Patent ID: 8751992

Claim:
A power supply wiring structure, comprising: a first lower-layer power supply wire and a second lower-layer power supply wire extended in a first direction in a lower wiring layer; a first upper-layer power supply wire and a second upper-layer power supply wire extended in a second direction substantially perpendicular to the first direction in a plane view in an upper wiring layer; a first connection portion connecting the first upper-layer power supply wire and the first lower-layer power supply wire; and a second connection portion connecting the second upper-layer power supply wire and the second lower-layer power supply wire, wherein the first connection portion includes: a first connection wire formed in a predetermined wiring layer between the lower wiring layer and the upper wiring layer and positioned above the first lower-layer power supply wire, a first lower-side via that is provided below the first connection wire, and connects the first connection wire and the first lower-layer power supply wire, a first position converting wire connected to the first connection wire and extending along the second direction, and a first upper-side via that is provided above the first position converting wire, and connects the first position converting wire and the first upper-layer power supply wire, the second connection portion includes: a second connection wire formed in the predetermined wiring layer and positioned above the second lower-layer power supply wire, a second lower-side via that is provided below the second connection wire, and connects the second connection wire and the second lower-layer power supply wire, a second position converting wire connected to the second connection wire, extending along the second direction, and provided closer to the second upper-layer power supply wire than the first connection wire in the plane view, and a second upper-side via that is provided above the second position converting wire, and connects the second position converting wire and the second upper-layer power supply wire, the first upper-side via and the second upper-side via are arranged in a same line along the first direction.