Patent ID: 9407089
Filing Date: 2016-08-02
CPC Classification: H01L,H02H

Claim Text:
1. A circuit, comprising: a driver circuit between a first power supply node and a second power supply node, the driver circuit comprising a first output node and a second output node, the driver circuit being configured to generate a pair of differential signals at the first output node and the second output node; a first electrostatic discharge (ESD) protection circuit coupled between the first output node and the second power supply node, the first ESD protection circuit comprising a first transistor of a predetermined type, and the first transistor comprising a drain region and a source region in a well region of a first type doping; and a second ESD protection circuit coupled between the second output node and the second power supply node, the second ESD protection circuit comprising a second transistor of the predetermined type, and the second transistor comprising a drain region and a source region in the well region of the first type doping.