Patent ID: 11901386
Assignee: SAMSUNG ELECTRONICS CO., LTD.
Field: Semiconductors (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
1. An image sensor comprising:
a first region and a second region surrounding the first region;
a substrate including a first surface and a second surface that is opposite to the first surface;
a photoelectric conversion element disposed on the substrate;
a passivation layer disposed on the first surface of the substrate;
a microlens disposed on the passivation layer in the first region, the microlens is not disposed on the passivation layer in the second region; and
a pattern structure disposed on an upper surface of the passivation layer in the second region, the pattern structure includes a metal and has at least one lateral side wall having a sloped profile that slopes towards the first region,
wherein a first lateral sidewall of the at least one lateral side wall of the pattern structure has a convex surface shape curving outwardly towards the first region, and
wherein an uppermost surface of the first lateral sidewall is disposed farther away from the first region than all other surfaces of the first lateral sidewall and a lowermost surface of the first lateral sidewall is disposed closest to the first region than all other surfaces of the first lateral sidewall.