Patent ID: 6157053
Filing Date: 2000-12-05
Classification: H01L

Abstract:
A charge transfer device comprising:(a) a charge transfer channel for transferring signal charges therethrough;(b) a floating diffusion region for accumulating therein charges transferred from said charge transfer channel;(c) a field effect transistor for resetting said floating diffusion region so that said floating diffusion region is at a predetermined potential; and(d) a bias charge input section through which a bias charge is supplied and which is connected to one of said charge transfer channel and said floating diffusion region,said field effect transistor including a first reset gate electrode and a resect drain,a reset channel located below said first reset gate electrode being designed to receive a potential lower than a potential of said reset drain when said floating diffusion region is reset in the case that charges to the transferred are electrons, and a potential higher than a potential of said reset drain when said floating diffusion region is reset in the case that charges to be transferred are holes.