Eric Bogatin, Signal Integrity Journal Technical Editor

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Copper loss is one ingredient in interconnect loss. Surface texture or roughness has long been recognized as adding an excess loss over smooth copper. With the SI-VSP (very smooth profile) copper foils recently introduced by Mitsui Mining&Smelting Co. Ltd. (Mitsui Kinzoku), we may have reached the limits.

Over the years, I have presented to and worked with thousands of engineers, from very young to very old. Many of the problems they bring to me have a small set of common answers. I’ve collected these into 20 basic rules of engineering.

“There are two kinds of engineer, those who are building antennas on purpose and those who are not doing it on purpose.” Every oscilloscope ships with at least two 10x probes. They are ubiquitous in every lab. But they have a significant problem above 10 MHz, unless care is taken. In some cases, we can turn this problem into a feature.

One reason I enjoy attending a conference is the opportunity to browse presentations I would not ordinarily see. I always pick up something new and useful. Here are some from my recent visit to the IEEE EMC Symposium.

One decision launched Todd Hubing on his current career path and has had a profound impact on the direction the EMC industry has taken over the last 35 years. Here's a summary of my interview with Todd.

On the first day of the 2019 IEEE EMC Symposium, Louann Mlekodaj, Eriko Yamato, Patrick DeRoy and other members of the EMC YP committee organized a Jeopardy game for the Young Professionals Group. As fitting the format of the Jeopardy show at an EMC event, answer categories covered, of course, EMC, SI and PI topics. Read on to test yourself!

Read on for a history of Touchstone and find out how you can shape its next iteration.

Just because someone has a VNA capable of 60 GHz bandwidth doesn’t mean it will always give the same results. It is not the instrument, but the measurement procedure that seems to influence the quality of the measurements the most.  Read on for information on a recent study from Jason Ellison, Heidi Barnes, and Jose Moreira  as well as 7 tips for improving your measurements.