Patent ID: 9013843
Filing Date: 2015-04-21
Classification: H02H

Abstract:
1. A multiple device voltage electrostatic discharge (ESD) clamp comprising: a trigger circuit comprising: a first inverter having an input terminal electrically connected to the second terminals of the resistor and the capacitor, the first inverter having a first power terminal and a second power terminal, the first voltage supply node electrically connected to supply a first voltage to the first power terminal of the first terminal, the second voltage supply node electrically connected to supply a second voltage to the second power terminal of the first inverter; a second inverter having a power terminal, wherein an output terminal of the first inverter is electrically connected to drive the first power terminal of the second inverter, and wherein the second voltage supply node is electrically connected to supply the second voltage to an input terminal of the second inverter; and an ESD discharge path having a first end electrically connected to the first voltage supply node, and a second end electrically connected to a third voltage supply node, the ESD discharge path comprising: