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:
Jan. 25, 2011
Filed:
Oct. 31, 2008
Vinh T. Nguyen, San Jose, CA (US);
Claude A. S. Hamrick, San Jose, CA (US);
Vinh T. Nguyen, San Jose, CA (US);
Claude A. S. Hamrick, San Jose, CA (US);
Other;
Abstract
A process for making a multi-layered circuit board having electrical current traces includes providing a substrate having a 1layer of conductive material to form a ground plane, plurality of metallic 1traces on a 2side of the substrate having widths of approximately 25 microns or less, developing 1ribs of photoresist forming 1walls rising above upper surface of an adjacent seed layer trace, depositing 1conductive signal traces having a thickness exceeding 25 microns into channels and over seed layer traces and stripping the ribs to leave 1conductive traces having a height-to-transverse ratio exceeding 1.