Extraction for Multilayer Ceramic Capacitor Vibration Induced Force

Due to the piezoelectric characteristic of the MLCC dielectric BaTiO 3 , the multilayer ceramic capacitor (MLCC) can vibrate when the supply voltage has AC components. The vibration of the MLCC will generate a force on the printed circuit board (PCB) it is connected to, causing the PCB to vibrate as well. The MLCC vibration-generated force is extracted using a measurement-simulation-based methodology in this paper. The force of an MLCC is first extracted at the PCB resonance frequencies. Then, a broadband force profile is obtained by using the interpolating method. The extraction methodology can be used in different boundary conditions, on different PCBs, and for different MLCCs with a good generalization.