Patent ID: 11881496
Assignee: SAMSUNG ELECTRONICS CO., LTD.
Field: Semiconductors (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
1. An image sensor comprising:
a substrate; and
a pixel separation pattern disposed in the substrate and interposed between a plurality of unit pixels,
wherein the plurality of unit pixels comprises a first unit pixel region and a second unit pixel region adjacent to the first unit pixel region in a first direction,
wherein the first unit pixel region and the second unit pixel region respectively comprise a first transfer gate and a second transfer gate,
wherein the pixel separation pattern comprises
a first pixel separation part interposed between the first unit pixel region and the second unit pixel region; and
a second pixel separation part spaced apart from the first pixel separation part in the first direction,

wherein the second transfer gate is interposed between the first pixel separation part and the second pixel separation part, and
wherein a top surface of the first pixel separation part is lower than a top surface of the second pixel separation part.