Magnetic neutral line discharged plasma type surface cleaning apparatus
First Claim
1. A magnetic neutral line discharged plasma type surface cleaning apparatus comprising means for producing a closed magnetic neutral line which is formed by connecting points of zero-intensity magnetic field, means for continuously generating plasma by applying a rf electric field along the magnetic neutral line and control means for controlling the size and position of the closed magnetic neutral line and the kind, temperature and density of the plasma being generated.
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Accused Products
Abstract
A surface cleaning apparatus using magnetic neutral line discharged plasma for the purpose of inner-wall surface cleaning of a vacuum vessel assembled in a semiconductor manufacturing machine, which comprises electromagnetic coils for producing a closed magnetic neutral line that is formed by circularly connecting points of zero-intensity magnetic field, rf electric field generator for continuously generating plasma by applying a rf electric field along the magnetic neutral line and a controller for controlling the size and position of the closed magnetic neutral line and the kind, temperature and density of the plasma being generated.
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Citations
4 Claims
- 1. A magnetic neutral line discharged plasma type surface cleaning apparatus comprising means for producing a closed magnetic neutral line which is formed by connecting points of zero-intensity magnetic field, means for continuously generating plasma by applying a rf electric field along the magnetic neutral line and control means for controlling the size and position of the closed magnetic neutral line and the kind, temperature and density of the plasma being generated.
Specification