Patent ID: 8279570

Claim:
An electrostatic discharge (ESD) circuit, adaptive to a radio frequency (RF) device, which includes a RF circuit coupled between a VDD power rail and a VSS power rail and having a RF I/O pad, the ESD circuit comprising: an ESD clamp circuit coupled between a VDD power rail node and the VSS power rail node; and a LC-tank structure coupled between the VDD power rail and the VSS power rail nodes and to the RF I/O pad, wherein the LC-tank structure includes a first ESD block between the VDD power rail node and the RF I/O pad, and a second ESD block between the VSS power rail node and the RF I/O pad, wherein at least one of the first and second ESD blocks includes a pair of diodes coupled in parallel with each other and an inductor coupled in series with one of the pair of diodes.