Patent ID: 7649363

Claim:
A diagnostic tool for performing electrical measurements to calibrate a plasma processing chamber probe, comprising: an RF generator; a first impedance circuit, said first impedance circuit is a voltage-load network, configured to deliver RF voltage outputs from said RF generator for voltage measurements when RF power from said RF generator is delivered to said first impedance circuit, wherein said RF voltage outputs are in the range of about 200 volts to about 6,100 volts; a second impedance circuit, said second impedance circuit is a current-load network, configured to deliver RF current outputs from said RF generator for current measurements when said RF power from said RF generator is delivered to said second impedance circuit, wherein said RF current outputs are in the range of about 2 amperes to about 50 amperes; and a coaxial switch network arrangement configured to provide switchable RF delivery paths to deliver said RF power from said RF generator to one of said first impedance circuit and said second impedance circuit.