Patent ID: 11948799
Assignee: APPLIED MATERIALS, INC.
Field: Semiconductors (Electrical engineering)
Classification: CPC H | IPC H

Claim 7:
8. A semiconductor device process method, comprising:
implanting protons into a drift layer of a silicon carbide (SiC) semiconductor device based on a first proton implant process, the first proton implant process to implant protons at a first depth in the drift layer, wherein the SiC semiconductor device includes an upper structure over the drift layer and a bottom metal contact below the drift layer; and
implanting protons into the drift layer of the SiC semiconductor device based on a second proton implant process, the second proton implant process to implant protons at a second depth in the drift layer different than the first depth, wherein the upper structure and the bottom metal contact are formed before the first proton implant process and the second proton implant process.