Patent ID: 11916126
Assignee: WINBOND ELECTRONICS CORP.
Field: Semiconductors (Electrical engineering)
Classification: CPC H | IPC H

Claim 12:
13. A manufacturing method of a semiconductor device, comprising:
forming a gate structure on a substrate, wherein the gate structure comprises:
a titanium nitride barrier layer; and
a titanium aluminide layer disposed on the titanium nitride barrier layer, wherein the step of forming the gate structure comprises:
forming a titanium nitride layer on the substrate; and
forming a titanium layer on the titanium nitride layer, wherein a thickness of the titanium layer is greater than a thickness of the titanium nitride layer,
wherein a middle layer is formed between the titanium nitride barrier layer and the titanium layer, the middle layer is directly connected with the titanium layer and the titanium nitride barrier layer, and the middle layer comprises titanium and nitrogen.