Patent ID: 7336501

Claim:
A wiring board with built-in capacitors, that has a multilayer wiring structure and capable of mounting an IC chip thereon, said wiring board with built-in capacitors comprising: a first capacitor that is built into the multilayer wiring structure and formed so that an overlapping area between a first lower electrode and a first upper electrode provided on respective surfaces of a first dielectric layer is a predetermined area; a second capacitor that is built into the multilayer wiring structure along the same plane as the first dielectric layer and formed so that an overlapping area between a second lower electrode and a second upper electrode provided on respective surfaces of a second dielectric layer with the same thickness as the first dielectric layer is different from the predetermined area; a line that electrically connects either one of a power pad for supplying power to the IC chip and a ground pad for grounding the IC chip to either one of the first lower electrode and the second lower electrode; and a line that electrically connects the other of the power pad and the ground pad to the other of the first upper electrode and the second upper electrode.