Multiplication register for amplifying signal charge

Details Multiplication register for amplifying signal charge Multiplication register for amplifying signal charge

2005-04-07

2009-11-17

Luu, Thanh X (Department: 2878)

Radiant energy

Photocells; circuits and apparatus

Photocell controlled circuit

C377S057000, C348S311000, C257S223000

Reexamination Certificate

active

07619201

ABSTRACT:
A multiplication register for use in solid state imaging apparatus, such as a CCD, is described. The multiplication register has a gain element22comprising a plurality of register electrodes30, 32, 34, and36, for transferring charge along a change transfer channel, and for amplifying the charge. Channel edge defining electrodes24and26are disposed either side of the channel28, in place of channel stops, removing the effects of spurious charges generated in the channel in the regions of amplification. The provision of the channel edge defining electrodes24and26allows the resulting structure of the channel electrodes to be made simpler, and means that a structure can be provided for clocking and amplifying charge in either direction along the channel.

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International Search Report issued in PCT/GB2005/001354 dated Apr. 4, 2005.
Jaroslav Hynecek (1992) “CCM-A New Low-Noise Charge Carrier Multiplier Suitable for Detection of Charge in Small Pixel CCD Image Sensors” IEEE Transactions on Electron Devices. vol. 39, No. 8 1972-1975, Aug. 1992.
United Kingdom Search Report, dated Sep. 10, 2004, for counterpart British Application No. GB0407926.5.

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