Charge-coupled devices with locally widened electrodes

Details Charge-coupled devices with locally widened electrodes Charge-coupled devices with locally widened electrodes

1991-10-22

1992-11-17

James, Andrew J.

Active solid-state devices (e.g., transistors, solid-state diode

Field effect device

Charge transfer device

257222, 257231, 257242, H01L 2978

Patent

active

051648075

ABSTRACT:
In CCD arrangements, such as bidimensional image sensors, it is usual to provide the output register in the form of two (or more) horizontal registers. Via transverse connections between the horizontal registers, charge packets are transported from one horizontal register to the other horizontal register. In order to avoid delays during this transverse transport due to narrow channel effects, the clock electrodes of the first horizontal register adjoining the transverse connections are widened at the expense of adjacent clock electrodes. These widened electrodes may be in the trapezoidal form, as a result of which additional drift fields are induced below these electrodes.

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