Method and layout of an integrated circuit

A cell layout, comprising:

• a P-type active region and an N-type active region;
• a plurality of trunks formed substantially side-by-side, and substantially parallel with each other;
• a first metal connection and a second metal connection;
• and
• a VDD power supply line and a VSS power supply line,
• wherein
• the first metal connection is substantially disposed over the P-type active region, and is electrically connected with drain regions of PMOS transistors in the P-type active region;
• the second metal connection is substantially disposed over the N-type active region, and is electrically connected with drain regions of NMOS transistors in the N-type active region;
• the VDD power supply line is electrically connected with source regions of the PMOS transistors in the P-type active region;
• the VSS power supply line is electrically connected with source regions of the NMOS transistors in the N-type active region;
• each trunk of the plurality of trunks is electrically connected with the first metal connection and the second metal connection;
• each trunk of the plurality of trunks is substantially perpendicular to the first metal connection and the second metal connection;
• each trunk of the plurality of trunks is substantially perpendicular to the VDD power supply line and the VSS power supply line;
• and
• a first trunk of the plurality of trunks has a width wider than a width of other trunks of the plurality of trunks and is arranged to be located between two groups of trunks.

A method of configuring an integrated circuit layout, comprising:

• forming a plurality of trunks, each trunk of the plurality of trunks coupled with and perpendicular to a first metal line and a second metal line, the first metal line being coupled with drain regions of a plurality of PMOS transistors, the second metal line being coupled with drain regions of a plurality of NMOS transistors;
• arranging, using a processor, a first trunk of the plurality of trunks to be located between two groups of trunks of the plurality of trunks, wherein a width of the first trunk is substantially larger than widths of other trunks of the plurality of trunks;
• and
• connecting the first metal line and the second metal line to an output port.