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#signal-integrity

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When Code Meets the PCB: From "Deadlocks" to Physical Debugging

As a software engineer, you are probably highly skilled at troubleshooting these kinds of problems: High latency: Network jitter, slow database queries, or a microservice timing out. Packet loss: TCP

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Maggie‌ WangOct 9 · 6 min read

Via Stub Effects and Back Drilling in High-Speed PCBs: An SI Fundamental Every Hardware Engineer Should Know

In high-speed digital design, signal integrity problems often hide in the least obvious places—vias. As signal rates move from 10Gbps to 25Gbps, 56Gbps, and even 112Gbps, an ordinary through-hole via

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Maggie‌ WangSep 22 · 6 min read

PCB Impedance Control: From Stackup Design to Manufacturing Tolerance — An Often Overlooked Engineering Detail

If you've done high-speed PCB design, you've heard the term "impedance control." But do you really understand the full chain of impedance control? Many engineers assume that impedance control is simpl

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Maggie‌ WangSep 18 · 5 min read

The "Second Skill" for Hardware Engineers in 2026: Why Manufacturing Knowledge Is Becoming a Core Competency

If you're a hardware engineer, you've probably noticed that knowing how to draw schematics, do layout, and debug boards is no longer enough. The 2026 job market is sending a clear signal: hardware eng

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Maggie‌ WangSep 9 · 5 min read

The Next Frontier of EDA Tools: Autodesk's "Neural CAD" and the Future of PCB Design

If you've been following the EDA industry over the past few years, you've noticed design tools getting "smarter." But the changes in 2026 go far beyond that. In June 2026, Autodesk SVP of Research Mik

anypcba.hashnode.dev

Maggie‌ WangSep 1 · 5 min read

The 2026 PCB Design Paradigm Shift: Why the Old Rules No Longer Apply

If you've been designing PCBs for more than a few years, you've probably noticed something unsettling lately. Your tried-and-tested design rules are starting to fail. Boards that should work are comin

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Maggie‌ WangJun 15 · 7 min read

DDR5 Layout in Practice: 7 Critical Steps from Schematic to SI Sign‑Off

You spent two weeks placing and routing. The boards came back, assembled, and powered on. The system booted. Then you ran signal integrity tests. The eye diagram was closed. Timing margins were negati

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Maggie‌ WangMay 27 · 6 min read

PCB Impedance Control in Practice: From Theory to Testing – Ensuring Your High‑Speed Lines Meet Specs

High‑speed signals (USB, HDMI, DDR, PCIe) have strict impedance requirements, typically 50Ω ±10% or 90/100Ω ±10%. But many engineers simply write “impedance control” on the drawing without understandi

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FrankSep 11, 2025 · 5 min read

RF PCB — an engineer’s practical guide

As a Senior Electronics Engineer, I treat RF PCB design as an electromagnetic systems problem, not merely a routing exercise. Substrate selection, trace geometry, and grounding decisions determine loss, impedance, and unintended radiation, factors th...

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fidus SystemsSep 9, 2025 · 4 min read

Managing Signal & Power Integrity in Complex PCB Layouts

Modern electronic devices demand speed, efficiency, and reliability. From smartphones to advanced automotive systems, today’s products rely on printed circuit boards (PCBs) that can handle high-speed signals and stable power delivery. However, as des...

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When Code Meets the PCB: From "Deadlocks" to Physical Debugging

Via Stub Effects and Back Drilling in High-Speed PCBs: An SI Fundamental Every Hardware Engineer Should Know

PCB Impedance Control: From Stackup Design to Manufacturing Tolerance — An Often Overlooked Engineering Detail

The "Second Skill" for Hardware Engineers in 2026: Why Manufacturing Knowledge Is Becoming a Core Competency

The Next Frontier of EDA Tools: Autodesk's "Neural CAD" and the Future of PCB Design

The 2026 PCB Design Paradigm Shift: Why the Old Rules No Longer Apply

DDR5 Layout in Practice: 7 Critical Steps from Schematic to SI Sign‑Off

PCB Impedance Control in Practice: From Theory to Testing – Ensuring Your High‑Speed Lines Meet Specs

RF PCB — an engineer’s practical guide

Managing Signal & Power Integrity in Complex PCB Layouts