Patent ID: 11955956
Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY LTD.
Field: Basic communication processes (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
1. A switching circuit comprising:
a main circuit comprising a plurality of first transistors and comprising a first node, a second node, and a third node, wherein the main circuit is operative in response to a control signal received by the first node, and the second node is configured to receive a supply voltage;
an auxiliary circuit electrically coupled to the second node of the main circuit and configured to provide surge protection for the main circuit, wherein the auxiliary circuit comprises a second transistor,
wherein a breakdown voltage of the second transistor is different than a breakdown voltage of each first transistor of the plurality of first transistors, and each first transistor of the plurality of first transistors comprises a first III-V based high-electron-mobility transistor (HEMT) and the second transistor comprises a second III-V based HEMT.