Patent ID: 8664665
Filing Date: 2014-03-04
Classification: H01L

Abstract:
1. A semiconductor device comprising: a drift layer having a first surface with an active region and a plurality of junction barrier element recesses, the drift layer being doped with a doping material of a first conductivity type and associated with an edge termination region that is substantially laterally adjacent the active region and comprises an edge termination structure, wherein the edge termination region has an edge termination recess extending into the drift layer from the first surface and the edge termination structure comprises a plurality of guard rings formed in the edge termination recess; a Schottky layer over the active region of the first surface to form a Schottky junction; and a plurality of first doped regions that extend into the drift layer about corresponding ones of the plurality of junction barrier element recesses wherein the plurality of first doped regions are doped with a doping material of a second conductivity type, which is opposite the first conductivity type, and form an array of junction barrier elements in the drift layer below the Schottky junction.