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:
Oct. 23, 2012
Filed:
Jul. 09, 2008
Cheng-po Yu, Taoyuan County, TW;
Cheng-hung Yu, Taoyuan County, TW;
Cheng-Po Yu, Taoyuan County, TW;
Cheng-Hung Yu, Taoyuan County, TW;
Unimicron Technology Corp., Taoyuan, TW;
Abstract
A circuit board including a first dielectric layer having a first surface and a second surface, a first circuit layer, a second dielectric layer, and a second circuit layer is provided. At least one trench is formed on the first surface, and the first circuit layer is formed on an inside wall of the trench. In addition, the second dielectric layer is disposed in the trench, and covers the first circuit layer. The second circuit layer is disposed in the trench, and the second dielectric layer is located between the first circuit layer and the second circuit layer. A manufacturing method of the circuit board is further provided.