| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a vibration sensor mounting structure of an RF tag for lowering parts height when mounting a vibration sensor on a circuit board, and preventing a short circuit between lead electrodes. <P>SOLUTION: A rectangular insertion hole 20 is formed in a circuit board 14 to embed a vibration sensor 1 arranged such that lead electrodes 3 are derived from both ends of a cylindrical resin main body 2. A dimension of a pair of opposing sides of the insertion hole 20 is set shorter than a diameter of the cylinder, and a dimension of the other pair of sides is set equal to or larger than an axial length of the cylinder. A predetermined air gap is formed from each side of the insertion hole 20 that has a dimension set shorter than the diameter of the cylinder, and a land 21 is formed for connecting each lead electrode 3 to a wiring pattern. The lead electrode 3 is soldered to the land 21 with the main body 2 inserted into the insertion hole 20. <P>COPYRIGHT: (C)2012,JPO&INPIT |
