Power supply wiring structure

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.