| 摘要 |
PROBLEM TO BE SOLVED: To provide a printed circuit board having no tendency to cause a short circuit by soldering between land parts or between end-face through holes when soldered to fix to a mother board. SOLUTION: The printed circuit board has at least one recesses sagging from one side to an inner side of the printed circuit board and at least one protrusions of the end face other than the recesses at least on one side. The end-face through holes are arranged at the end face in the recesses and at the end face of the protrusion. COPYRIGHT: (C)2006,JPO&NCIPI
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