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:
May. 14, 2013
Filed:
Aug. 21, 2008
Cheng-hsien Lin, Taipei Hsien, TW;
Yao-wen Bai, Shenzhen, CN;
Rui Zhang, Shenzhen, CN;
Wen-chin Lee, Taipei Hsien, TW;
Cheng-Hsien Lin, Taipei Hsien, TW;
Yao-Wen Bai, Shenzhen, CN;
Rui Zhang, Shenzhen, CN;
Wen-Chin Lee, Taipei Hsien, TW;
Tsinghua University, Beijing, CN;
Hon Hai Precision Industry Co., Ltd., New Taipei, TW;
Abstract
A pre-plating solution for making a printed circuit board includes carbon nanotubes of 0.01-3 wt %, a surfactant of 0.01-4 wt %, an alkaline substance of 0.01-1 wt % and a solvent. A method for preparing a pre-plating solution comprising the steps of: providing a plurality of carbon nanotubes; purifying the carbon nanotubes; treating the purified carbon nanotubes with an acid; mixing the treated carbon nanotubes, an alkaline substance and a solvent to form suspension; and adding surfactant into suspension.