Glass-Weave Skew Part II: mitigation methods
Understanding and controlling sources of differential-pair skew is critical to signal integrity and reduces the potential for nightmarish field failures.
Differing micro-environments can cause slight signal delays within a differential pair, leading to apparently random field failures in production. This is known as Glass-Weave Skew, a phenomena that's easier to prevent that predict.
A serial link’s differential-skew budget shrinks as bit rates increase. For example, a 1 Gbps (500 MHz) signal would have roughly 250 ps of skew tolerance. That’s a wide window, and why most engineers didn’t need to worry about GWS 20+ years ago.
In this webinar we explore eleven possible solutions to help prevent glass-weave skew, with an eye toward manufacturing costs and future-proofing your designs.
The webinar covers
- Deterministic methods for addressing GWS
- Probabilistic GWS mitigation methods
- Glass styles and their relative suitability for mitigating GWS
발표자 소개
Bill Hargin
CEO
Bill Hargin is the chief everything officer at Z-zero, developer of the PCB stackup design and material selection software, Z-planner Enterprise. Bill is an industry pioneer, with more than 25 years working in PCB signal integrity and manufacturing, while authoring dozens of articles on signal integrity, stackup design, and material selection. Hargin is also the author of the iConnect007 publication Stackups, the Design within the Design, a regular columnist for Printed Circuit Design and Fabrication magazine, and a contributing author for the Printed Circuits Handbook.
Bill is a regular speaker and panelist at both DesignCon and PCB West, and more than 10,000 engineers and PCB designers worldwide have taken his workshop on high-speed PCB design. Mr. Hargin served as director of marketing for Mentor Graphics’ HyperLynx SI software and as the Director of North American Marketing for Nan Ya Plastic’s PCB laminate division in Taiwan before founding Z-zero.
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