Patent ID: 9666416
Date: 2017-05-30
CPC Classifications: C23C,H01J,H01L

Claim:
1. A method for depositing pasting material in a plasma processing chamber, comprising the steps of: providing a pasting disk having a pasting material layer and a base in a plasma processing chamber, wherein a ratio of a diameter of the pasting material layer to a diameter of the base is selected to reduce pasting material deposition onto a dielectric edge ring disposed in the plasma processing chamber, wherein the ratio of the diameter of the pasting material layer to the diameter of the base ranges from about 0.4 to about 0.98; transferring the pasting disk from a pasting disk handling device to a substrate support pedestal disposed in the plasma processing chamber; positioning the pedestal to a processing position; sputter etching the pasting material layer to deposit pasting material onto plasma processing chamber surfaces, wherein this step is performed with no substrate in the plasma processing chamber; positioning the pedestal to a transfer position; and transferring the pasting disk from the substrate support pedestal to a pasting disk handling device.