Patent ID: 9595619
Date: 2017-03-14
CPC Classifications: H01L

Claim:
1. A semiconductor device, comprising: at least one first contact region of a vertical device between a semiconductor substrate of the semiconductor device and an electrically conductive structure arranged adjacent to the semiconductor substrate; and at least one second contact region of the vertical device between the semiconductor substrate of the semiconductor device and the electrically conductive structure, wherein the at least one first contact region is arranged adjacent to the at least one second contact region, wherein the electrically conductive structure comprises a first electrically conductive material in contact with the semiconductor substrate in an area of the at least one first contact region and a second electrically conductive material in contact with the semiconductor substrate in an area of the at least one second contact region so that a first contact characteristic within the at least one first contact region differs from a second contact characteristic within the at least one second contact region, wherein the first contact characteristic is an ohmic characteristic and the second contact characteristic is a Schottky characteristic, wherein an average area of the semiconductor substrate occupied by an ohmic contact region decreases from a center of the semiconductor substrate towards an edge of the semiconductor substrate.