Chemistry: molecular biology and microbiology – Micro-organism – tissue cell culture or enzyme using process... – Preparing heterocyclic carbon compound having only o – n – s,...
Reexamination Certificate
2006-10-24
2006-10-24
Dentz, Bernard (Department: 1625)
Chemistry: molecular biology and microbiology
Micro-organism, tissue cell culture or enzyme using process...
Preparing heterocyclic carbon compound having only o, n, s,...
C435S124000, C435S125000, C435S127000
Reexamination Certificate
active
07125692
ABSTRACT:
A process for producing a monomer for resists represented by the following general formula 1:wherein R1represents hydrogen or an optionally substituted alkyl group; R2, R3and R4each independently represent hydrogen or a substituent; and X, Y and Z each independently represent a direct bond or an optionally substituted alkylene group with 1 to 3 chain members,the process comprising carrying out esterification or transesterification in the presence of a biocatalyst.
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Koji Nozaki, et al., “A new single-layer resist for 193-nm lithography”, Jpn, J. Appl. Phys., vol. 35, No. 4B, pp.: L528-530 Apr. 15, 1996.
Kaneko Makoto
Murata Naoshi
Satou Eiji
Dentz Bernard
Mitsubishi Rayon Co. Ltd.
Oblon & Spivak, McClelland, Maier & Neustadt P.C.
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