Method and apparatus for analyzing electromagnetic interference
First Claim
1. A method of analyzing electromagnetic interference in which an amount of electromagnetic interference from an LSI is analyzed, wherein said method includes:
- an equivalent power source current information calculating step of calculating information of an equivalent power source current flowing in a power source current, from circuit information of said LSI;
an estimating step of considering at least one of power source information of a power source for supplying a current to said LSI package information of a package for said LSI, and measurement system information of a measurement system for measuring characteristics of said semiconductor chip, as analysis control information, and of estimating total information in which said analysis control information is reflected in said circuit information, as an equivalent circuit; and
a total information analyzing step of performing analysis in accordance with said total information which is estimated in said estimating step.
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Abstract
A method of analyzing electromagnetic interference in which an amount of electromagnetic interference from an LSI is analyzed, wherein the method includes: an equivalent power source current information calculating step of calculating information of an equivalent power source current flowing in a power source current, from circuit information of the LSI chip; an estimating step of considering at least one of power source information of a power source for supplying a current to the LSI chip, package information of a package for the semiconductor chip, and measurement system information of a measurement system for measuring characteristics of the semiconductor chip, as analysis control information, and of estimating total information in which the analysis control information is reflected in the circuit information, as an equivalent circuit; and a total information analyzing step of performing analysis in accordance with the total information which is estimated in the estimating step.
35 Citations
28 Claims
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1. A method of analyzing electromagnetic interference in which an amount of electromagnetic interference from an LSI is analyzed, wherein said method includes:
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an equivalent power source current information calculating step of calculating information of an equivalent power source current flowing in a power source current, from circuit information of said LSI;
an estimating step of considering at least one of power source information of a power source for supplying a current to said LSI package information of a package for said LSI, and measurement system information of a measurement system for measuring characteristics of said semiconductor chip, as analysis control information, and of estimating total information in which said analysis control information is reflected in said circuit information, as an equivalent circuit; and
a total information analyzing step of performing analysis in accordance with said total information which is estimated in said estimating step. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25)
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26. An apparatus for analyzing electromagnetic interference in which an amount of electromagnetic interference from an LSI is analyzed, wherein said apparatus includes:
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equivalent power source current information calculating means for calculating information of an equivalent power source current flowing in a power source current, from circuit information of said LSI;
estimating means for considering at least one of power source information of a power source for supplying a current to said LSI, package information of a package for said LSI, and measurement system information of a measurement system for measuring characteristics of said semiconductor chip, as analysis control information, and for estimating total information in which said analysis control information is reflected in said circuit information, as an equivalent circuit; and
total information analyzing means for peforming analysis in accordance with said total information which is estimated in said estimating means. - View Dependent Claims (27, 28)
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Specification