HDI PCB

More circuitry. Less space. Up to 3rd order HDI with laser-drilled microvias for the most advanced designs.

High Density Interconnect (HDI) PCBs represent the cutting edge of printed circuit board technology — enabling designers to pack more functionality into smaller and lighter boards than was previously possible with conventional PCB manufacturing methods.

HDI achieves this through the use of laser-drilled microvias (as small as 0.1mm), blind and buried vias, fine line traces and spaces (as tight as 2.5/2.5 mil), and sequential lamination build-up processes. These technologies dramatically increase routing density, reduce layer count requirements, and improve signal integrity at high frequencies.

We support up to 3rd order HDI — the most complex commercial HDI structure — with three sequential build-up layers on each side of the board core. Any-layer HDI, where every layer can be interconnected via stacked microvias, is also available for the highest density requirements such as advanced mobile processors and high-performance computing modules.

HDI is not just about miniaturisation — it also delivers superior electrical performance. Shorter signal paths, reduced parasitic inductance and capacitance, and better controlled impedance make HDI the preferred choice for designs operating at gigahertz frequencies where signal integrity is paramount.

HDI PCB GPU high-density interconnect illustration

Key Advantages

Key Advantages

Maximum Component Density

Microvias and fine-line technology allow significantly more components and routing channels per unit area — enabling smaller, lighter end products without sacrificing functionality.

Improved Signal Integrity

Shorter interconnect paths and reduced parasitic effects improve signal quality at high frequencies. Essential for designs above 1 GHz where trace length directly impacts performance.

Reduced Layer Count

HDI routing efficiency often allows the same design to be achieved with fewer layers compared to conventional PCBs — potentially reducing cost and board thickness.

Via-in-Pad Technology

Microvias placed directly under BGA and fine-pitch component pads free up routing space and enable escape routing for the finest pitch components available today.

Support for Advanced Packages

HDI enables reliable assembly of the smallest IC packages — including 0.3mm pitch BGA, CSP, flip-chip, and embedded die — that conventional PCBs cannot accommodate.

Up to 3rd Order HDI

Three sequential build-up layers per side support the most complex designs. Any-layer HDI available for maximum interconnect freedom between all layers.

Applications

Industries & Applications

Industries

  • Consumer Electronics & Mobile
  • Wearable Technology
  • Medical Devices & Implants
  • Aerospace & Defense
  • High-Performance Computing
  • Advanced Automotive (ADAS, EV)
  • Telecommunications (5G)
  • Industrial IoT

Typical Products

Smartphones Tablets Smartwatches AR/VR Headsets Hearing Aids Pacemakers Avionics Modules GPU Boards 5G Base Stations ADAS Controllers Satellite Components Drone Flight Controllers Industrial Cameras High-Speed Networking Equipment

Technical Data

Specifications

ParameterCapability
HDI Order1st, 2nd, 3rd order; Any-layer HDI available
Min Laser Drill0.1mm
Min Microvia Pad0.25mm
Min Trace / Space2.5 / 2.5 mil
Via TypesBlind, Buried, Stacked, Staggered, Via-in-pad
Layers4 – 30+ layers
Board Thickness0.4mm – 3.2mm
Registration±0.05mm
Surface FinishENIG, ENEPIG, Immersion Silver
IPC StandardClass 2 & Class 3
Controlled Impedance±5% tolerance
Lead TimePrototype: 7–10 days; Production: 15–25 days
20,000 m²/MONTH PCB PRODUCTION CAPACITY
200+ DAILY PCB PROTOTYPE DELIVERY
50+ DAILY PCBA PROTOTYPE DELIVERY