HDI PCB Fabrication

PCBBOX is offering HDI PCBs to global customers with excellent quality and cost efficiency, which are widely applied in complex projects and compact devices. HDI (High-Density Interconnect) PCBs are a type of printed circuit board that features a higher density of wiring connections compared to traditional PCBs with advantages:
1. Miniaturization: HDI PCBs enable the design of smaller and lighter electronic devices.
2. Higher Performance: The high-density interconnections improve signal integrity and reduce signal loss.
3. Increased Functionality: More components can be placed on the board, allowing for more complex and powerful devices.

HDI PCB
Feature Capability
Quality Grade Standard IPC 2
Number of Layers 4 – 24layers
Order Quantity 1pc – 10000+pcs
Build Time 2days – 5weeks
Material FR4 standard Tg 140°C,FR4 High Tg 170°C, FR4 and Rogers combined lamination
Board Size Min 6*6mm | Max 457*610mm
Board Thickness 0.4mm – 3.0mm
Copper Weight (Finished) 0.5oz – 2.0oz
Min Tracing/Spacing 2.5mil/2.5mil
Solder Mask Sides As per the file
Solder Mask Color Green, White, Blue, Black, Red, Yellow
Silkscreen Sides As per the file
Silkscreen Color White, Black, Yellow
Surface Finish HASL – Hot Air Solder Leveling
Lead Free HASL – RoHS
ENIG – Electroless Nickle/Immersion Gold – RoHS
Immersion Silver – RoHS
Immersion Tin – RoHS
OSP – Organic Solderability Preservatives – RoHS
Min Annular Ring 4mil, 3mil – laser drill
Min Drilling Hole Diameter 6mil, 4mil – laser drill
Max Exponents of Blind/Buried Vias stacked vias for 3 layers interconnected, staggered vias for 4 layers interconnected
Other Techniques Flex-rigid combination
Via In Pad
Buried Capacitor (only for Prototype PCB total area ≤1m²)

Printed circuit board technology has been evolving to meet the demands of smaller and faster products.HDI boards are more compact and feature smaller vias, pads, copper traces, and spaces. As a result, HDI allows for denser routing, making the PCB lighter, more compact, and with fewer layers. Runrays are right here to serve you with outstanding HDI PCB manufacturing servcies.