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Overconstrain? Underconstrain? Selecting Materials for High-speed Designs

06/06/2024 | Andy Shaughnessy, Design007 Magazine
When selecting materials for a high-speed design, you need to be very familiar with the materials’ electrical characteristics, as well as the requirements of the PCB you’re designing. There are myriad details that need to be considered during the material selection process, and missing one iota can lead to your job being put on hold. We asked Stephen Chavez, principal technical product marketing manager at Siemens, to share his thoughts on material selection for high-speed designs. Steph discusses material constraints, stackups, and the cut-off point when a “traditional” laminate will (and won’t) work for a high-speed board.

Beyond Design: Dielectric Material Selection Guide

05/23/2024 | Barry Olney -- Column: Beyond Design
Materials used for the fabrication of multilayer PCBs absorb high frequencies and reduce edge rates. That loss in the transmission line is a major cause of signal degradation. However, not all of us are designing cutting-edge boards and sometimes we tend to over-specify requirements that can lead to inflated production costs. In this month’s column, I will look at the types of materials commonly used for PCB design and how to select an adequate material to minimize costs.

Material Insight: The Dielectric Constant of PCB Materials

05/17/2024 | Dr. Preeya Kuray -- Column: Material Insight
In the world of PCB design, miniaturization can be achieved by using low dielectric constant (Dk) materials. Low Dk materials can allow for a reduction in thickness while maintaining a given trace width, leading to lower transmission loss and higher density circuitry.

Septentrio Expands UAV Ecosystem for Reliable GNSS Positioning

04/22/2024 | Septentrio
Septentrio, a leader in high-precision GNSS* positioning solutions, is closely working with several major drone solutions providers including 3DR, Holybro, ARK Electronics and Systork, which is resulting in various new products that allow easier prototyping or integration of the mosaic™ GNSS receiver into UAVs.

The Pulse: Drilling Down on Documentation

04/18/2024 | Martyn Gaudion -- Column: The Pulse
How did a product aimed at signal integrity end up being more about documentation? For a little backstory, the Polar team has an unspoken “no business speak” rule at certain times. So, why is this column titled “Drilling Down?” I find it fascinating when a company sets off in one direction, but customers steer it in another. That’s what has happened here as customers took a product down a fork in the road we couldn’t predict. Your destination isn’t always where you initially set off to go, and that’s how we got to our subject of drills and drill documentation.
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