Patent ID: 8373227
Filing Date: 2013-02-12
Classification: H01L

Abstract:
1. A semiconductor device comprising a substrate including a first region; a second region doped with a dopant of a first conductivity type; a third region, between the first region and the second region, doped with a dopant of a second conductivity type opposite to the first conductivity type and covered by a dielectric layer; and a plurality of trenches laterally extending between the third region and the second region, filled with an insulating material, having a predetermined depth, and separated by active stripes with a doping profile having a depth not exceeding the predetermined depth, wherein each trench is separated from the third region by a substrate portion such that respective boundaries between the substrate portions and the plurality of trenches are not covered by the dielectric layer, and a distance between the third region and said boundaries does not exceed a width of an active stripe.