Semtech Corporation
SPIRAL TRANSIENT VOLTAGE SUPPRESSOR OR ZENER STRUCTURE

Abstract:

A transient voltage suppressor is disclosed that includes an electrode, a substrate disposed on the electrode, the substrate having a first doping, an epitaxial layer disposed on the substrate, the epitaxial layer having a second doping that is different from the first doping, a channel formed in the epitaxial layer having a width W, a length L and a plurality of curved regions, the channel forming a plurality of adjacent sections, the channel having a third doping that is different from the first doping and the second doping and a metal layer formed on top of the channel and contained within the width W of the channel.