Printed circuit board, printed circuit board module and electronic device adapting same

摘要

A printed circuit board includes a ground layer, a power supply layer divided into a plurality of lands, a dielectric layer disposed so as to cover the plurality of lands of the power supply layer, and a conductor layer disposed so as to cover the dielectric layer. The plurality of divided lands are coupled to each other by electrostatic capacitors formed by each of the lands of the power supply layer and the conductor layer sandwiching the dielectric layer therebetween.