Method and system for self-adaptive determination of ultra-wideband resonance response of integrated circuit

Abstract

The invention relates to an adaptive determination method and system for an integrated circuit ultra-wideband resonance response. The method includes: taking the resonant frequency point as the dividing point, dividing it into a plurality of simulation sub-frequency bands, determining the initial frequency point of each simulation sub-frequency range; using the coarse-grained parallel method to calculate the electromagnetic Response, determine the electromagnetic response sequence; determine the sampling step of the third cubic spline interpolation curve of each simulation sub-frequency band according to the two cubic spline interpolation curves in each simulation sub-frequency band; determine the sampling step size of each simulation sub-frequency band according to the sampling step Newly inserted frequency points between the initial frequency points in the frequency band; determine the electromagnetic response of all newly inserted frequency points using the coarse-grained parallel calculation method, and determine the resonance response curve of each simulation sub-frequency band; merge the resonance response curves of all simulation sub-frequency bands Generate ultra-wideband resonant response curves for integrated circuits. The invention accurately calculates the ultra-wideband resonant response of the integrated circuit and reduces the calculation time cost.

Description

technical field [0001] The invention relates to the field of integrated circuit design, in particular to a method and system for adaptively determining the ultra-wideband resonant electromagnetic response of an integrated circuit. Background technique [0002] For the ultra-broadband electromagnetic field calculation problem of multi-layer VLSI, the frequency range that needs to be calculated includes a wide frequency range from several kHz to several GHz. As the minimum feature size of multi-layer VLSI is reduced to the nanometer level, integrated circuits The operating frequency reaches several GHz, and the crosstalk, voltage drop, signal delay, noise and other problems caused by parasitic effects between layers, vias, interconnections, etc. are becoming more and more serious. It is very necessary to analyze the electromagnetic response in a wide frequency band. Due to the multi-scale structure of multi-layer VLSI with a minimum feature size of nanometers and a maximum si...

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Problems solved by technology

[0003] The purpose of the present invention is to provide an adaptive method and system for determining the ultra-wideband resonant electromagnetic response of an integrated circuit, so as to solve the problem that the number of sampling points of the frequency cannot reach Thousands of problems that lead to low calculation accuracy, and high calculation time costs

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