Patent ID: 7969014

Claim:
A power layout of an integrated circuit, comprising: a semiconductor layer; a plurality of electronic components, formed on the semiconductor layer; N successive metal layers from bottom to top, isolated from each other and formed over the semiconductor layer, N being a positive integer, and Nth metal layer being the top metal layer; a power distribution network comprising a plurality of metal rails and being coupled to the electronic components, the power distribution network being formed from among (i−1)th metal layer to the bottom metal layer; a power mesh comprising a plurality of metal trunks, the metal trunks being formed among the Nth metal layer to ith metal layer, the metal trunks being mutually interconnected by a plurality of first vias, and being connected to the metal rails by a plurality of second vias, i being a positive integer smaller than N; and a power supply ring comprising a plurality of metal rings, the metal rings being formed by parts of the metal trunks that are densely concentrated, the power supply ring receiving a power and conducting the power to the power distribution network through the power mesh and further distributing the power to the electronic components, wherein a metal ring forming the power supply ring has a same line width as a metal trunk forming the power mesh.