Patent ID: 11875996
Assignee: APPLIED MATERIALS, INC.
Field: Semiconductors (Electrical engineering)
Classification: CPC H  C | IPC H

Claim 0:
1. A method of depositing a metal material on a seed layer, comprising:
depositing a barrier layer on a substrate, wherein the barrier layer provides adhesion for a seed layer material and inhibits migration of the seed layer material;
depositing the seed layer on the barrier layer;
etching the seed layer to create at least one exposed portion of the barrier layer and form at least one isolated seed layer area on the barrier layer,
wherein the at least one isolated seed layer area is completely separated from any other portions of the seed layer;
performing an oxygen-based descum process after etching the seed layer to oxidize the at least one exposed portion of the barrier layer to inhibit electrochemical deposition on the barrier layer; and
depositing the metal material on the at least one isolated seed layer area using an electrochemical deposition process, wherein the barrier layer provides a current path to deposit the metal material on the at least one isolated seed layer area.