This paper deals with area minimization of power network for very large-scale integration designs. A new algorithm based on efficient nonlinear programming techniques is presented to solve this problem. During the optimization, a penalty method, conjugate gradient method, circuit sensitivity analysis, and merging adjoint networks are applied, which enables the algorithm to optimize large circuits. The experiment results prove that this algorithm is robust and can achieve the objective of minimizing the area of power network in a short runtime.

This paper deals with area minimization of power distribution networks for VLSIs. A new algorithm based on efficient nonlinear programming techniques is presented to solve this problem. Experimental results prove that this algorithm has achieved the objectives of minimizing the area of power/ground networks with higher speeds.

This paper deals with the design and optimization of mesh-based power/ground network for cell-based VLSIs with macro cells. These macro cells absorb a lot of current, furthermore, the current that each pin of the macro cell absorbs is not known, which introduces a new problem to the design of power routing. This problem has not been discussed so far. In this paper, a new algorithm is presented to solve this problem. The algorithm includes 3 sub-algorithms: searching feasible solution, cutting branches and minimizing strap width. The algorithm has achieved the object of minimizing the area of power straps with high running speed.