Patent ID: 11923338
Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY LTD.
Field: Semiconductors (Electrical engineering)
Classification: CPC H | IPC H

Claim 17:
18. A structure comprising:
an interconnect structure comprising:
a top portion; and
a bottom portion under the top portion, wherein the top portion laterally extends beyond a first edge of the bottom portion;

a first device comprising:
a first semiconductor substrate, wherein the top portion of the interconnect structure is in the first semiconductor substrate;
a first integrated circuit at a bottom side of the first semiconductor substrate;
a first plurality of dielectric layers underlying the first semiconductor substrate;
a first plurality of conductive features in the first plurality of dielectric layers, wherein the first plurality of conductive features comprise a first conductive feature;

a second device underlying, and bonding to, the first device, the second device comprising:
a second semiconductor substrate;
a second integrated circuit at a top side of the second semiconductor substrate;
a second plurality of dielectric layers; and
a second plurality of conductive features in the second plurality of dielectric layers, wherein the second plurality of conductive features comprise a second conductive feature, and wherein the bottom portion of the interconnect structure extends to the second conductive feature.