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Beyond Design: Ground Bounce
Ground bounce, or more precisely, supply bounce, is the voltage produced between two points in the power delivery path. It is fundamentally related to the total inductance of the current path and shared return paths and the instantaneous surge current delivered by the power supply. Once again, we find that inductance is the covert enemy of the high-speed PCB designer. It is the primary cause of simultaneous switching noise and electromagnetic radiation. As edge rates continue to increase, the impact of intrinsic electrical characteristics become more pronounced. In this month’s column, Barry Olney looks at supply bounce and how to minimise the impact on high-speed digital circuits.


Barry Katz Discusses SiSoft's DesignCon Papers and Plans for 2018
SiSoft President and CTO Barry Katz sat down with Editor Andy Shaughnessy to share his thoughts on the company's papers presented during DesignCon 2018, as well as SiSoft's latest products and plans for 2018.

Become a PCB Certified Designer! The 2018 Schedule is here. More Classes, More Dates, More Times. Powered Only by EPTAC. Learn more now.


Frontline's InStack Viewer Helps Designers and Fabricators
Ben Quarles, software solultions business manager at Frontline, and Editor Andy Shaughnessy discuss the new InStack Viewer, which allows PCB designers and fabricators to investigate impedances, material properties, and other attributes of the correct stackup.


EIPC’s Winter Conference in Lyon, France: Day 2 Review
The first day of the conference had started and ended in the dark—a long and technically intense day! After a convivial conference dinner and a good night’s sleep we were back on the bus, this time in daylight at the slightly later time of 8:00 a.m., for the journey from downtown Lyon back to Alstom’s conference facility in Villeurbanne, and it wasn’t raining. In fact, there was even some sunshine later in the day!


Design News & Additional Information

Cadence Named One of the 2018 Fortune 100 Best Companies to Work For
Cadence Design Systems, Inc. has announced that Fortune and global research and consulting firm Great Place to Work have named Cadence #38 on the 2018 Fortune 100 Best Companies to Work For list.

Power Integrity by Example eBook Available for Download
Released in November, The Printed Circuit Designer’s Guide to… Power Integrity by Example micro eBook has been downloaded by hundreds of engineers and other readers interested in PCB design.

Altium Delivers Record Revenue Growth of 30% in First Half of Fiscal 2018
Continuing its growing momentum, Altium achieved record revenue growth of 30% for the first half at US$63.2 million and expanded profit margins to record levels with EBITDA over 30% and a 51% increase in net profit after tax to US$14.9 million.

Rogers to Showcase Advanced Materials at IPC APEX EXPO 2018
Rogers Corporation’s Advanced Connectivity Solutions team will be presenting the latest developments in PCB materials for emerging high-frequency applications at the upcoming IPC APEX EXPO 2018, February 27 – March 1, 2018 at the San Diego Convention Center.

For all the latest Printed Circuit Board Design news and information, go to PCBDesign007 right now!

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