Accurate measurement of power/ground impedance with embedded film capacitor using two-port self-impedance measurement technique

In this paper, we have demonstrated the accurate measurement of power/ground impedance with embedded film capacitors, using the two-port self-impedance measurement technique. With the two-port self-impedance measurement, it was found that the unwanted series contact resistance between the microprobe and the contact pad on the PCB and package was successfully eliminated.