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Suggested Items

Learning With Leo: UHDI—The Next Leap in PCB Manufacturing

11/05/2025 | Leo Lambert -- Column: Learning With Leo
High density interconnect (HDI) technology has been a cornerstone of miniaturized electronics since Hewlett-Packard introduced the first chip-scale implementation in 1982. Over time, HDI processes became central to organic flip-chip packaging in the semiconductor industry. Today, the convergence of IC substrates and system-level PCBs has accelerated the adoption of UHDI.

UHDI Fundamentals: UHDI Technology and Automated Inspection

11/03/2025 | Anaya Vardya, American Standard Circuits
Following up on the last article on integrating ultra high density interconnect (UHDI) PCB technologies and Quality 5.0, here we will do a deeper dive into the automated inspection component. UHDI applications demand extreme precision, with line/space dimensions below 25 µm and microvias below 30 µm. Automated inspection systems are essential to achieving the defect-free fabrication required at these scales, and legacy automated inspection systems are becoming obsolete and ineffective.

On the Line With… Ultra HDI Podcast—Episode 7: “Solder Mask: Beyond the Traces,” Now Available

10/31/2025 | I-Connect007
I-Connect007 is excited to announce the release of the seventh episode of its 12-part podcast series, On the Line With… American Standard Circuits: Ultra HDI. In this episode, “Solder Mask: Beyond the Traces,” host Nolan Johnson sits down with John Johnson, Director of Quality and Advanced Technology at American Standard Circuits, to explore the essential role that solder mask plays in the Ultra HDI (UHDI) manufacturing process.

Connect the Dots: Designing for the Reality of UHDI PCBs—Drilling

11/04/2025 | Matt Stevenson -- Column: Connect the Dots
Ultra high density interconnect (UHDI) PCBs are changing the game in designing for the reality of manufacturing. With both consumer and industrial electronic devices becoming more advanced, the demand for UHDI PCBs will grow. That means we’re all likely to be designing more UHDI boards. UHDI advanced miniaturization technology challenges designers with regard to both board thickness and footprint. Designers will face more variables in every aspect of design creation. This is certainly the case with drilling.

Episode 6 of Ultra HDI Podcast Series Explores Copper-filled Microvias in Advanced PCB Design and Fabrication

10/15/2025 | I-Connect007
I-Connect007 has released Episode 6 of its acclaimed On the Line with... American Standard Circuits: Ultra High Density Interconnect (UHDI) podcast series. In this episode, “Copper Filling of Vias,” host Nolan Johnson once again welcomes John Johnson, Director of Quality and Advanced Technology at American Standard Circuits, for a deep dive into the pros and cons of copper plating microvias—from both the fabricator’s and designer’s perspectives.
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