Patent ID: 11942329
Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY LTD.
Field: Semiconductors (Electrical engineering)
Classification: CPC H | IPC H

Claim 15:
16. A method for forming a semiconductor device structure, comprising:
forming a semiconductor protruding structure over a substrate;
forming an insulating layer along sidewalls of the semiconductor protruding structure;
forming a dielectric structure over the substrate;
performing a planarization process such that topmost surfaces of the semiconductor protruding structure, the insulating layer, and the dielectric structure are substantially level with each other;
forming a protective layer to cover the topmost surface of the dielectric structure; and
partially removing the insulating layer after the protective layer is formed such that the semiconductor protruding structure and the dielectric structure protrude from a top surface of a remaining portion of the insulating layer.