Lot traceable printed circuit board
US7576287B2 · kind B2 · utility
1Cited by
7References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 12, 2007 |
| Grant date | Aug 18, 2009 |
| Priority date | — |
| Expiry date | Apr 30, 2028 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05K2201/09927
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.