Decoupling method, appratus for designing power feeding line, and circuit board

US8990761B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-8990761-B2
Application numberUS-201214007892-A
CountryUS
Kind codeB2
Filing dateMar 28, 2012
Priority dateMar 29, 2011
Publication dateMar 24, 2015
Grant dateMar 24, 2015

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Abstract

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A method includes: with a setting frequency set as an operating frequency of an LSI, selecting a capacitor having a lowest resonant impedance and a resonant frequency close to the setting frequency with reference to a capacitor characteristic database and installing one or more capacitors, each being the selected capacitor, as high frequency decoupling capacitors, the number thereof corresponding to a value obtained by dividing the upper limit of the power feeding line impedance by a resonant impedance of the capacitor.

First claim

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The invention claimed is: 1. A decoupling method for decoupling for a circuit board having an LSI (Large Scale Integrated Circuit) mounted thereon, the method comprising: (a) a data processing apparatus deriving a maximum area of a power feeding line supplying power to at least the LSI, for an operating frequency of the LSI, based on design information of the circuit board; (b) the data processing apparatus deriving an upper limit of a power feeding line impedance, based on the…

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What does patent US8990761B2 cover?
A method includes: with a setting frequency set as an operating frequency of an LSI, selecting a capacitor having a lowest resonant impedance and a resonant frequency close to the setting frequency with reference to a capacitor characteristic database and installing one or more capacitors, each being the selected capacitor, as high frequency decoupling capacitors, the number thereof correspondi…
Who is the assignee on this patent?
Kashiwakura Kazuhiro, Nec Corp
What technology area does this patent fall under?
Primary CPC classification H05K1/18. Mapped technology areas include Electricity.
When was this patent published?
Publication date Tue Mar 24 2015 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
What related patents are in patentsdb?
We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).