| 摘要 |
PROBLEM TO BE SOLVED: To provide a mounting method of a capacitor for EMI (Electro Magnetic Interference) countermeasures, capable of reducing the number of bypass capacitors added for resonance countermeasures, reducing costs, and contributing to improving efficiency of resonance countermeasure work.SOLUTION: In a mounting method of a capacitor for EMI countermeasures in a multilayer printed wiring plate where a ground layer, a power source layer and a signal layer are laminated, and each layer interval is electrically connected to each other by a via to be a hole, among a plurality of pattern layouts of a lead-out pattern led out from the capacitor for EMI countermeasures to the ground layer and the power source layer, a pattern layout having small inductance L in the lead-out pattern is selected and mounted. |
