Method of making a charge coupled device

Details Method of making a charge coupled device Method of making a charge coupled device

1992-11-25

1994-04-12

Thomas, Tom

Fishing, trapping, and vermin destroying

437 30, 437979, H01L 2176

Patent

active

053025431

ABSTRACT:
A charge coupled device includes a second conductivity type first horizontal channel in a first conductivity type semiconductor substrate, a second conductivity type second horizontal channel in the substrate at a predetermined distance from the first horizontal channel, and a second conductivity type transfer channel connecting the first horizontal channel with the second horizontal channel to enable transfer of charges from the first horizontal channel to the second horizontal channel. The pinning potential of the transfer channel is larger in absolute value than the pinning potential of the first and second horizontal channels, and the gate voltage pinning the transfer channel is smaller in absolute value than the gate voltage pinning the first and second horizontal channels. Therefore, the charges in the first horizontal channel can be transferred to the transfer channel by a gate voltage pinning the horizontal channel and the charges can be transferred from the first horizontal channel to the second horizontal channel by clock signals.

REFERENCES:
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patent: 4035906 (1977-07-01), Tasch et al.
patent: 4065847 (1978-01-01), Borel et al.
patent: 4216574 (1980-08-01), Feist
patent: 4694316 (1987-09-01), Chabbal
patent: 4742016 (1988-05-01), Rhodes

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