Semiconductor device manufacturing: process – Chemical etching – Combined with the removal of material by nonchemical means
Reexamination Certificate
2005-06-30
2008-12-02
Webb, Gregory E (Department: 1796)
Semiconductor device manufacturing: process
Chemical etching
Combined with the removal of material by nonchemical means
C438S693000, C510S175000, C134S001300
Reexamination Certificate
active
07459398
ABSTRACT:
Disclosed is a CMP slurry comprising an abrasive grain, and a mixed surfactant comprising a first polyether type nonionic surfactant having an HLB value ranging from 3 to 9 at room temperature, and a second polyether type nonionic surfactant having an HLB value ranging from 10 to 20 at room temperature.
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Notification of Reasons for Rejection issued by the Japanese Patent Office on Jun. 12, 2007, for Japanese Patent Application No. 2004-231167, and English-language translation thereof.
Matsui Yukiteru
Minamihaba Gaku
Yano Hiroyuki
Finnegan Henderson Farabow Garrett & Dunner L.L.P.
Kabushiki Kaisha Toshiba
Webb Gregory E
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