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

Claim 14:
15. An electronic apparatus, comprising:
a light detecting device configured to electronically shoot an image of an object to be observed, the light detecting device including:
a first substrate that includes:
a first semiconductor substrate; and
a first multi-layered wiring layer on the first semiconductor substrate;

a second substrate that includes:
a second semiconductor substrate; and
a second multi-layered wiring layer on the second semiconductor substrate;

a third substrate that includes:
a third semiconductor substrate; and
a third multi-layered wiring layer on the third semiconductor substrate, wherein the first substrate, the second substrate, and the third substrate are stacked in this order; and

a first coupling structure that includes:
a pad on a back surface of the first substrate, wherein the pad is configured to function as an I/O unit;
a first opening from a back surface side of the first substrate, wherein the first opening is configured to expose a first wiring line in the first multi-layered wiring layer; and
an electrically-conductive material layer on an inner wall of the first opening, wherein the first wiring line exposed by the first opening is electrically coupled to the pad by the electrically-conductive material layer.