Semiconductor device manufacturing: process – Chemical etching – Vapor phase etching
Reexamination Certificate
2006-10-17
2006-10-17
Goudreau, George A. (Department: 1763)
Semiconductor device manufacturing: process
Chemical etching
Vapor phase etching
C438S725000, C438S729000, C216S067000
Reexamination Certificate
active
07122479
ABSTRACT:
An etching processing method capable of etching a low dielectric constant layer at a reduced cost by using an etching processing apparatus comprising a vacuum vessel, a sample loading electrode disposed in the vacuum vessel, a gas introduction device for introducing a reaction gas into the vacuum vessel, an antenna for forming plasmas in the vacuum vessel, and a high frequency power supply for supplying a bias power to a sample loaded on the sample loading electrode, wherein the bias power to be supplied to the sample is 3 W/cm2or less, and the gas introduction device introduces a gas containing chlorine atoms or bromine atoms to apply etching processing to an inorganic insulation material of low dielectric constant loaded on the loading electrode.
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Fukuyama Ryouji
Mizumura Michinobu
Ohmoto Yutaka
Yakushiji Mamoru
Goudreau George A.
Hitachi High-Technologies Corporation
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