Bipolar gate charge coupled device with clocked virtual phase

摘要

The charge coupled device cell has a semiconductor layer 20 of a first conductivity type, a buried channel 22 of a second conductivity type on the semiconductor layer 20, a first virtual gate 24 in the buried channel 22, the first virtual gate is switched between at least two potential levels, and a first bipolar gate 42 in the buried channel 22 adjacent the first virtual gate 24.