PIECEWISE RF POWER SYSTEMS AND METHODS FOR SUPPLYING PRE-DISTORTED RF BIAS VOLTAGE SIGNALS TO AN ELECTRODE IN A PROCESSING CHAMBER

A radio frequency power system is provided that includes bias modules, a switch, a matching network, and a control module. The bias modules are configured to generate respectively DC bias voltages. The switch is configured to (i) receive current from the bias modules, and (ii) control flow of the current from the bias modules to generate a radio frequency bias voltage signal. The matching network is configured to (i) receive the radio frequency bias voltage signal, and (ii) based on the radio frequency bias voltage signal, supply at least a portion of a radio frequency output voltage signal to an electrode of a substrate support in a processing chamber. The control module is connected to the switch and configured to control a state of the switch based on the radio frequency output voltage signal to shape a waveform of the radio frequency bias voltage signal.