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
2005-01-18
2005-01-18
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, C430S910000, C526S282000, C526S270000
Reexamination Certificate
active
06844133
ABSTRACT:
A polymer comprising recurring units of formula (1) wherein R1is H or methyl, R2is H or C1-8alkyl, R3is CO2R4, and R4is C1-15alkyl and recurring units having a carboxylic acid protected with an acid-decomposable protecting group containing an adamantane structure or tetracyclo-[4.4.0.12,5.17,10]dodecane structure and having a Mw of 1,000-500,000 is novel. A resist composition comprising the polymer as a base resin is sensitive to high-energy radiation, has excellent sensitivity, resolution and etching resistance and lends itself to micropatterning with electron beams or deep-UV
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Computer English translation of JP 2002-169289, Jun. 2002.*
JPO abstract JP 2002-169289, Jun. 2002.
Hasegawa Koji
Kinsho Takeshi
Nishi Tsunehiro
Ashton Rosemary
Shin-Etsu Chemical Co. , Ltd.
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