Method and apparatus for an improved deposition shield in a plasma processing system
First Claim
Patent Images
1. A deposition shield for surrounding a process space in a plasma processing system, comprising:
- a cylinder comprising an inner surface, an outer surface, an upper end surface, and a lower end surface, wherein said lower end surface further comprises;
a first surface extending radially inward from said outer surface, anda protrusion adjacent to said inner surface and protruding from said first surface, said protrusion having an end lip surface thereon; and
a protective barrier provided on a plurality of exposed surfaces of said deposition shield, wherein said exposed surfaces having said protective barrier thereon comprise said inner surface, said upper end surface, and said end lip surface of said lower end surface.
1 Assignment
0 Petitions
Accused Products
Abstract
The present invention presents an improved deposition shield for surrounding a process space in a plasma processing system, wherein the design and fabrication of the deposition shield advantageously provides for a clean processing plasma in the process space with substantially minimal erosion of the deposition shield.
175 Citations
49 Claims
-
1. A deposition shield for surrounding a process space in a plasma processing system, comprising:
-
a cylinder comprising an inner surface, an outer surface, an upper end surface, and a lower end surface, wherein said lower end surface further comprises; a first surface extending radially inward from said outer surface, and a protrusion adjacent to said inner surface and protruding from said first surface, said protrusion having an end lip surface thereon; and a protective barrier provided on a plurality of exposed surfaces of said deposition shield, wherein said exposed surfaces having said protective barrier thereon comprise said inner surface, said upper end surface, and said end lip surface of said lower end surface. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37)
-
-
38. A deposition shield for surrounding a process space in a plasma processing system, comprising:
-
a cylinder comprising an inner surface, an outer surface, an upper end surface, and a lower end surface, wherein; said upper end surface comprises a first surface extending radially outward from said inner surface to an upper end recessed surface that is recessed from said first surface, and said lower end surface comprises a second surface extending radially outward from said inner surface to a lower end recessed surface that is recessed from said second surface; and a protective barrier provided on said inner surface, said first surface of the upper end surface, and said second surface of the lower end surface. - View Dependent Claims (39, 40, 41, 42)
-
-
43. A deposition shield for surrounding a process space in a plasma processing system, comprising:
-
a cylinder comprising an inner surface and an outer surface; an upper end surface coupling said inner surface to said outer surface; a lower end surface coupling said inner surface to said outer surface; an opening having an opening surface coupling said inner surface to said outer surface; and a protective barrier provided on said inner surface, said upper end surface, said lower end surface and said opening surface. - View Dependent Claims (44, 45, 46, 47, 48, 49)
-
Specification