Patent ID: 9425053
Filing Date: 2016-08-23
CPC Classification: H01L

Claim Text:
1. A method of forming a semiconductor structure, comprising: forming a trilayer stack on an initial semiconductor structure formed on a substrate, the trilayer stack comprising an organic planarization layer (OPL), a titanium-containing antireflective coating (TiARC) layer on the OPL and a photoresist layer on the TiARC layer, wherein the TiARC layer comprises a Ti-containing organic inorganic hybrid polymer having a Ti-containing backbone with organic side chain functional groups; forming a pattern in the trilayer stack by etching through the trilayer stack to expose a portion of the initial semiconductor structure; and removing a remaining portion of the trilayer stack, wherein the removing the remaining portion of the trilayer stack causes no damage to a component of the semiconductor structure and the substrate, and wherein after the removing the remaining portion of the trilayer stack, substantially no residue from the trilayer stack remains in the semiconductor structure.