Patent ID: 11869853
Assignee: SONY SEMICONDUCTOR SOLUTIONS CORPORATION
Field: Semiconductors (Electrical engineering)
Classification: CPC H | IPC H

Claim 15:
16. A semiconductor device, comprising:
a first substrate including a pixel region having a plurality of pixels;
a second substrate bonded to the first substrate at a bonding interface;
at least one guard structure disposed in the first and second substrates and outside of the pixel region, the at least one guard structure including:
a first guard element disposed in a first surface of the first substrate that is opposite the bonding interface;
a second guard element disposed in a first surface of the second substrate that is opposite the bonding interface; and
a third guard element including a first bonding portion disposed in the first substrate at the bonding interface and spaced apart from the first guard element by a portion of the first substrate, and a second bonding portion disposed in the second substrate at the bonding interface and spaced apart from the second guard element by a portion of the second substrate,

wherein the first bonding portion and the second bonding portion are bonded to one another, and
wherein the first guard element, the second guard element, and the third guard element overlap one another in a plan view; and
at least one dummy structure, wherein the at least one dummy structure is at an outer circumference of the at least one guard structure, and is disposed in the first surface of the first substrate and the first surface of the second substrate.