Patent ID: 9287371
Filing Date: 2016-03-15
CPC Classification: H01L

Claim Text:
1. A semiconductor device structure comprising: a substrate; a first semiconductor layer overlying the substrate and having a major surface spaced apart from the substrate; a localized superjunction structure within a portion of the first semiconductor layer and extending from the major surface into at least the first semiconductor layer, wherein the localized superjunction structure comprises: a control electrode adjacent the major surface and spaced apart from the localized superjunction structure; a body region adjacent the major surface, the body region being laterally interposed between the control electrode and the localized superjunction structure, wherein the localized superjunction structure adjoins a vertically oriented side surface of the body region and the first semiconductor layer adjoins a bottom surface of the body region, and wherein the body region extends downward from the major surface to a first depth; and a first doped region of the second conductivity type disposed extending from the major surface to a top surface of the third semiconductor layer, wherein the first doped region has a higher dopant concentration than the third semiconductor layer and is configured to provide a charge imbalance within the localized superjunction structure, and wherein: