Patent ID: 9117899
Filing Date: 2015-08-25
Classification: H01L

Abstract:
1. A vertical field effect device comprising: a semiconductor substrate, having a drain electrode; a charge compensation zone, adjacent the semiconductor substrate, having a first set of sidewall surfaces, connected in a first octagonal geometry; the first octagonal geometry having a first set of vertices; a first surface metalized with a gate electrode and a source electrode; a source region, in contact with the source electrode and the first surface; a body region in contact with a p+ body contact region, adjacent the source region and the charge compensation zone; a gate zone, in contact with the gate electrode, adjacent the charge compensation zone; the source region, the body region, and the first surface having a second set of sidewall surfaces connected in a second octagonal geometry; the second octagonal geometry having a second set of vertices; the first set of vertices having a first multiple of 45 degrees; and, the second set of vertices having a second multiple of 45 degrees.