| 摘要 |
PROBLEM TO BE SOLVED: To provide the manufacturing method of a printed circuit board which inhibits burrs protruded from the end edge of the printed circuit board and is lower in price. SOLUTION: The printed circuit board having a configuration in which a part of a conductive pattern reaches the end edge of the printed circuit board is manufactured by setting a shear line 6 corresponding to the outer shape of the printed circuit board to be obtained on a basic material 10 of the circuit board, by forming the conductive pattern 4 in which a part of the pattern extends to an outside from an inside of the shear line 6, and by shearing the basic material 10 of the printed circuit board at the shear line 6. In the manufacturing method of the printed circuit board, the burrs protruded from the end edge of the printed circuit board are inhibited by providing a fragile portion 21 just near to the inside of the shear line 6 in the extended conductive pattern, before shearing the basic material 10 of the circuit board. COPYRIGHT: (C)2006,JPO&NCIPI
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