Patent ID: 11935757
Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY LTD.
Field: Semiconductors (Electrical engineering)
Classification: CPC H  G | IPC H

Claim 11:
12. A method of manufacturing a semiconductor device, comprising:
forming a first spin-on carbon layer over a patterned surface of a substrate;
crosslinking a portion of the first spin-on carbon layer;
forming a second spin-on carbon layer over the first spin-on carbon layer;
crosslinking a portion of the second spin-on carbon layer;
removing a portion of the second spin-on carbon layer that is not crosslinked; and
forming a planarizing layer over the second spin-on carbon layer after removing the portion of the second spin-on carbon layer that is not crosslinked,
wherein the first spin-on carbon layer comprises an acid.