Apparatus and method for reactive atom plasma processing for material deposition
First Claim
1. A method for planarizing a surface of a workpiece, comprising:
- translating at least one of a workpiece and a plasma torch;
depositing material on the surface of the workpiece using the plasma torch;
removing material from the surface of the workpiece using a discharge from the plasma torch; and
using reactive atom plasma processing to redeposit the removed material on the surface of the workpiece.
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Accused Products
Abstract
Reactive atom plasma processing can be used to shape, polish, planarize, and clean surfaces of difficult materials with minimal subsurface damage. The apparatus and methods use a plasma torch, such as a conventional ICP torch. The workpiece and plasma torch are moved with respect to each other, whether by translating and/or rotating the workpiece, the plasma, or both. The plasma discharge from the torch can be used to shape, planarize, polish, clean and/or deposit material on the surface of the workpiece, as well as to thin the workpiece. The processing may cause minimal or no damage to the workpiece underneath the surface, and may involve removing material from, and/or redistributing material on, the surface of the workpiece.
This description is not intended to be a complete description of, or limit the scope of, the invention. Other features, aspects, and objects of the invention can be obtained from a review of the specification, the figures, and the claims.
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Citations
14 Claims
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1. A method for planarizing a surface of a workpiece, comprising:
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translating at least one of a workpiece and a plasma torch; depositing material on the surface of the workpiece using the plasma torch; removing material from the surface of the workpiece using a discharge from the plasma torch; and using reactive atom plasma processing to redeposit the removed material on the surface of the workpiece. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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Specification