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:
Mar. 05, 2024
Filed:
Apr. 07, 2022
Western Digital Technologies, Inc., San Jose, CA (US);
Lin Hui Chen, Taichung, TW;
Songtao Lu, Shanghai, CN;
Chien Te Chen, Taichung, TW;
Yu Ying Tan, Taichung, TW;
Huang Pao Yi, Taichung, TW;
Ching Chuan Hsieh, Taichung, TW;
T. Sharanya Kaminda, Bengaluru, IN;
Chia-Hsuan Huang, Huang, TW;
Western Digital Technologies, Inc., San Jose, CA (US);
Abstract
Devices and methods are described for reducing etching due to Galvanic Effect within a printed circuit board (PCB) that may be used in an electronic device. Specifically, a contact trace is coupled to a contact finger that has a substantially larger surface area than the contact trace. The contact finger is configured to couple the electronic device to a host device. The contact trace is electrically isolated from the rest of the PCB circuitry during a fabrication process by a separation distance between an exposed portion of the contact trace and an impedance trace. The contact finger and the exposed portion of the contact trace are plated with a common material to reduce galvanic etching of the contact trace during fabrication. The contact trace is then connected to the impedance trace using a solder joint.