Patent ID: 9711636
Date: 2017-07-18
CPC Classifications: H01L

Claim:
1. A super junction semiconductor device comprising: a substrate; a drift layer disposed on the substrate and having a surface at a side opposite to the substrate, wherein the drift layer includes a plurality of n-type pillars and a plurality of p-type pillars extending from the surface toward the substrate and arranged alternately to form a super-junction structure, and the drift layer defines an active region, a termination region surrounding the active region, and a transition region between the active region and the termination region; a field insulator disposed on the surface and covering the termination region and a portion of the transition region; a floating electrode layer disposed on the field insulator, wherein the floating electrode layer partially overlaps with the termination region; an isolation layer disposed on the floating electrode layer; and at least one transistor structure located in the active region, wherein the transistor structure includes at least one source conductive layer extending from the active region to the transition region, a portion of the source conductive layer covers the isolation layer and partially overlaps with the floating electrode layer in a direction perpendicular to the surface, and the source conductive layer is insulated from the floating electrode layer by the isolation layer.