Semiconductor device manufacturing: process – Chemical etching
Reexamination Certificate
2011-02-08
2011-02-08
Norton, Nadine G (Department: 1713)
Semiconductor device manufacturing: process
Chemical etching
C438S692000, C216S088000, C051S298000, C051S299000, C051S307000, C451S526000
Reexamination Certificate
active
07884020
ABSTRACT:
A polishing cloth used in the chemical mechanical polishing treatment comprises a molded body of (meth)acrylic copolymer having an acid value of 10 to 100 mg KOH/g and a hydroxyl group value of 50 to 150 mg KOH/g.
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Hirabayashi Hideaki
Saito Akiko
Sakurai Naoaki
Sato Koji
Yamada Tomiho
Dahimene Mahmoud
Kabushiki Kaisha Toshiba
Norton Nadine G
Oblon, Spivak McClelland, Maier & Neustadt, L.L.P.
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