Semiconductor circuit including electrostatic discharge circuit having protection element and trigger transistor

Abstract

A semiconductor circuit includes a first pad for a first power source, a second pad for a second power source, a third pad for an input/output signal, a protection element arranged between the first pad and the third pad, and a transistor functioning as a trigger element for use in passing a trigger current through the protection element. The transistor includes source connected to the third pad, a gate and a backgate commonly connected to the second pad.

Dependencies are inferred from the claim text.