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UHDI Fundamentals: UHDI Technology and Industry 4.0

09/03/2025 | Anaya Vardya, American Standard Circuits
Ultra high density interconnect (UHDI) technology is rapidly transforming how smart systems are designed and deployed in the context of Industry 4.0. With its capacity to support highly miniaturized, high-performance, and densely packed electronics, UHDI is a critical enabler of the smart, connected, and automated industrial future. Here, I’ll explore the synergy between UHDI and Industry 4.0 technologies, highlighting applications, benefits, and future directions.

Connect the Dots: Sequential Lamination in HDI PCB Manufacturing

07/31/2025 | Matt Stevenson -- Column: Connect the Dots
As HDI technology becomes mainstream in high-speed and miniaturized electronics, understanding the PCB manufacturing process can help PCB design engineers create successful, cost-effective designs using advanced technologies. Designs that incorporate blind and buried vias, boards with space constraints, sensitive signal integrity requirements, or internal heat dissipation concerns are often candidates for HDI technology and usually require sequential lamination to satisfy the requirements.

Ventec International Group Announce Launch of VT-47LT IPC4101 /126 Prepreg for HDI

03/12/2025 | Ventec International Group
Ventec International Group announce launch of VT-47LT IPC4101 / 126 Prepreg. Are Microvia Failures Plaguing Your HDI Any Layer Designs? High-density interconnect (HDI) designs are pushing the envelope - higher layer count HDI relies on complex microvia designs: skip vias, staggered microvias, and stacked microvias in sequential laminations.

Partial HDI: A Delicate Balance

10/30/2024 | I-Connect007 Editorial Team
Partial HDI can be the perfect solution for designers faced with escape routing from tight-pitch BGAs. But there are a variety of material, signal integrity, and DFM trade-offs to understand before you get fully into partial HDI. We asked Stephen Chavez to explain the fundamentals, as well as the details, of this promising process. Are you using partial HDI?

Financial Risks of Ignoring Copper Grain

11/01/2023 | Alex Stepinski, Stepinski Group
The topic of intrinsic copper structure has been largely neglected in discussions regarding the PCB fabrication quality control process. At face value, this seems especially strange considering that copper has been the primary conductor in all wiring boards and substrates since they were first invented. IPC and other standards almost exclusively address copper thickness with some mild attention being paid to surface structure for signal loss-mitigation/coarse properties. 
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