Radiation imagery chemistry: process – composition – or product th – Imaging affecting physical property of radiation sensitive... – Radiation sensitive composition or product or process of making
Reexamination Certificate
2006-02-21
2006-02-21
Ashton, Rosemary (Department: 1752)
Radiation imagery chemistry: process, composition, or product th
Imaging affecting physical property of radiation sensitive...
Radiation sensitive composition or product or process of making
C430S326000, C430S907000, C526S242000, C526S281000
Reexamination Certificate
active
07001707
ABSTRACT:
A resist composition comprising a blend of a cyclic polymer having alcoholic groups as soluble groups and a polymer having carboxyl or hexafluoroalcohol groups whose hydrogen atoms are replaced by acid labile groups as a base resin forms a resist film which is improved in transparency, alkali dissolution contrast and plasma etching resistance.
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Endo Masayuki
Harada Yuji
Hatakeyama Jun
Kawai Yoshio
Kishimura Shinji
Ashton Rosemary
Central Glass Co. Ltd.
Shin-Etsu Chemical Co. , Ltd.
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