| 摘要 |
PROBLEM TO BE SOLVED: To prevent early degradation of a conductor pattern and its burning out, by increasing a current capacity value with no increase in width dimension of the conductor pattern of which a current capacity value is not sufficiently large without applying this invention. SOLUTION: In a power supply board 1, a solder mound 4 is added to the area across the entire length and width of one conductor pattern 31 forming an electric path where a current is supplied at all times to increase a current value capacitance of the conductor pattern 31, resulting in preventing early degradation and burning out of the conductor pattern 31. The end of the electric path formed by a conductor pattern 41 where the solder mount 4 is added, is connected to the power source line of a harddisc drive 7 as a recording medium, through a connector 5. COPYRIGHT: (C)2008,JPO&INPIT
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