Patent ID: 7985640
Filing Date: 2011-07-26
Classification: H01L

Abstract:
1. A method of making a semiconductor device, the method comprising: forming a substrate of a first conductivity type; forming a first section in the substrate; forming a first electrode electrically contacting a first region doped to the first conductivity type in the first section; forming a second electrode electrically contacting a second region doped to a second conductivity type in the first section, wherein the first region and the second region are disposed adjacent to each other; forming a first forward blocking junction formed in a current path between the first electrode and the second electrode, wherein the current path between the first electrode and the second electrode comprises one of a P-N-P-N structure and an N-P-N-P structure; and forming a first reverse blocking junction formed in a current path between the second electrode and an edge of the first section.