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JANUARY 2020 I DESIGN007 MAGAZINE 97 5 Lightning Speed Laminates: Test Vehicles for Materials Evaluation E There are many different types of PCB designs and constructions that can be used as a test vehicle to evaluate electrical proper- ties. John Coonrod explains how a proper test vehicle to compare different circuit materials would be a design and construction that takes into con- sideration the different material properties and have the least amount of PCB fabrication vari- ables that can impact the results. 6 Columnist Istvan Novak Nominated for Engineer of the Year E Design007 columnist Istvan Novak, a principal signal and power integrity engi- neer with Samtec, has been nominated for the Design- Con Engineer of the Year Award. 7 Mentor Paper: Concepts of Signal Integrity—Impedance E Successful signal integrity analysis depends on a fundamental concept: impedance. Without a thorough understanding of the impedance val- ues that a signal encounters along the way, de- signers cannot maintain good signal quality from source to receiver. This Mentor paper de- fines the difference between characteristic and instantaneous impedance and explores the es- sential principles of impedance and design- controlled impedance. 8 DesignCon Celebrates 25 th Anniversary With 2020 Keynote Lineup E DesignCon 2020—the na- tion's largest event for chip, b o a r d , a n d s y s t e m s d e - sign engineers—announced three keynote speakers that will headline the conference and expo set to take place January 28–30 at the Santa Clara Convention Center. 9 The Digital Layout: Fall 2019 Recap E As the second half of the year is quickly passing by, the IPC Designers Council has seen lots of continued activities within our industry regard- ing PCB design. PCB West was held in mid-September in Santa Clara, California, and as usual, the show exceeded expectations. Stephen Chavez provides a brief breakdown of fall activities within local chapters. J Zuken Unveils High-speed Features for Internet-connected PCB Design E eCADSTAR Advanced HS extends eCAD- STAR's connected 3D PCB design capabil- ities with powerful high-speed routing tools, such as length and delay-based impedance and skew control and comprehensive constraint management capa- bilities. for the latest circuit design news and information. focuses on the rapidly growing flexible and rigid-flex circuit market. John Coonrod Istvan Novak Stephen Chavez

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