Patent ID: 11915977
Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY LTD.
Field: Semiconductors (Electrical engineering)
Classification: CPC H | IPC H

Claim 12:
13. A device, comprising:
a second substrate;
a second intermetal dielectric (IMD) disposed over the second substrate;
a first IMD bonded to the second IMD;
a first substrate disposed over the first IMD;
a second conductive element located within the second IMD;
a first conductive element located within the first IMD, wherein the first conductive element is wider than the second conductive element, and wherein the first conductive element has a recess; and
an interconnect-plug that extends partially through the second IMD and completely through the first IMD, wherein the interconnect-plug is disposed on the second conductive element and intersects the first conductive element, and wherein a first portion of the interconnect-plug disposed in the second IMD is narrower than a second portion of the interconnect-plug disposed in the first IMD, and wherein the first portion meets the second portion at a level between a topmost surface and a bottommost surface of the first conductive element.