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Column: by Istvan Novak
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Do Bypass Capacitors Change Plane Resonances?
My friend Greg recently asked me, "If I add surface-mount capacitors to a bare pair of planes, I am told that the resonant frequency will drop. On the other hand, someone with expertise is telling me that this is not the case. What would you expect to see?" As happens many times, both observations have elements of the truth in them, and a third scenario is not out of the question.
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Featured Videos: RealTime with... PCBDesign007 - Coverage of DesignCon 2012 |
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Hot PCB? Cool Tool!
Patrick Carrier of Mentor Graphics describes how power planes can be robbed of current-carrying capacity and how the HyperLynx PI analysis tool can show what's hot and what's not.
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Business Drivers for Next-Gen Materials
It's said that nothing happens in a vacuum. Oak-Mitsui's Bob Carter explains how advancements to the next generation in one component often drive changes in other parts, including materials developed by Oak-Mitsui.
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Column: by Doug Brooks
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Crosstalk, Part 2: What It Looks Like
In Part 1 of this series, I pointed out that many people seemed to find the concept of crosstalk difficult to wrap their arms around. This column, Part 2, of the series, we will look more closely at the shapes of the two crosstalk components. In Part 3 of the series, we will look even more closely at the shape and the magnitude of the backward crosstalk component.
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Design News & Additional Information
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Watch Our Full Coverage of DesignCon 2012
DesignCon 2012 is history, but if you couldn't make the show, don't fret. We have full video coverage of this essential Silicon Valley engineering event. From the leading-edge technical conference to the packed exposition, our Real Time program brings it all to you.
SiSoft, IBM Give Paper on Advanced IBIS-AMI Modeling
SiSoft will present a paper with IBM at the IBIS Summit meeting at DesignCon. The paper is entitled "IBM IBIS-AMI 15G Chip to Chip Cu032 model using Dependency Tables" and discusses extensions to the IBIS-AMI specification that reduce the size and complexity of IBIS-AMI models to simplify the system designer's task of running design simulations.
Intercept Launches Pantheon 7
The new Pantheon includes a completely redesigned user interface with significant performance and productivity increases. The last 15 years of Pantheon's development as an advanced PCB/hybrid/RF design application has converged with a modern user flow to provide major productivity increases for all engineers and designers.
3M Launches High-Density ECM at DesignCon 2012
3M today announced the initial availability of its high-capacitance Embedded Capacitance Material at DesignCon 2012, which allows design engineers a new way to greatly improve power integrity and reduce electromagnetic interference.
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For all the latest Printed Circuit Board Design news and information, go to PCBDesign007 right now! |
