Impedance of Bulk Semiconductor in Junction Diode

Abstract

The impedance of bulk semiconductor in a junction diode, as defined as the “imref drop” for majority carrier divided by the total current through the junction, is calculated by using the low-level solution of minority carrier and is shown to have an inductive reactance, which becomes more and more dominant over the capacitive reactance of the impedance of the junction proper so that the impedance of the whole diode turns inductive as the injection level rises.