Articles by Eric Bogatin

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Utilizing Fine Line PCBs with High Density BGAs

With the recent introduction of the Averatek Semi-Additive Process (A-SAP) process, linewidths under 1 mil are possible using the same fabrication processing line as for traditional 4 mil wide lines. This opens up the possibility of using narrower traces in the BGA escape region than in long-path routing regions. However, using this routing architecture means the narrower traces in the BGA escape field are at a higher impedance than the wider, 50 ohm traces in the routing region. So, how long can these traces be before the impedance mismatch is a problem? The authors of this piece propose an analysis methodology to find out.


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Eight Tips on Giving a Presentation

Now that I am teaching full time and have a number of undergraduate and graduate students doing weekly project reviews, I listen to more presentations than I give. I find myself giving the same feedback over and over again. So, I thought I would share my eight most common comments and tips to engineers giving presentations.


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Ansys Releases Free Electronics Desktop Student Product Download

In the January 2021 print issue and the April 2021 online issue of the Signal Integrity Journal, I wrote an editorial in which I threw down a gauntlet to tool vendors to offer low cost or free versions of their tools to help engineers accelerate up the learning curve. Ansys picked up that gauntlet and now offers a free version of their industry standard electromagnetic simulator suite, Electronics Desktop. 


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Multifunction instrument released by Liquid Instruments

Fans of a single, multifunction instrument that replaces a dozen benchtop instruments will be excited with the release from Liquid Instruments. Here’s a closer look at this multi-function instrument that combines the features of a bench top full of instruments, like a scope, a DMM, a function generator, a frequency response analyzer, a spectrum analyzer, and even an impedance analyzer, all into one USB controlled instrument. 


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