Patent ID: 6238587
Filing Date: 2001-05-29
Classification: C23C,H01J

Abstract:
A method for treating the surface of an article with a plasma jet, the method comprising the steps of:(a) providing an article with a surface to be treated;(b) providing a plasma jet, the method being further characterized in that:(c) the article is rotated about a single axis, the single axis coincident with the article, wherein the rotation defines a rotation radius extending from the axis;(d) the article surface is contacted with the plasma jet to form a plasma jet footprint having a predetermined dimension on the article surface, wherein the size of the article surface is greater than the size of the plasma jet footprint; and(e) the plasma jet footprint is moved along the rotation radius in the radial direction according to a velocity profile along the rotation radius so as to apply heat to the article surface to obtain a desired temperature distribution profile on the article surface as a function of the rotation radius.