A method for optimizing that equivalent output of a post-simulation circuit

Abstract

A method for optimizing that equivalent output of post-simulation circuit comprises the follow steps: 1) discriminating the output information required by circuit simulation and filter the equivalentoutput information; 2) storing the RC matrix before optimization in advance; 3) optimize that circuit and storing the optimize node information; 4) updating the RC matrix before optimization and solving to obtain the corresponding output information of the optimized node; 5) outputting the equivalent output information of the node. The method of the equivalent output after optimization of the post-simulation circuit of the invention ensures the integrity of the output according to the equivalence of the post-simulation circuit and realizes user-friendliness.

Description

technical field [0001] The invention relates to the field of integrated circuit automation product design, in particular to a method for equivalently outputting optimized circuits in integrated circuit design. Background technique [0002] The scale of equations in electronic circuits is an important factor restricting the performance of integrated circuit automation products. At present, most of the products on the market will perform various optimizations on the circuit in advance to reduce the scale of the circuit, thereby reducing the complexity of the calculation of the equations. But most of the circuit optimization is subject to various factors, including the influence of circuit output information, these factors will reduce the efficiency of our circuit optimization. As the technology continues to progress toward the nanoscale, the scale of the circuit is also expanding rapidly, and the scale of the problem to be solved is also increasing rapidly. If efficient optim...

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Problems solved by technology

[0004] In order to solve the deficiencies in the prior art, the purpose of the present invention is to provide a method for equivalent output after circuit optimization. Aiming at the lack of output information after circuit optimization in the current integrated circuit automation products, a calculation method is proposed. way to equivalent output method

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