The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 02, 2012
Filed:
Oct. 20, 2010
Chun-yu Lin, Hualien, TW;
Li-wei Chu, Hsinchu, TW;
Ming-dou Ker, Zhubei, TW;
Ming Hsien Tsai, Sindian, TW;
Tse-hua LU, Zhubei, TW;
Ping-fang Hung, Hsinchu, TW;
Chun-Yu Lin, Hualien, TW;
Li-Wei Chu, Hsinchu, TW;
Ming-Dou Ker, Zhubei, TW;
Ming Hsien Tsai, Sindian, TW;
Tse-Hua Lu, Zhubei, TW;
Ping-Fang Hung, Hsinchu, TW;
Taiwan Semiconductor Manufacturing Co., Ltd., Hsin-Chu, TW;
Abstract
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, includes 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 node and the VSS power rail node and to the RF I/O pad. 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. 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.