Patent ID: 9224583
Filing Date: 2015-12-29
Classification: C23C,G02B,H01J

Abstract:
1. A substrate support apparatus for a plasma processing system, comprising: a layer of dielectric material having a top surface and a bottom surface, the top surface defined to support a substrate in exposure to a plasma; a number of optical fibers each having a first end and a second end, the first end defined to receive photons from a photon source, the second end oriented to project photons received from the photon source onto the bottom surface of the layer of dielectric material, wherein each of the number of optical fibers extends from the layer of dielectric material to the photon source located outside of a chamber in which the layer of dielectric material is located, such that the first end of each of the number of optical fibers is located outside of the chamber, wherein the second end of each of the number of optical fibers is spaced apart from and pointed toward the bottom surface of the layer of dielectric material; and a baseplate of thermally conductive material, the layer of dielectric material affixed to a top surface of the baseplate, the baseplate including a number of passages through which the number of optical fibers are respectively routed.