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:
Dec. 01, 2020
Filed:
Nov. 11, 2019
Applicant:
Unimicron Technology Corp., Taoyuan, TW;
Inventors:
Assignee:
UNIMICRON TECHNOLOGY CORP., Taoyuan, TW;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H05K 1/02 (2006.01); H05K 3/00 (2006.01); H05K 3/24 (2006.01); H05K 3/06 (2006.01); H05K 3/28 (2006.01); H05K 1/11 (2006.01);
U.S. Cl.
CPC ...
H05K 3/007 (2013.01); H05K 3/243 (2013.01); H05K 1/0269 (2013.01); H05K 1/0284 (2013.01); H05K 1/11 (2013.01); H05K 3/06 (2013.01); H05K 3/28 (2013.01); H05K 2201/0376 (2013.01); H05K 2203/163 (2013.01);
Abstract
A circuit board is disposed on a substrate and includes a dielectric layer and a circuit layer. The dielectric layer is disposed on the substrate. The circuit layer is embedded in the dielectric layer and has plural traces. Each of the traces has a first top surface and a first bottom surface which are opposite to each other, and the first bottom surface faces toward the substrate. The first top surface is exposed from the dielectric layer, and an area of a vertical projection of the first top surface on the substrate is smaller than an area of a vertical projection of the first bottom surface on the substrate.