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.

Date of Patent:
Jun. 26, 2012

Filed:

Mar. 18, 2008
Applicant:

I-cheng Lin, Hsinchu, TW;

Inventor:

I-Cheng Lin, Hsinchu, TW;

Assignee:

Mediatek Inc., Science-Based Industrial Park, Hsin-Chu, TW;

Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
H02H 9/00 (2006.01);
U.S. Cl.
CPC ...
Abstract

The present invention provides an ESD protection circuit, including: a first protecting circuit coupled between a first pad and a second pad, the first protecting circuit including a first discharge transistor; and a second protecting circuit coupled to the first pad and the second pad, the second protecting circuit including a second discharge transistor. One of the first and second discharge transistors is a high-voltage component, and the other of the first and second discharge transistors is a low-voltage component.


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