Patent ID: 7972913

Claim:
A method for forming a Schottky diode, comprising: providing a semiconductor containing substrate having an upper surface; doping an upper portion of the substrate to have a first conductivity type extending substantially to the upper surface; providing multiple spaced-apart finger regions of a second, opposite, conductivity type, wherein first parts of the upper portion of the substrate lie between some of the spaced-apart finger regions; forming a buried further region of the second, opposite, conductivity type underlying at least part of the first parts of the upper portion; forming a Schottky contact on a part of the upper surface lying for the most part laterally beyond the spaced-apart finger regions; and coupling the spaced-apart finger regions and the further buried region to the Schottky contact and to a first terminal of the device; and coupling a second part of the upper portion to a second terminal of the device.