LSIパッケージ導体のインダクタンス計算

概要

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This paper presents the methods for calculating the inductance of a conductor in an LSI package that includes micro-strip lines. The first method, for calculation the mutual inductance and external self-inductance, is based on Neumann's formula and the internal self-inductance is calculated by Maxwell's law. In this method, the micro-strip line is simulated by supposing that the mirror image conductor is based to the surface of the plane. The second method is based on Poisson's equation by the finite element method. The magnetic flux passing through the plane is decreased from 77% to 0.2% by the magnetic shield effect on the model when the frequency is increased from 1 MHz to 1 GHz. The inductance of the specimen is calculated by the two methods and measured. The difference between the values given by the two calculation methods is less than 2.4%, and the difference between the calculated value and measured value is less than 15.5% in the frequency range 0.1 MHz to 1 GHz.
社団法人日本磁気学会の論文
1998-04-15