| 摘要 |
PROBLEM TO BE SOLVED: To provide an electronic controller of excellent reliability, capable of suppressing displacement of a solder bump of an electronic component even if affected by impact, vibration, or heat. SOLUTION: In the electronic controller, a printed wiring board 1 which is a circuit board comprising an electronic component 5 having a solder bump and an electric circuit part where a wiring circuit pattern is formed is provided with a displacement suppressing means that damps vibration applied to the electronic component 5 by contacting to the printed wiring board 1 at a near part where the electronic component 5 is mounted. The displacement suppressing means acts also as a substrate fixing part 12 which is provided to a case 2 for securing the printed wiring board 1 to the case 2. COPYRIGHT: (C)2012,JPO&INPIT
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