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Current IssueThe Hole Truth: Via Integrity in an HDI World
From the drilled hole to registration across multiple sequential lamination cycles, to the quality of your copper plating, via reliability in an HDI world is becoming an ever-greater challenge. This month we look at “The Hole Truth,” from creating the “perfect” via to how you can assure via quality and reliability, the first time, every time.
In Pursuit of Perfection: Defect Reduction
For bare PCB board fabrication, defect reduction is a critical aspect of a company's bottom line profitability. In this issue, we examine how imaging, etching, and plating processes can provide information and insight into reducing defects and increasing yields.
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Empowering the Future of Advanced Computing and Connectivity: DuPont Unveils Innovative Advanced Circuit Materials in Shanghai
March 24, 2025 | DuPontEstimated reading time: 2 minutes
DuPont will showcase how we are shaping the next generation of electronics at the International Electronic Circuits (Shanghai) Exhibition 2025. With a diverse portfolio of advanced circuit materials and solutions designed to push the limits of fine-line technology, signal integrity, and thermal management, DuPont will be exhibiting in Booth #8A31 at National Exhibition and Convention Center (NECC) from March 24-26.
"As artificial intelligence (AI), machine learning, and 5G technologies continue to advance, the demand for high-performance devices is propelling innovations in packaging substrates and high-end PCBs," said Yuan Yuan Zhou, Global Business Director, Advanced Circuit & Packaging, DuPont. "With our cutting-edge materials and integrated solutions, we are helping PCB manufacturers meet the increasing needs for miniaturization, integration, and performance, paving the way for the next generation of AI-driven substrates. Our advancement in interconnect materials plays a critical role in enabling AI infrastructure to optimize speed, efficiency, and reliability."
DuPont is leveraging decades of expertise in material science to address the evolving demands of the rapidly expanding IC substrate and high-end PCB market, fueled by the surge from AI servers and data centers, networking, autonomous vehicles, and 5G. The IC substrate offerings encompass a wide array of solutions, including dielectrics, metallization chemistries for electroless copper seed layer, redistribution layer, copper pillars, solder bumps, and dry film imaging photoresists. This comprehensive portfolio tackles critical challenges in performance, miniaturization, reliability, and cost efficiency.
At the show, DuPont experts will be available at the company's booth to share their in-depth knowledge on technological innovations and industry trends. Attendees can explore DuPont's comprehensive solutions for the PCB market, featuring the following product offerings:
DuPont™ Circuposit™ SAP8000 electroless copper is an innovative SAP metallization technology designed for AI server CPU or GPU chip applications. This ionic-based catalyst electroless copper process is optimized for advanced packaging. It meets the demands for low-roughness dielectrics as well as low dielectric constant (Dk) and low dissipation factor (Df) properties essential for fine-line and high-frequency designs.
DuPont™ Microfill™ SFP-II-M acid plating copper is a novel pattern plating solution specifically designed to optimize pattern distribution for large AI chips. It is engineered to deliver consistent pattern distribution across large unit sizes, making it ideal for high-performance computing applications.
DuPont™ Riston® DI1600 & DI1600M dry film photoresist is an advanced fine line direct imaging photoresist solution specifically designed for IC substrate applications. It boasts exceptional fine line adhesion and resolution, paired with high-yield performance.
DuPont™ Riston® DWB8100M dry film photoresist is a high-performance direct imaging solution tailored for fine copper pillar and thick copper mSAP applications. It offers excellent fine line and via resolution, with strong bottom adhesion to minimize underplating risks. It ensures stable yield performance while providing a straight dry film and copper trace profile with low trace voids, making it optimal for advanced IC substrate applications.
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The Evolution of Picosecond Laser Drilling
06/19/2025 | Marcy LaRont, PCB007 MagazineIs it hard to imagine a single laser pulse reduced not only from nanoseconds to picoseconds in its pulse duration, but even to femtoseconds? Well, buckle up because it seems we are there. In this interview, Dr. Stefan Rung, technical director of laser machines at Schmoll Maschinen GmbH, traces the technology trajectory of the laser drill from the CO2 laser to cutting-edge picosecond and hybrid laser drilling systems, highlighting the benefits and limitations of each method, and demonstrating how laser innovations are shaping the future of PCB fabrication.
Day 2: More Cutting-edge Insights at the EIPC Summer Conference
06/18/2025 | Pete Starkey, I-Connect007The European Institute for the PCB Community (EIPC) summer conference took place this year in Edinburgh, Scotland, June 3-4. This is the third of three articles on the conference. The other two cover Day 1’s sessions and the opening keynote speech. Below is a recap of the second day’s sessions.
Day 1: Cutting Edge Insights at the EIPC Summer Conference
06/17/2025 | Pete Starkey, I-Connect007The European Institute for the PCB Community (EIPC) Summer Conference took place this year in Edinburgh, Scotland, June 3-4. This is the second of three articles on the conference. The other two cover the keynote speeches and Day 2 of the technical conference. Below is a recap of the first day’s sessions.
Preventing Surface Prep Defects and Ensuring Reliability
06/10/2025 | Marcy LaRont, PCB007 MagazineIn printed circuit board (PCB) fabrication, surface preparation is a critical process that ensures strong adhesion, reliable plating, and long-term product performance. Without proper surface treatment, manufacturers may encounter defects such as delamination, poor solder mask adhesion, and plating failures. This article examines key surface preparation techniques, common defects resulting from improper processes, and real-world case studies that illustrate best practices.
RF PCB Design Tips and Tricks
05/08/2025 | Cherie Litson, EPTAC MIT CID/CID+There are many great books, videos, and information online about designing PCBs for RF circuits. A few of my favorite RF sources are Hans Rosenberg, Stephen Chavez, and Rick Hartley, but there are many more. These PCB design engineers have a very good perspective on what it takes to take an RF design from schematic concept to PCB layout.