Light emitting semiconductor element has multilayers on a substrate with the pn junction insulatively separated into light emitting and protective diode sections

摘要

A light-emitting semiconductor element comprises multilayers (2) on a semiconductor with a pn junction (5a,5b) between two layers that is separated into light-emitting (7) and protective diode (8) sections by insulation (6), the protective section being larger. A second pn junction in this section connects to the p-layer in the light-emitting section.