Patent ID: 8591755
Filing Date: 2013-11-26
Classification: C23F,G05B,H01J,H01L

Abstract:
1. A method for operating a plasma processing chamber, comprising: obtaining a time-dependent substrate temperature to be applied during a plasma process, wherein the time-dependent substrate temperature at any given time is correlated to control of a sticking coefficient of a plasma constituent at the given time; obtaining a time-dependent temperature differential between an upper plasma boundary and a substrate to be applied during the plasma process, wherein the substrate serves as a lower plasma boundary, and wherein the time-dependent temperature differential at any given time is correlated to control of a flux of the plasma constituent toward the substrate at the given time; holding the substrate on a top surface of a substrate holder, wherein the substrate holder is disposed at a location below and spaced apart from an upper electrode assembly which defines the upper plasma boundary; controlling a temperature of the substrate holder during the plasma process so as to control a temperature of the substrate in accordance with the obtained time-dependent substrate temperature; and controlling a temperature of the upper electrode assembly during the plasma process so as to comply with the obtained time-dependent temperature differential between the upper plasma boundary and the substrate.