A semiconductor integrated circuit in which a plurality of cells having respectively given functions are arranged in a first direction and a second direction, which is orthogonal to the first direction,
- wherein power source lines are arranged on peripheral portions of a cell while extending in the first direction,
- wherein the power source lines arranged on the peripheral portions of the cell are laid out at positions spaced away in the second direction from a boundary defined between cells which are arranged close to each other in the second direction,
- wherein the power source lines in the peripheral portions of the cells are formed by embedding copper films into grooves formed in an insulation film,
- wherein the power source lines are applied the same voltage, respectively, and
- wherein the power source lines of cells which are arranged close to each other include bridging portions which are bridgeable between the power source lines.