Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – At least one aryl ring which is part of a fused or bridged...
Reexamination Certificate
2007-03-06
2007-03-06
Walke, Amanda (Department: 1752)
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
At least one aryl ring which is part of a fused or bridged...
C525S332100, C526S280000
Reexamination Certificate
active
10753529
ABSTRACT:
There are provided a novel norbornene derivative which is a material for a chemically amplifying type photoresist for F2laser, possesses excellent transparency and improved dry etching resistivity and has a fluorine-containing ketone unit or fluorine-containing tertiary alcohol unit directly bonded to the norbornene backbone; a fluorine-containing polymer obtained by using the norbornene derivative as a copolymerizable monomer; and a chemically amplifying type photoresist composition comprising the fluorine-containing polymer, a photoacid generator and a solvent.
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Araki Takayuki
Ishikawa Takuji
Kume Takuji
Yamamoto Akinori
Daikin Industries Ltd.
Sughrue & Mion, PLLC
Walke Amanda
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