Patent ID: 8179689

Claim:
A printed circuit board comprising: a plurality of capacitors each having a first electrode and a second electrode; a grounding wiring pattern having a first chip bonding surface configured to receive a semiconductor device to be bonded thereon, and a first contact surface that is located on an opposite end from the first chip bonding surface and is connected to the first electrode of the capacitors; a power supply wiring pattern having a second chip bonding surface configured to receive the semiconductor device to be bonded thereon, and a second contact surface that is located on an opposite end from the second chip bonding surface and is connected to the second electrode of the capacitors; a reinforcing member made of an insulator and provided on the solder resist layer and having a penetration part configured to accommodate the plurality of capacitors; and an insulating member provided in the penetration part and configured to encapsulate the plurality of capacitors, wherein the plurality of capacitors are coupled in parallel with respect to the grounding wiring pattern and the power supply wiring pattern, and wherein the plurality of capacitors include capacitors having mutually different capacitances.