The 4-Layer HDI PCB from PCBSYNC offers high-density interconnect capability for modern, space-constrained electronic designs. As components shrink and pin counts rise, traditional multi-layer boards often fall short. This microvia build-up board bridges that gap by using ultra-fine line routing, stacked or staggered microvias, and thinner core materials to drastically reduce layout footprint while maintaining robust electrical performance.
Key Features of the 4-Layer HDI PCB
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Microvia Build-Up Structure: Laser-drilled blind and buried microvias supporting tight pitch components down to 0.4mm.
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Advanced Materials: Available in high-Tg FR-4, halogen-free materials, and Rogers options for high-frequency stability.
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Precision Dimensions: Minimum line width/spacing down to 3mil/3mil ($0.075\text{ mm}$) for dense trace layouts.
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Controlled Impedance: Tight tolerance impedance matching ($\pm 10\%$) for high-speed differential pairs and signal integrity.
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Surface Finish Options: ENIG, ENEPIG, OSP, or Immersion Silver for flat component landing pads and superior solderability.
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Compliance & Quality: Manufactured to IPC-A-600 Class 2 or Class 3 standards, RoHS and REACH compliant.
Applications
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Consumer Electronics: Smartwatches, smartphones, IoT modules, and high-end wearables.
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Medical Devices: Handheld diagnostic tools, implantable telemetry equipment, and compact monitoring sensors.
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Automotive Systems: Advanced Driver Assistance Systems (ADAS), infotainment modules, and compact radar sensors.
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Computing & Telecom: High-speed routers, edge computing modules, and RF transceiver cards.
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.
Ready to transition your complex high-density layout from design to physical assembly? Contact the engineering team at PCBSYNC today to discuss your project specifications or submit your Gerber files directly to request a quote.