Patent ID: 6733618
Filing Date: 2004-05-11
Classification: G05B,H01J,H01L,Y02P

Abstract:
A plasma processing control system comprising:a plasma processing apparatus for performing a plasma processing operation over a sample accommodated within a vacuum processing chamber; a sensor for monitoring process parameters during processing operation of the processing apparatus; means for providing a processed-result estimation model which estimates a processed result on the basis of a monitored output from the sensor and a preset processed-result estimation equation; means for providing an optimum recipe calculation model which calculates optimum processing conditions such that the processed result becomes a target value on the basis of the estimated result of the processed-result estimation model; usable recipe determining means for judging validity of an optimum recipe calculated by said optimum recipe calculation model including selecting one of previously-stored recipes which is the closest to the optimum recipe calculated by said optimum recipe calculation model to thereby determine a usable recipe; and a controller for controlling the plasma processing apparatus on the basis of the usable recipe determined by said usable recipe determining means.