PCB Design for Low EMI

Webinar PCB Design for Low EMI by Sierra Circuits

Abstract by Kenneth Wyatt:

As a consultant for over 10 years, I’ve had a chance to perform design reviews or help troubleshoot hundreds of products. In so doing, I’ve realized the root cause of many design issues revolves around the circuit board design. Poor board designs can result in radiated emissions, radiated immunity, and electrostatic discharge (ESD) compliance failures, among others. Bad board designs often result in endless cycles of trial and error mitigation – compliance testing – board spins – and more troubleshooting/mitigation/spins. This drags out the schedule and is very costly.

I’ll explain why reducing circuit loop areas is only part of the solution and to understand proper board design for lowest EMI requires understanding how signals propagate in boards. Once you understand signals move via electromagnetic fields, then board stack-up and trace routing should become very clear and you should be able to design a low-EMI board the first time!

It’s All About the Space: A Tribute to Ralph Morrison

Webinar Ralph Morrison by Sierra Circuits

Abstract by Daniel Beeker, Rick Hartley, Kenneth Wyatt and Elizabeth Morrison:

Unassuming and humble, Ralph Morrison spent his entire career seeking the connection between the world of electronics and the underlying physics. He published his first book in 1967, which became a foundation text for the signal integrity and EMC community. Ralph’s keen understanding of electromagnetic fields and energy management provided a wealth of knowledge which he tried to give to the world. Unfortunately, most of the electrical engineering world failed to recognize this incredible gift. Ralph’s teachings were mostly ignored by academia and industry alike. We will never know the true measure of Ralph’s genius, now that we have lost him. We hope that today, you will get a little closer to understanding his contributions, and take this opportunity to follow in his path to understanding the world of EM physics and use this knowledge to be more successful in your product development. It is all summed up in the following statement from Ralph: “Buildings have walls and halls. People travel in the halls not the walls. Circuits have traces and spaces. Energy and signals travel in the spaces not the traces.”


How to Achieve a Robust PCB Design Workflow for Signal Integrity

Webinar PCB Design for Signal Integrity by Sierra Circuits

Abstract by Tim Wang Lee:

This webinar introduces a robust PCB design workflow that facilitates efficient signal integrity analysis and troubleshooting.
You will learn the mechanisms affecting signal integrity to give you practical tips for evaluating link designs and troubleshooting issues.

Watch our on-demand webinar where we will show you how to:

  • Head start on your signal integrity journey
  • New perspective on a robust design workflow that integrates troubleshooting in the design
  • Excellent refresher on the fundamental SI analyses and concepts

Manufacturing Defects Caused by Land Patterns

Webinar PCB Manufacturing Defects Caused by Land Patterns by Sierra Circuits

Abstract by Elizabeth Bustamante:

PCB footprints and land patterns are largely overlooked but a fundamental step in the design process.

Often, engineers do not realize that their manufacturing defects may be caused by poorly designed land patterns. Delving far beyond the basics, we’ll look at the more gnarly errors that trip up engineers and how to prevent costly prototype iterations and delays on your next project by bringing in more verification into your processes.

Watch the on-demand webinar during which I will answer:

  • What are footprints/land patterns in a PCB?
  • Footprint/land pattern types and dimensions
  • Manufacturing defects caused by footprints/land patterns
  • How to avoid footprint/land pattern defects in a PCB?
  • Quality footprint/land pattern layout guidelines
  • Tips for an ideal footprint/land pattern generation scheme

How Much Insertion Loss is Too Much

Webinar Insertion Loss by Sierra Circuits

Abstract by Eric Bogatin:

All high-speed serial links are sensitive to the losses in a system. How much loss is too much, and when your channel approaches this limit, what can you do in the design and material’s selection to reduce this loss?

Watch the on-demand webinar during which I will answer:

  • What exactly is insertion loss?
  • Why is it so bad?
  • How much is too much?
  • What is the root cause and how do we engineer a more acceptable insertion loss?