Patent ID: 8168895

Claim:
A laminated printed wiring board comprising: a first conductor layer in which a first power supply wiring is formed; a second conductor layer in which a second power supply wiring is formed; and a series of at least three via holes arranged in a longitudinal direction of the first and second power supply wirings and connecting an end area of the first power supply wiring to an end area of the second power supply wiring, wherein the end area of the first power supply wiring comprises: a first portion defined between a first via hole which is closest from the end of the first power supply wiring and a next via hole of the first via hole in the series of via holes; and a second portion defined between a last via hole which is closest from the end of the second power supply wiring and a next via hole of the last via hole, the end area of the second power supply wiring is arranged such that it comprises: a first portion defined between the last via hole and a next via hole of the last via hole in the series of via holes; and a second portion defined between the first via hole and the next via hole of the first via hole, and the first portion of the end area of the first power supply wiring has a larger resistance value than the second portion of the end area of the first power supply wiring, and the first portion of the end area of the second power supply wiring has a larger resistance value than the second portion of the end area of the second power supply wiring.