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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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IPC Subcommittee to Host Open Forum on Weak Microvia Interface during IPC APEX EXPO
December 10, 2018 | IPCEstimated reading time: Less than a minute
The IPC V-TSL-MVIA Weak Interface Microvia Failures Technology Solutions Subcommittee, formed this year, is working to identify the risks, causes, and mitigation of failures due to a weak interface between the plated copper at the bottom of a microvia and the underlying copper surface. The activity grew out of the development of IPC-WP-023, a white paper that cast a light on how a weak microvia interface is a hidden reliability threat.
The subcommittee will hold an open forum for industry to learn about its activities as well as its planned path forward. Attendees will be invited to share their own issues regarding weak microvia interfaces and will learn how to participate on the subcommittee.
IPC Weak Microvia Interface Open Forum
Wednesday, January 30, 2019
10:15 AM to 12:00 PM
San Diego Convention Center
Room 6
Order IPC WP-023, IPC Technology Solutions White Paper on Performance-Based Printed Board OEM Acceptance via Chain Continuity Reflow Test: The Hidden Reliability Threat – Weak Microvia Interface from the IPC bookstore.
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Brent Fischthal - Koh YoungSuggested Items
Nortech Systems Launches Power over Fiber Technology Platform for EMI-Sensitive Applications
04/08/2026 | Globe NewswireNortech Systems Incorporated, a leading provider of design and manufacturing solutions for complex electromedical devices and electromechanical systems, has announced the launch of its Power over Fiber technology platform.
Flexible Thinking: Designing Flex Circuits for Dynamic Reliability
04/09/2026 | Joe Fjelstad -- Column: Flexible ThinkingFlex circuits flex. No surprises there. However, they are also very commonly designed into products because they are thin and offer consistent thickness and dielectric properties, attributes highly prized by present-day product designers of personal electronics. This would include smartphones and, increasingly, wearable electronics for medical monitoring and even fashion.
Understanding Tolerances in Flexible Circuit Design
04/01/2026 | Chris Clark, Flexible Circuit TechnologiesThe challenge with cumulative tolerances is meeting the dimensional requirements for items dimensioned on a drawing or specification for a flexible or rigid-flex circuit. It is critical to understand the fabrication processes and how features are defined when creating your tolerance requirements.
Target Condition: An Exploration of Flooding PCB Layers
04/02/2026 | Kelly Dack -- Column: Target ConditionThe concept of flooding PCB layers with copper has been around for so long, you’d think we’d have it mastered. We haven’t. (Oh, and by “we,” I mean design engineers and the software tools we depend on.) Years ago, PCB artwork was created by hand using light tables, with tape applied to Mylar. Signals were slow, traces were relatively wide, and high-current paths were simply “beefed up” with wider copper. Signal integrity wasn’t yet a driving concern. Today, solid return paths are fundamental to robust design. We understand the importance of continuous reference planes for signal integrity and EMI control.
New, Greener Solutions for Etch: Novel Copper Extraction
03/30/2026 | Richard Nichols, GreenSource Engineering“Novel” is a typical marketing phrase that implies new and unique, but often “novel” actually means an established technology being applied to a new field or application. This, in turn, is often driven by newly relevant external motivation. GreenSource has been working on just such a solution: novel copper extraction, offering a better and greener alternative to traditional LLE control systems for cupric chloride etch.