Patent ID: 11901392
Assignee: SONY SEMICONDUCTOR SOLUTIONS CORPORATION
Field: Audio-visual technology (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
1. A semiconductor device, comprising:
a first substrate that includes a first circuit having a first function;
a first inter-wiring insulating layer on the first substrate, wherein the first inter-wiring insulating layer includes a recess on a side opposite to the first substrate;
a second inter-wiring insulating layer on the first inter-wiring insulating layer to cover the recess, wherein the second inter-wiring insulating layer includes a second wiring layer;
a first wiring layer inside the recess in the first inter-wiring insulating layer;
a gap around the first wiring layer, wherein the gap is between the first inter-wiring insulating layer and the second inter-wiring insulating layer;
a second substrate that includes a second circuit having a second function, wherein the second function of the second circuit is different from the first function of the first circuit; and
a multi-layer wiring layer on the second substrate, wherein
the multi-layer wiring layer opposes the second inter-wiring insulating layer,
the multi-layer wiring layer includes:
a fourth inter-wiring insulating layer; and
a fourth wiring layer in the fourth inter-wiring insulating layer, wherein the fourth wiring layer is electrically coupled to the second wiring layer.