Patent ID: 11948837
Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY LTD.
Field: Semiconductors (Electrical engineering)
Classification: CPC H | IPC H

Claim 11:
12. A method for making a semiconductor structure, comprising:
forming a first dielectric layer on a substrate, the first dielectric layer being formed with a contact feature therein;
forming a second dielectric layer on the first dielectric layer;
etching the second dielectric layer to form an interconnect opening exposing the contact feature;
forming a metal layer on the second dielectric layer, the metal layer reacting with the second dielectric layer to form a metal silicate layer connected between the metal layer and the second dielectric layer; and
forming a graphene conductive structure on the metal layer, the graphene conductive structure filling the interconnect opening, being electrically connected to the contact feature, and having at least one graphene layer that extends in a direction substantially perpendicular to the substrate.