Patent ID: 11948961
Assignee: SONY SEMICONDUCTOR SOLUTIONS CORPORATION
Field: Semiconductors (Electrical engineering)
Classification: CPC H | IPC H

Claim 10:
11. The light detecting device according to claim 10, wherein the first coupling structure further includes:
a second opening that penetrates the first substrate from the back surface side of the first substrate, wherein the second opening is configured to expose a second wiring line in the second multi-layered wiring layer; and
a third opening that penetrates each of the first substrate and the second substrate from the back surface side of the first substrate, wherein
the third opening is configured to expose a third wiring line in the third multi-layered wiring layer,
the electrically-conductive material layer is on an inner wall of each of the second opening and the third opening, and
each of the second wiring line exposed by the second opening and the third wiring line exposed by the third opening is electrically coupled to the pad by the electrically-conductive material layer.