Patent ID: 11876116
Assignee: II-VI DELAWARE, INC.
Field: Semiconductors (Electrical engineering)
Classification: CPC H | IPC H

Claim 4:
5. A method for manufacture of a grid structure in a SiC semiconductor material, the method comprising the steps of:
(a) providing a substrate comprising a doped semiconductor SiC material, the substrate comprising a first layer of a first conductivity type;
(b) by epitaxial growth, growing a second layer on the first layer followed by etching through an entirety of the second layer on certain areas;
(c) by epitaxial growth, adding at least one doped semiconductor SiC material at the certain areas to form separated second regions of a second conductivity type opposite to the first conductivity type on the first layer; and
(d) by ion implantation, at least once at a stage selected from the group consisting of after step (a) and after step (b), implanting ions in the first layer to form first regions of a second conductivity type opposite to the first conductivity type, wherein each of the separated second regions is in contact with one of the first regions.