Patent ID: 8957502
Filing Date: 2015-02-17
Classification: H01L

Abstract:
1. A semiconductor device comprising: an element activating part that is disposed on a first principal face side; an element peripheral edge part that surrounds the element activating part; a low-resistance layer that is disposed on a second principal face side; a parallel p-n layer, in which a first conductivity type area and a second conductivity type area are alternately arranged, disposed between a first principal face and the low-resistance layer; a first conductivity type region disposed between the parallel p-n layer and the first principal face in the element peripheral edge part, the first conductivity type region having disposed therein two or more second conductivity type areas which are disposed to be separate from each other in the first principal face side; two or more first conductive layers which are electrically connected to the second conductivity type areas which are disposed in the first conductivity type region and partially cover the first principal face in the element peripheral edge part; and two or more second conductive layers which are electrically connected to the second conductivity type areas which are disposed in the first conductivity type region, and which cover the first conductive layers adjacent to each other so as to cover the first principal face between the first conductive layers through an insulating layer wherein the first and second conductive layers completely overlie the second conductivity type areas.