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.:

US 8158889 B1

PDF
Full Text
Expired
Date of Patent:
Apr. 17, 2012

Filed:

Jun. 20, 2008
Applicants:

Han Kim, Yongin-si, KR;

Je-gwang Yoo, Yongin-si, KR;

Inventors:

Han Kim, Yongin-si, KR;

Je-Gwang Yoo, Yongin-si, KR;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H05K 1/11 (2006.01); H01P 3/08 (2006.01);
U.S. Cl.
CPC ...
Abstract

An electromagnetic bandgap structure and a printed circuit board are disclosed. In accordance with an embodiment of the present invention, the electromagnetic bandgap structure includes a mushroom type structure comprising a first metal plate and a via of which one end is connected to the first metal plate; a second metal plate connected to the other end of the via; a first metal layer being connected to the second metal layer through a metal line; a first dielectric layer, layer-built between the first metal layer and the first metal plate; a second dielectric layer, layer-built on the first metal plate and the first dielectric layer; and a second metal layer, layer-built on the second dielectric layer. With the present invention, it is possible to solve the aforementioned mixed signal problem by preventing the EM wave of a certain frequency range from being transferred.


Find Patent Forward Citations

Kim, Han. (2012). Electromagnetic bandgap structure and printed circuit board (U.S. Patent No. 8158889). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/8158889

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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