US Patent 11842995 ESD protection circuit and semiconductor device

An electro-static discharge (ESD) protection circuit is electrically connected to a first pad and a second pad. The ESD protection circuit includes an ESD transistor having a control terminal, a first terminal electrically connected to the first pad, a second terminal electrically connected to the second pad, and a substrate end; and an electro-static pulse detection circuit having an upper terminal electrically connected to the first pad, a lower terminal electrically connected to the second pad, and an output terminal electrically connected to the control terminal and the substrate end of the ESD transistor.