Patent ID: 11862719
Assignee: WOLFSPEED, INC.
Field: Semiconductors (Electrical engineering)
Classification: CPC H | IPC H

Claim 10:
11. An apparatus, comprising:
a substrate;
a group III-Nitride buffer layer on the substrate;
a group III-Nitride barrier layer on the group III-Nitride buffer layer, the group III-Nitride barrier layer comprising a higher bandgap than a bandgap of the group III-Nitride buffer layer;
a source electrically coupled to the group III-Nitride barrier layer;
a gate electrically coupled to the group III-Nitride barrier layer;
a drain electrically coupled to the group III-Nitride barrier layer; and
a p-region being at least one of the following: in the substrate or on the substrate below said group III-Nitride barrier layer,
wherein the p-region is structured and arranged to extend a limited length parallel to the group III-Nitride barrier layer such that the p-region is not located vertically under the gate; and
wherein the p-region is configured without a p-type material contact and without a connection.