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:
Aug. 27, 2013
Filed:
May. 19, 2010
Applicant:
Chen-chuan Chang, Taoyuan County, TW;
Inventor:
Chen-Chuan Chang, Taoyuan County, TW;
Assignee:
Unimicron Technology Corp., Taoyuan, TW;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H05K 1/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A circuit board having a cavity is provided. The circuit board includes a first core layer, a second core layer, and a central dielectric layer. The first core layer includes a core dielectric layer and a core circuit layer, wherein the core circuit layer is disposed on the core dielectric layer. The second core layer is disposed on the first core layer. The central dielectric layer is disposed between the first core layer and the second core layer. The cavity runs through the second core layer and the central dielectric layer and exposes a portion of the core circuit layer.