Patent ID: 8922960
Filing Date: 2014-12-30
Classification: H02H

Abstract:
1. An electrostatic discharge (ESD) protection device, comprising: a silicon controlled rectifier (SCR) coupled between a first voltage potential and a second voltage potential, the SCR including a PNP transistor and an NPN transistor; and a first ESD control device including: wherein the voltage divider is configured to provide a divided portion of a voltage difference between the first voltage potential and the second voltage potential to the gate of the first NMOS device, wherein the divided portion is a function of a respective same physical dimension of the at least two dividing elements, and further wherein the respective same physical dimensions are sized such that the divided portion is less than a source voltage of the first NMOS device to keep off the first NMOS device during normal operation and further wherein the divided portion turns on the first NMOS device during an ESD event.