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Beyond the Rulebook
What happens when the rule book is no longer useful, or worse, was never written in the first place? In today’s fast-moving electronics landscape, we’re increasingly asked to design and build what has no precedent, no proven path, and no tidy checklist to follow. This is where “Design for Invention” begins.
March Madness
From the growing role of AI in design tools to the challenge of managing cumulative tolerances, these articles in this issue examine the technical details, design choices, and manufacturing considerations that determine whether a board works as intended.
Looking Forward to APEX EXPO 2026
I-Connect007 Magazine previews APEX EXPO 2026, covering everything from the show floor to the technical conference. For PCB designers, we move past the dreaded auto-router and spotlight AI design tools that actually matter.
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Mentor White Paper: Characteristic vs. Instantaneous Impedance
December 29, 2017 | MentorEstimated reading time: 1 minute
Successful signal integrity analysis depends on a fundamental concept: impedance. Without a thorough understanding of the impedance values that a signal encounters along the way, designers cannot maintain good signal quality from source to receiver.
This paper defines the difference between characteristic and instantaneous impedance and explores the essential principles of impedance and design-controlled impedance.
To download this Mentor white paper, click here.
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Julia McCaffrey - NCAB GroupSuggested Items
Elementary, Mr. Watson: The Design Matrix: Revealing the Hidden Truths of Reality
05/12/2026 | John Watson -- Column: Elementary, Mr. Watson“It seems you've been living two lives.” In one life, you're the respectable and responsible PCB design professional who follows the rules, works, pays taxes, meets deadlines, runs the checks, and even helps the landlady take out her garbage. In the other life, you’re the PCB designer who senses that something is wrong, searches for the deeper meaning behind their work, and can no longer fully accept the design world exactly as it has been presented. Welcome to the Design Matrix.
Skoltech Team Develops Modulator for Compact Photonic Integrated Circuits
04/28/2026 | SkoltechResearchers at Skoltech have developed an ultra-compact electro-optic modulator based on silicon photonics and plasmonics that enables high-efficiency optical signal control within a small device footprint.
Kitron to Expand Swedish Manufacturing Footprint
04/24/2026 | KitronKitron plans to build a larger facility for its subsidiary, Kitron Eltech (formerly DeltaNordic), in Örnsköldsvik, Sweden.
Below the Surface: Looking Ahead to Where Integration Actually Happens
04/20/2026 | Chandra Gupta -- Column: Below the SurfaceProgress in RF rarely arrives and suddenly rewrites the rules. What actually moves performance forward almost always happens in the seams, the interfaces, the choices that determine whether individual parts are allowed to work together, or forced to fight one another. So, when we look ahead in RF systems—from DC through millimeter-wave—the most important conversations aren’t about isolated materials or heroic devices. They’re about integration, and more specifically, about how ceramic-based RF packages and module architectures shape system-level behavior long before the signal ever reaches free space.
Keysight Collaborates with 3dB Labs to Enable Interoperable Signal Monitoring and Analysis
03/12/2026 | BUSINESS WIREKeysight Technologies, Inc. announced the integration of Keysight spectrum analyzers and FieldFox handheld analyzers with 3dB Labs’ Sceptre, expanding interoperability between signal monitoring hardware and analysis software.