US Patent 9935052 Power line layout in integrated circuits

Circuitry having power lines with comparable path resistances may include input-output blocks in an integrated circuit (IC) that are coupled to respective sets of bumps on the IC. The circuitry may have a core region and a periphery region. Groups of input-output blocks may be formed in the periphery region. A first set of power lines in the circuitry extends from the core region to the first group of input-output blocks whereas a second set of power lines in the circuitry extends from the core region to the second group of input-output blocks. The first and second sets of power lines are physically separate from each other.