Patent ID: 9099284
Filing Date: 2015-08-04
Classification: H01J,H01L,H03H

Abstract:
1. A method for operating a processing system including a plasma chamber, a local controller, and a remote manufacturing controller, comprising: storing a process recipe, including RF match network setting for the plasma chamber, in the remote manufacturing controller; providing local storage for storing local values of RF match network setting; energizing the plasma chamber using values of the process recipe and selecting initial RF match network setting according to: when local values of RF match network setting are stored in the local storage, selecting the local values, and when no local values of RF match network setting are stored in the local storage, selecting RF match network setting values included in the process recipe; monitoring reflective power from the plasma chamber; varying setting of RF match network of the plasma chamber to achieve minimum reflected power and, when minimum reflected power is achieved, storing new RF match network setting in the local storage; and, subsequently operating the plasma chamber according to the process recipe, but using the new RF match network setting that is stored in the local storage; and, wherein varying setting of RF match network comprises: comparing current reflected power to a threshold and if the current reflected power is outside the threshold performing: incrementing the setting of the RF match network in a first direction and performing a comparison operation comprising: