Patent ID: RE40222

Claim:
An electronic device formed on a chip of semiconductor material comprising: a substrate having a first type of conductivity and a plurality of surfaces, one of whose surfaces is a bottom surface of the chip, a layer having a second type of conductivity formed on the substrate and having a surface which is a top surface of the chip, at least one first region having the first type of conductivity , that extends into the layer from the top surface, a termination structure comprising: a first termination region having the first type of conductivity , that extends into the layer from the top surface and is shaped in such a way that it surrounds the at least one first region, a first electrode in contact with the first termination region, a second electrode in contact with the layer on the top surface , and shaped in the form of a frame close to the edge of the chip, a third electrode in contact with the bottom surface of the chip and connected electrically to the second electrode, a second termination region having the first type of conductivity, which extends into the layer from the top surface, and shaped in the form of a frame surrounding the fifth electrode, a fourth electrode in contact with the at least one first region and connected electrically to the first electrode, and a fifth electrode in contact with the layer on the top surface along a path that extends substantially parallel to at least part of an edge of the first termination region and connected electrically to the second electrode , and a second termination region having the first type of conductivity, which extends into the layer from the top surface, and shaped in the form of a frame surrounding the fifth electrode .