Birch, Stewart, Kolasch & Birch, LLP
ESD protection circuit with whole-chip ESD protection
An ESD protection circuit with whole-chip ESD protection. A plurality of ESD protection devices, apart from an ESD detection circuit, can be MOS transistors connected between the input/output pads and the VDD/VSS lines or a power rail clamp circuit between the VDD and VSS lines. The ESD detection circuit is connected between the VDD and VSS lines. When an ESD event occurs and an ESD current is bypassed to the power line, the ESD detection circuit generates a plurality of enabling signals to simultaneously enable the ESD protection devices, which provides a plurality of discharge paths to bypass the ESD current.
Industrial Technology Research Institute
H
H01L
inventional
Chyh-Yih Ming-Dou Zi-Ping
Chang Ker Chen