Patent ID: 7023677
Filing Date: 2006-04-04
Classification: H01L

Abstract:
1. An electrostatic discharge (ESD) circuit, adaptive to a radio frequency (RF) device, which includes a RF circuit with a VDD voltage RF pad, a VSS RF pad and a RF input pad, the ESD circuit comprising: a ESD clamp circuit including two terminals, the first one of which is connected to the VDD voltage RF pad, and the second one of which is connected to the VSS RF pad; and a LC tank structure, coupled between the two terminals of the ESD clamp circuit, and between the RF circuit and the RF input pad, wherein the LC tank structure includes a first diode and a first LC tank connected in series between the first terminal of the ESD clamp circuit and the RF input pad, and a second diode and a second LC tank connected in series between the second terminal of the ESD clamp circuit and the RF input pad.