BACK SIDE ILLUMINATON IMAGE SENSOR AND METHOD FOR MANUFACTURING THE SAME

摘要

A back side illumination image sensor according to an embodiment includes: a device isolation region and a pixel region that are on a front side of a first substrate; a light sensor and a readout circuit that are on the pixel region; an interlayer dielectric layer and a metal line that are on the front side of the first substrate; a second substrate that is bonded to the front side of the first substrate on which the metal line is formed; a pixel isolating dielectric layer that is on the device isolation region at a back side of the first substrate; and a microlens that is on the light sensor at the back side of the first substrate