Current Instability in Four-Layer p–n–p–n-Structures

Abstract

The behavior of p 1–n 1–p 2–n 2-structure with contacts to n 1- and n 2-regions was studied. It is shown that at such double electrode closing, four-layer structures do not have stationary state in a certain voltage range, i.e. they develop instability accompanied by the generation of relaxation current pulses. A physical model is proposed for the observed instability.