Output circuit for charged transfer device and having a high det

Details Output circuit for charged transfer device and having a high det Output circuit for charged transfer device and having a high det

1993-04-02

1994-03-15

Ngo, Ngan

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

Field effect device

Charge transfer device

257236, 257249, 377 60, 377 62, 377 63, H01L 2978

Patent

active

052948170

ABSTRACT:
In an output circuit for a charge transfer device, a floating diffusion region is connected to a source side gate electrode of a double-gate read-out field effect transistor having its drain side gate electrode connected to the drain of the read-out transistor itself. Thus, the capacitance between the gate of the read-out transistor connected to the floating diffusion region and the drain of the read-out transistor can be made small, so that the total capacitance of the floating diffusion region is correspondingly reduced, with the result that a high detection sensitivity can be realized.

REFERENCES:
patent: 4646119 (1987-02-01), Kosonocky
patent: 5192990 (1993-03-01), Stevens

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