The 3+N+3 HDI PCB Stackup is a highly advanced, multi-layer circuit board architecture designed to meet the demands of ultra-compact electronic systems. Featuring three sequential build-up layers on both sides of a central core, this triple-layer HDI configuration allows for dense interconnection and superior electrical performance. It is the ideal architectural choice for engineers developing high-speed, miniaturized devices that require dense routing matrices without sacrificing signal integrity.
Key Features of 3+N+3 HDI PCB Architecture
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Advanced Microvia Technology: Utilizes laser-drilled microvias, stacked vias, and staggered vias to maximize routing space and layout efficiency.
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Fine Pitch Compatibility: Supports BGA components with pitches down to 0.4mm, reducing layer counts while maintaining optimal performance.
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Premium Substrates & Materials: Fabricated using high-Tg FR-4, halogen-free materials, and specialized low-loss dielectrics (e.g., Rogers, Panasonic Megtron) to control impedance.
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Controlled Impedance: Tight tolerance control for single-ended and differential pairs, matching exact high-speed digital design specifications.
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Surface Finishes: Available with ENIG, ENEPIG, or OSP finishes to guarantee excellent solderability and long-term shelf life.
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Compliance: Manufactured to strict IPC Class 2 or Class 3 standards, ensuring reliability in critical environments.
Applications
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Telecommunications: 5G network infrastructure equipment, high-speed routers, and advanced switching systems.
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Computing & Storage: High-density server motherboards, AI accelerators, and compact memory modules.
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Consumer Electronics: Next-generation smart devices, wearable tech, and premium mobile hardware.
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Industrial & Aerospace: Ruggedized embedded systems, flight control modules, and compact sensor arrays.
Why Choose PCBSYNC
PCBSYNC is a professional PCB fabrication, PCBA, and EMS manufacturer delivering precision-built electronics for aerospace, medical, automotive, industrial, and smart energy applications. We handle everything from rapid prototyping to mass production — including rigid, flexible, and rigid-flex PCBs, full turnkey assembly, component sourcing, AOI and X-ray inspection, and OEM/ODM support. Reliable boards. Consistent quality. From prototype to production — PCBSYNC.
Partner with an experienced manufacturer for your next high-density design. To discuss your project specifications or submit your Gerber files, please contact our engineering team to request a comprehensive quote.
