Patent ID: 9704718
Date: 2017-07-11
CPC Classifications: H01L

Claim:
1. A method for manufacturing a silicon carbide device, comprising: providing a silicon carbide wafer; forming an implant area in the silicon carbide wafer at a top surface of the silicon carbide wafer, thereby defining a p-n junction formed by the implant area and the silicon carbide wafer located adjacent to the implant area; manufacturing a mask layer on the top surface of the silicon carbide wafer after forming the implant area and defining the p-n junction; structuring the mask layer at an edge of a silicon carbide device to be manufactured, so that the structured mask layer comprises a bevel at the edge of the silicon carbide device to be manufactured; and etching the structured mask layer and a portion of the top surface of the silicon carbide wafer by a mutual etching process, so that the bevel of the structured mask layer is reproduced in the silicon carbide wafer at the edge of the silicon carbide device to be manufactured; wherein the bevel etched into the silicon carbide wafer reaches from the top surface of the silicon carbide wafer down to at least the p-n junction formed by the implant area and the silicon carbide wafer located adjacent to the implant area.