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HDI Technology

HDI PCB Manufacturing

High Density Interconnect PCBs with micro-vias, any-layer interconnects, and sequential lamination. Enabling miniaturization for smartphones, tablets, and wearable electronics.

1:1
Fine Pitch BGA
50μm
Micro-Via Pitch
Any-Layer
HDI Type
100μm
Min Line/Space
Capabilities

High Density Interconnect (HDI) PCB

HDI technology uses micro-vias and higher wiring density to reduce board size and improve electrical performance. Essential for modern compact electronics.

Standard Via

Mechanical drill through all layers. Larger pad sizes, higher parasitic inductance.

≥ 0.25mm drill

Micro-Via (Via-in-Pad)

Laser-drilled small vias, often in-pad. Reduced inductance and improved routing density.

0.05-0.15mm LID

Any-Layer HDI

All layers interconnect with micro-vias. Maximum density, used in smartphones and IC substrates.

1+1+1, 2+2+2 Stack
📱

Smartphone & Tablet PCBs

Any-layer HDI with 8-12 layers of micro-vias. BGA fan-out, package-on-package (PoP), and ultra-thin profiles down to 0.4mm total thickness.

Wearable Electronics

Ultra-thin flexible-rigid HDI combinations for smartwatches, AR glasses, and fitness trackers. Stacked micro-via technology for maximum density.

💊

Medical Devices

High-reliability HDI for implantable and portable medical devices. Biocompatible materials, strict IPC Class 3 standards, and mini-BGA packaging.

🚗

Automotive ADAS

HDI PCBs for advanced driver assistance systems. Thermal management, vibration resistance, and miniaturized sensor modules with high-speed signals.

HDI Process

HDI Manufacturing Process

1

Laser Drill

Micro-via ablation

2

Desmear

Remove debris

3

Plating

Via copper fill

4

Lamination

Sequential build-up

5

Test

Electrical test

Specifications

HDI PCB Parameters

🔬

Min Micro-Via

0.05mm (LID)

📍

Min Line/Space

50μm / 50μm (2mil)

📚

Layers

4-16 layers

⚙️

Via Stack

1-3+ stacked micro-vias

📏

Thickness

0.4mm - 2.0mm

🎯

Structure

1+N+1, 2+N+2, Any-layer

🛡️

Reliability

IPC Class 2 & 3

💯

Yield

99.5% pass rate

Need HDI PCBs?

Upload your design files and stack-up requirements. Get a detailed HDI manufacturing quote.

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