Method for obtaining inductor models in integrated circuits

Abstract

The invention provides a method for obtaining inductor models in integrated circuits, which comprises the following steps: providing parameters from X1, X2 to Xn of a plurality of groups of inductors and an inductor feature value; changing the parameter X1 into a plurality of different numerical values to obtain the functional relationship between the inductor feature value and the parameter X1, wherein the expression of the functional relationship comprises coefficients from a1, a2 to ai; changing the parameter X2 into a plurality of different numerical values, and repeating the former stepsunder each numerical value to obtain the functional relationship between the coefficients from a1, a2 to ai, wherein the expression of the functional relationship comprises coefficients from b1, b2 to bj; and changing other parameters through imitating the former steps; obtaining the expression of the functional relationship between the inductor feature value and the parameters from X1, X2 to Xn, wherein the expression is the inductor model. The invention has the advantages that complicated formulas and calculation are not needed, and the manufacture efficiency is improved.

Description

【Technical field】 [0001] The invention relates to an integrated circuit manufacturing method, in particular to a method for obtaining the relationship between the inductance characteristic value and the inductance parameter in the integrated circuit. 【Background technique】 [0002] In today's integrated circuit design field, the development of radio frequency integrated circuits (RFICs) is very rapid. As an important passive device, spiral inductor has been widely used in this field. However, in the practical application of radio frequency integrated circuits, a relatively complete inductance model has not yet been established because of the complexity of the calculation. [0003] The common method to solve the parameters of the inductance model is the physical model method. These methods of using the physical model to calculate the parameter value are insufficient in accuracy because the various technological processes are very complicated, and many physical effects are di...

AI Technical Summary

Problems solved by technology

However, in the practical application of radio frequency integrated circuits, due to the complex calculation, a relatively complete inductance model has not yet been established.

[0003] The common method to solve the parameters of the inductance model is the physical model method. These methods of using the physical model to calculate the parameter value are insufficient in accuracy because the various technological processes are very complicated, and many physical effects are difficult to completely express with physical formulas. place

In order to improve the accuracy of the model, it is necessary to do complex calculations for high-order parasitic effects, so the formulas and calculation processes used are often tedious and lengthy, which is very inconvenient

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