IMAGE SENSOR

摘要

PURPOSE: An image sensor is provided to improve image quality by restraining crosstalk without the deterioration of a ratio of an optical sensing area to an overall area of the image sensor. CONSTITUTION: A plurality of optical detecting devices(121, 122, 123) generates an electric signal corresponding to incident light. An insulating layer(140) is formed on the back side(110b) of a semiconductor substrate(110). The insulating layer comprises a plurality of light blocking area(141a, 142a) formed on an area between a plurality of optical detecting devices.