HIGH SPEED SOLID-STATE IMAGE PICKUP DEVICE

摘要

PURPOSE: A high speed solid-state image pickup device is provided to reduce an image noise generated in the output display picture of an image sensor by suppressing a leak current after the end of series of noise removing operation in the case of reading for each horizontal line at the CMOS image sensor. CONSTITUTION: A device includes plural signal preserving areas(25-i) for respectively preserving signals respectively read from unit cells(13) of the same line selected in an image pickup area(1) to plural vertical signal lines(18-i), and plural horizontal selecting transistors(23-i) for successively reading signals preserved in the respective signal preserving areas and transferring them to a horizontal signal line(26). While successively reading the signals out of the signal preserving areas at least, one of the drain source of a transistor(19) electrically connected to a signal route between vertical and horizontal signal lines is set into inverse bias state in respect to a substrate area.