Plasma processing apparatus
First Claim
1. A plasma processing apparatus comprising:
- a processing chamber having a processing space therein;
a stage provided within the processing chamber;
a dielectric member, having a through hole, provided to face the stage;
a microwave introduction device comprising a coaxial waveguide and configured to introduce microwave into the processing space via the dielectric member;
an injector, having at least one through hole, made of a dielectric material and provided within the dielectric member; and
an electric field shield within the dielectric member and enclosing the injector,wherein the coaxial waveguide, the injector and the through hole of the dielectric member form a path for supplying a processing gas into the processing space, andthe electric field shield is extended downwardly from an upper surface of the injector to a position that is within the dielectric member and closer to the processing space than a bottom surface of the injector.
1 Assignment
0 Petitions
Accused Products
Abstract
A plasma processing apparatus includes a processing chamber, a stage, a dielectric member, a microwave introduction device, an injector, and an electric field shield. The processing chamber has a processing space therein. The stage is provided within the processing chamber. The dielectric member has a through hole and is provided to face the stage. The microwave introduction device is configured to introduce microwave into the processing space via the dielectric member. The injector has at least one through hole and is made of a dielectric material, e.g., a bulk dielectric material. The injector is provided within the dielectric member. The injector and the through hole of the dielectric member form a path for supplying a processing gas into the processing space. The electric field shield encloses the injector.
-
Citations
12 Claims
-
1. A plasma processing apparatus comprising:
- a processing chamber having a processing space therein;
a stage provided within the processing chamber;
a dielectric member, having a through hole, provided to face the stage;a microwave introduction device comprising a coaxial waveguide and configured to introduce microwave into the processing space via the dielectric member; an injector, having at least one through hole, made of a dielectric material and provided within the dielectric member; and an electric field shield within the dielectric member and enclosing the injector, wherein the coaxial waveguide, the injector and the through hole of the dielectric member form a path for supplying a processing gas into the processing space, and the electric field shield is extended downwardly from an upper surface of the injector to a position that is within the dielectric member and closer to the processing space than a bottom surface of the injector. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
- a processing chamber having a processing space therein;
Specification