Coating processes – Direct application of electrical – magnetic – wave – or... – Pretreatment of substrate or post-treatment of coated substrate
Patent
1993-12-23
1996-12-24
Nguyen, Nam
Coating processes
Direct application of electrical, magnetic, wave, or...
Pretreatment of substrate or post-treatment of coated substrate
427595, 156345, 1566431, 1566461, 118723MW, 118723MA, B05D 306, C23C 1600, H01L 2100
Patent
active
055872050
ABSTRACT:
A plasma processing method for processing a thin film formed on a substrate or forming a thin film on a substrate within a vacuum vessel provides for supplying a gas into the vacuum vessel, producing a plasma in the vacuum vessel by applying a microwave to the gas, and creating a static magnetic field represented by magnetic lines of force parallel to the direction of propagation of the microwave in the vacuum vessel by a magnetic circuit. The field intensity of the static magnetic field is determined taking into consideration the frequency of the microwave so that the same is lower than the field intensity at which electron cyclotron resonance occurs. The magnetic flux density of the static magnetic field is determined, taking into consideration the frequency of the high-frequency wave or the microwave, so that the same is not lower than the magnetic flux density at which electron cyclotron resonance occurs, and the density of the plasma is determined so that the left-hand circularly polarized wave is cut off.
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Saito Hiroshi
Suzuki Yasumichi
Tamura Naoyuki
Hitachi , Ltd.
Nguyen Nam
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