A system and method is disclosed for implementing a new bipolar-based
silicon controlled rectifier (SCR) circuit for an electrostatic discharge
(ESD) protection. The SCR circuit comprises a bipolar device to be formed
on a semiconductor substrate. The bipolar device comprises at least an
N-well for providing a high resistance and a P+ material to be used as a
collector thereof for further providing a high resistance. At least an
Nmoat guard ring and a Pmoat guard ring surround the bipolar device,
wherein when an ESD event occurs, the high resistance provided by the
N-well and the P+ material of the bipolar device increases a turn-on
speed.