GLOBAL SHUTTER IMAGE SENSOR, AND IMAGE PROCESSING SYSTEM HAVING THE SAME

摘要

A global shutter image sensor according to an exemplary embodiment of the present inventive concepts includes a semiconductor substrate including a first surface and a second surface, a photo-electric conversion region formed in the semiconductor substrate, a storage diode formed in a vicinity of the photo-electric conversion region in the semiconductor substrate, a drain region formed above the photo-electric conversion region in the semiconductor substrate, a floating diffusion region formed above the storage diode in the semiconductor substrate, an overflow gate transferring first charges from the photo-electric conversion region to the drain region, a storage gate transferring second charges from the photo-electric conversion region to the storage diode, and a transfer gate transferring the second charges from the storage diode to the floating diffusion region. The overflow gate, the photo-electric conversion region, the storage gate, the storage diode, the transfer gate, and the floating diffusion region are formed in a row.

主权项

1. A global shutter image sensor, comprising:
a semiconductor substrate including a first surface and a second surface; a photo-electric conversion region in the semiconductor substrate; a storage diode in the semiconductor substrate adjacent the photo-electric conversion region; a drain region adjacent the photo-electric conversion region in the semiconductor substrate; a floating diffusion region adjacent the storage diode in the semiconductor substrate; an overflow gate to transfer first charges from the photo-electric conversion region to the drain region; a storage gate to transfer second charges from the photo-electric conversion region to the storage diode; and a transfer gate to transfer the second charges from the storage diode to the floating diffusion region, wherein the overflow gate, the photo-electric conversion region, the storage gate, the storage diode, the transfer gate, and the floating diffusion region are in a same row.