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:
Aug. 18, 2009
Filed:
Feb. 12, 2007
Hsing-lun Lo, Taipei, TW;
Hsien-chieh Lin, Taoyuan County, TW;
Kuo-chun Chiang, Taoyuan, TW;
Shing-fun Ho, Taipei, TW;
Hsing-Lun Lo, Taipei, TW;
Hsien-Chieh Lin, Taoyuan County, TW;
Kuo-Chun Chiang, Taoyuan, TW;
Shing-Fun Ho, Taipei, TW;
Nan Ya Printed Circuit Board Corporation, Luchu, Taoyuan, TW;
Abstract
A lot traceable printed circuit board (PCB) includes a substrate having thereon a patterned circuit layer and a working zone carrying production information related to the PCB itself. The working zone includes a plurality of code boxes, wherein each of the code boxes has a first probe region and second probe region. A single set of resistance test loop is disposed within the first probe region. Four sets of resistance test loops are disposed within the second probe region. A frying probe tester is used to probe the set of resistance test loops respectively for abstracting the production information recorded in the working zone.