862333

ABSTRACT:
This invention controls the signal amplification rate in a simple way with high precision in a CMD or CMD-carrying CCD device. CMD12has plural sections, such as M sections (U1-UM), each of which is a CMD unit U that can perform a charge multiplication operation, set in series. Each section of CMD unit Ui has plural (such as 4) electrodes G1, G2, G3, G4set in a row via an insulating film, such as silicon oxide film100, on a silicon insulating film. Among driving voltages P1, P2, P3, P4applied on the electrodes G1, G2, G3and G4, P1and P2are applied in the same cycle as the transfer clock, P4for impact ionization is applied in intermittent cycles with respect to P1and P2, and P3is applied as a DC voltage at a prescribed level.

REFERENCES:
patent: 5337340 (1994-08-01), Hynecek
patent: 6278142 (2001-08-01), Hynecek
patent: 6444968 (2002-09-01), Burt et al.
patent: 20030223531 (2003-12-01), Kashima et al.

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