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:
Jun. 22, 2010
Filed:
Sep. 18, 2007
Applicants:
Yu-chen Chen, Taipei, TW;
Jen-hao Pan, Taipei, TW;
Chih-kuo Sun, Taipei, TW;
Inventors:
Assignee:
ALI Corporation, Taipei, TW;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H02H 9/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
An ESD/EOS protection circuit includes a first protection circuit and a second protection circuit. The first protection circuit is coupled between an I/O pad and a power pad and includes a first P-type transistor. The P-type transistor includes a control node, a floating gate, a first connection node, and a second connection node, wherein the first connection node of the first P-type transistor is coupled to the power pad and the second connection node of the first P-type transistor is coupled to the I/O pad. The second protection circuit is coupled between the I/O pad and a ground pad.