PLASMA TREATMENT APPARATUS AND METHOD OF MANUFACTURING OPTICAL PARTS USING THE SAME
First Claim
1. A plasma treatment apparatus for treating a surface of an object of treatment, comprising a container, a gas supply means for supplying gas into the container for plasma excitation, an evacuation means for evacuating the inside of said container, and a microwave supply means for supplying a microwave into said container, the surface of said microwave supply means located opposite to said object of treatment being a non-planar surface having a contour corresponding to that of the surface to be treated of said object of treatment and said non-planar surface being formed of a microwave-transmitting dielectric.
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Accused Products
Abstract
A plasma treatment apparatus for treating a surface of an object of treatment comprises a pressure reducible container, a gas supply means for supplying gas into the container for plasma excitation, an evacuation means for evacuating the inside of the container and a microwave supply means for supplying a microwave into the container. The surface of said microwave supply means located opposite to said object of treatment is a non-planar surface. A film coat showing an excellent intra-surface uniformity and practically free from pin holes and local defects can be formed by means of such an apparatus.
101 Citations
28 Claims
- 1. A plasma treatment apparatus for treating a surface of an object of treatment, comprising a container, a gas supply means for supplying gas into the container for plasma excitation, an evacuation means for evacuating the inside of said container, and a microwave supply means for supplying a microwave into said container, the surface of said microwave supply means located opposite to said object of treatment being a non-planar surface having a contour corresponding to that of the surface to be treated of said object of treatment and said non-planar surface being formed of a microwave-transmitting dielectric.
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6. A plasma treatment apparatus for treating a surface of an object of treatment, comprising:
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a container;
a gas supply means for supplying gas into the container for plasma excitation; and
an evacuation means for evacuating the inside of said container, a part of the walls of said container being made of a dielectric plate of a material adapted to transmit microwaves, said dielectric plate having a convex or concave spherical surface with a predetermined radius of curvature, an antenna for emitting a microwave and an electrode adapted to hold the object of treatment being arranged respectively at the outside and at the inside of said container to sandwich the dielectric plate. - View Dependent Claims (8, 11, 12, 13, 14, 15, 16, 17)
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- 21. A plasma treatment apparatus for treating a surface of an object of treatment, comprising a container, a gas supply means for supplying gas into the container for plasma excitation, an evacuation means for evacuating the inside of said container, and a microwave supply means for supplying a microwave into said container, said microwave supply means having a plurality of microwave emitting members and its surface located opposite to the object of treatment being directed in a predetermined direction relative to the surface to be treated of said object of treatment.
- 24. A plasma treatment apparatus for treating a surface of an object of treatment, comprising a container, a gas supply means for supplying gas into the container for plasma excitation, an evacuation means for evacuating the inside of said container, and a microwave supply means for supplying a microwave into said container, the surface of said microwave supply means located opposite to said object of treatment being a non-planar surface having a contour corresponding to that of the surface to be treated of said object of treatment.
Specification