Arranging chip capacitors (20) in a printed wiring board (10) makes it possible to reduce the distance between an IC chip (90) and the chip capacitor (20) and to reduce the loop inductance.

• 因为在印刷布线板10内设置了片状电容器20，所以能够缩短IC芯片90与片状电容器20的距离，降低环线电感。