Patent ID: 11948833
Assignee: SONY GROUP CORPORATION
Field: Audio-visual technology (Electrical engineering)
Classification: CPC H | IPC H

Claim 14:
15. A light detecting device, comprising:
a first substrate section including a first semiconductor layer and a first insulating layer, wherein the first semiconductor layer includes a pixel array having a plurality of photo electric conversion portions, and wherein the first insulating layer is disposed at a first side of the first semiconductor layer;
a second substrate section including a second semiconductor layer and a second insulating layer, wherein the second insulating layer includes a first wiring;
a first insulating film disposed at a second side of the first semiconductor layer that is opposite to the first side of the first semiconductor layer;
a first connection hole penetrating the first insulating film, the first semiconductor layer, and only part of the first insulating layer to expose the first wiring, wherein an inner side wall of the first connection hole includes an angled portion in a cross-sectional view;
a second insulating film disposed on at least a part of the inner side wall of the first connection hole; and
a first via disposed in the first connection hole and connected to the first wiring, wherein a part of the first via has an angled portion that is along the angled portion of the inner side wall of the first connection hole in the cross-sectional view.