Patent ID: 11942398
Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY LTD.
Field: Semiconductors (Electrical engineering)
Classification: CPC H | IPC H

Claim 14:
15. A semiconductor device, comprising:
a substrate, comprising an electronic circuitry;
at least one via, passing through the substrate, wherein the at least one via comprises a plurality of concave portions on a sidewall thereof;
a liner layer, filling in the plurality of concave portions of the at least one via;
a conductive layer, disposed on the sidewall of the at least one via, covering the liner layer, and extending onto a surface of the substrate, wherein a thickness of the conductive layer on the sidewall of the at least one via is varied; and
a support substrate, disposed below the substrate and having at least one recess,
wherein the at least one via is in spatial communication with the at least one recess of the support substrate.