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:
Apr. 01, 2025
Filed:
Jan. 31, 2024
Champ Tech Optical (Foshan) Corporation, Foshan, CN;
Li-Ping Wang, Foshan, CN;
Yung-Ping Lin, New Taipei, TW;
Yong-Kang Zhang, Shenzhen, CN;
Qiu-Ri Zhang, New Taipei, TW;
You-Zhi Lu, Foshan, CN;
CHAMP TECH OPTICAL (FOSHAN) CORPORATION, Foshan, CN;
Abstract
A circuit board with anti-corrosion properties, a method for manufacturing the circuit board, and an electronic device are provided. The circuit board includes a circuit substrate, a first protective layer, and a second protective layer. The circuit substrate includes a base layer and an outer wiring layer formed on the base layer. The circuit substrate further defines a via hole connected to the outer wiring layer. The first protective layer is formed on the outer wiring layer and an inner sidewall of the via hole, and is made of a white oil. The second protective layer is formed on the first protective layer.