PRINTED CIRCUIT BOARD THAT CAN IDENTIFY MANUFACTURING INFORMATION

摘要

PROBLEM TO BE SOLVED: To provide a printed circuit board that can identify manufacturing information. SOLUTION: A printed circuit board includes a substrate on which a patterned wiring layer is formed and a working area that records manufacturing information related to the printed board. The working area includes a plurality of code frames. Each code frame includes a first probe area including set of resistance test loops and a second probe area including four sets of resistance test loops. The manufacturing information recorded in the working area is read by a resistance measuring device measuring whether each resistance test loop in the first probe area and the second probe area is conductive. COPYRIGHT: (C)2008,JPO&INPIT