Adhesive bonding and miscellaneous chemical manufacture – Differential fluid etching apparatus – With microwave gas energizing means
Patent
1992-07-23
1993-12-21
Nguyen, Nam
Adhesive bonding and miscellaneous chemical manufacture
Differential fluid etching apparatus
With microwave gas energizing means
20429831, 20429834, 20429837, C23F 102
Patent
active
052717887
ABSTRACT:
A magnetron plasma etching apparatus comprises a suscepter serving as an electrode on which a silicon wafer is mounted. A carbon ring having an outer diameter larger than the diameter of the wafer and an electrical resistance lower than that of the wafer, is arranged around the suscepter. The carbon ring is electrically connected to the suscepter. The carbon ring improves uniformity of etching of the wafer.
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Hasegawa Isahiro
Hasegawa Makoto
Hiratsuka Masahito
Horioka Keiji
Ishikawa Yoshio
Kabushiki Kaisha Toshiba
Nguyen Nam
Tokyo Electron Limited
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