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Lot traceable printed circuit board

  • US 7,576,287 B2
  • Filed: 02/12/2007
  • Issued: 08/18/2009
  • Est. Priority Date: 12/20/2006
  • Status: Active Grant
First Claim
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1. A lot traceable printed circuit board (PCB) comprising:

  • a substrate having a patterned circuit layer thereon; and

    a working zone carrying production information related to said PCB and comprising a plurality of code boxes, wherein each of said code boxes has a first probe region and a second probe region, and said first probe region has a single set of resistance test loop and said second probe region has four sets of resistance test loops, wherein said production information in said working zone is abstracted by a frying probe tester through probing the set of resistance test loops, respectively.

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