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:
Jul. 19, 2011

Filed:

Jan. 24, 2008
Applicants:

Han Kim, Yongin-si, KR;

Je-gwang Yoo, Yongin-si, KR;

Chang-sup Ryu, Yongin-si, KR;

Inventors:

Han Kim, Yongin-si, KR;

Je-Gwang Yoo, Yongin-si, KR;

Chang-Sup Ryu, Yongin-si, KR;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H05K 1/18 (2006.01); H01L 27/108 (2006.01);
U.S. Cl.
CPC ...
Abstract

A printed circuit board having an embedded cavity capacitor is disclosed. According to an embodiment of the present invention, the printed circuit board having the embedded cavity capacitor, the printed circuit board can include two conductive layers to be used as a power layer and a ground layer, respectively; and a first dielectric layer, placed between the two conductive layers, wherein at least one cavity capacitor is arranged in a noise-transferable path between a noise source and a noise prevented destination which are placed on the printed circuit board, the cavity capacitor being formed to allow a second dielectric layer to have a lower stepped region than the first dielectric layer, the second dielectric layer using the two conductive layers as a first electrode and a second electrode, respectively, and placed between the first electrode and the second electrode.


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