Invention Grant
US08323872B2 Resist protective coating material and patterning process 有权
抵抗保护涂料和图案化过程

Resist protective coating material and patterning process
Abstract:
A resist protective coating material is provided comprising a polymer having a partial structure of formula (1) wherein R0 is H, F, alkyl or alkylene, and R1 is fluorinated alkyl or alkylene. In a pattern-forming process, the material forms on a resist film a protective coating which is water-insoluble, dissolvable in alkaline developer and immiscible with the resist film, allowing for effective implementation of immersion lithography. During alkali development, development of the resist film and removal of the protective coating can be simultaneously achieved.
Public/Granted literature
Information query
Patent Agency Ranking
0/0