| 摘要 |
PROBLEM TO BE SOLVED: To provide a printed circuit board having a function for shutting off conductive state of a wiring pattern by melting for a specified period, regardless of the thickness and the length of the wiring pattern. SOLUTION: The printed circuit board includes a pair of lands 2, provided to a wiring pattern 3 near the connection part of an electronic component 5, to face each other across a gap 7, and a low melting point metal 1 for connecting the pair of lands 2 together by bridging the gap 7. The heat that is produced, when an overcurrent flows in the electronic component 5 melts the low melting point metal 1 so that the pair of lands 2 are separated from each other. COPYRIGHT: (C)2010,JPO&INPIT
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