Integrated circuit full-wave electromagnetic simulation method and system under lossy and dispersive medium
An integrated circuit, electromagnetic simulation technology, applied in the direction of electrical digital data processing, instrumentation, calculation, etc., can solve problems such as failure, and achieve the effect of solving failure problems, accurate simulation results, and solving continuity problems
Active Publication Date: 2021-12-31
北京智芯仿真科技有限公司
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[0008] Based on this, in order to solve the failure problem of the existing solver for the low frequency of the integrated circuit in a lossy and dispersive medium, and to obtain the electromagnetic field of the integrated circuit in the full frequency band including the low frequency, the application discloses the following Technical solutions
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[0102] In order to make the purpose, technical solution and advantages of the application more clear, the technical solution in the embodiment of the application will be described in more detail below in conjunction with the drawings in the embodiment of the application.
[0103] Refer below figure 1 The embodiment of the full-wave electromagnetic simulation method for integrated circuits under lossy and dispersive media disclosed in this application is described in detail.
[0104] Such as figure 1 As shown, the method disclosed in this embodiment includes steps 100 to 600 as follows.
[0105] Step 100, acquiring model information of VLSI and modeling the integrated circuit accordingly. Wherein, the model information includes layer information of the integrated circuit, layout information of each layer, via information and netlist information.
[0106] When performing electromagnetic simulation of VLSI, you can first read the chip design file to obtain the above model info...
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This application discloses a full-wave electromagnetic simulation method and system for an integrated circuit in a lossy and dispersive medium. Firstly, the material forming a multilayer integrated circuit is divided into a non-conductive medium and a conductive medium. The grid nodes are numbered according to the medium area where they are located, and then the vector finite element system equations under lossy and dispersive media are established. Based on the numbering results of the grid nodes, the finite element unknowns are divided, and based on the finite element system equations through iteration The method calculates the reference frequency of the integrated circuit and its field solution, and divides the field solution into blocks, and then obtains the scaling factor between the field solution of the reference frequency and the field solution of the frequency point to be found lower than the reference frequency, and the field solution based on the reference frequency The field solution at the frequency to be sought is obtained by using the solution and the scaling factor, and finally the electromagnetic response of the full frequency band is obtained based on the field solutions at all the frequencies to be sought. This method can calculate the reference frequency of the full-wave analysis, and realize the solution of the low-frequency point field solution based on the reference frequency.
Description
technical field [0001] The present application relates to the technical field of electromagnetic simulation, in particular to an integrated circuit full-wave electromagnetic simulation method and system under lossy and dispersive media. Background technique [0002] VLSI has an obvious multi-scale structure, and its scale ranges from centimeter level ( ) ~ nanoscale ( ), the scale ranges up to 7 orders of magnitude. On the other hand, the signals transmitted by integrated circuits often have the characteristics of full-wave transmission, and its transmission frequency range covers from DC to several GHz. This problem is particularly prominent in the application of integrated circuits for digital and mixed signal transmission. Therefore, for the electromagnetic field analysis of integrated circuits, full-wave electromagnetic field analysis is required, and a full-wave electromagnetic field solver is required to solve the electromagnetic field of integrated circuits. [0...
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IPC IPC(8): G06F30/3308G06F30/398
Inventor 王芬
Owner 北京智芯仿真科技有限公司