Lam Research Corporation
Systems and methods for tuning an impedance matching network in a step-wise fashion for multiple states of an RF generator

Abstract:

Systems and methods for tuning an impedance matching network in a step-wise fashion for each state are described. By tuning the impedance matching network in a step-wise fashion for each state instead of directly achieving optimum values of a radio frequency (RF) for each state and directly achieving an optimal value of a combined variable capacitance for each state, processing of a wafer using the tuned optimal values becomes feasible.