A special test structure for the measurement of the injection dependent series resistance of power diodes

In this paper, the capability of a new test pattern for extraction of both the intrinsic series resistance and the injection level of power diodes is presented. The method is based on the measurement of the DC voltage manifesting at a sensing region placed near the active device. Two dimensional simulations showing the correct operation of the test structure are reported. Finally, experimental results obtained on fabricated diodes are presented.