HDI PCB Specification

High density interconnect (HDI) PCBs represent one of the fastest-growing segments of the printed circuit board market. Because of its higher circuitry density, the HDI PCB design is able to incorporate finer lines and spaces, smaller vias and capture pads, and higher connection pad densities. A high density PCB features blind and buried vias and often contains microvias that are .006 in diameter or even less.

Key HDI PCB Benefits

The evolution of high density PCB technology has given engineers greater design freedom and flexibility than ever before. Designers now have the ability to place more components on both sides of the raw PCB if desired. In essence, an HDI PCB gives designers more space to work with, while allowing them to place smaller components even closer together. This ultimately results in faster signal transmission along with enhanced signal quality.

HDI PCB is widely used to reduce the weight and overall dimensions of products, as well as enhancing the electrical performance of the device. It's regularly found in mobile phones, touch-screen devices, laptop computers, digital cameras, 4G network communications, also prominently featured in medical devices as well as various electronic aircraft parts and components.

High Density PCBs of Impeccable Quality

Over the course of a decade in business, PCBCart has established a hard-earned reputation for manufacturing PCBs of the highest quality. Our custom PCB manufacturing capabilities enable you to get the finest quality HDI PCBs at competitive prices without min order quantity requirement. Our team run design for manufacture check on your custom PCB file and consult with you to ensure it is ready for manufacturing and that your boards will meet your performance requirements. We also have an on-site quality control department to verify the finished product meet your high quality standards.


We're capable of manufacturing HDI PCB up to 24 layers in various structures, check the following table for our available HDI PCB structures:

Type of
Micro vias
Prototype Available
1+N+1 Blind vias Yes Yes Yes 4 layers+
2+N+2 Blind/Buried
staggered vias
Yes Yes Yes 6 layers+
2+N+2 Blind/Buried
stacked vias
Yes Yes Yes 6 layers+
3+N+3 Blind/Buried
staggered vias
/ Yes Yes 8 layers+
3+N+3 Blind/Buried
stacked vias
/ / Yes 8 layers+

Check our HDI PCB capabilities by reviewing the table found below:

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)

Order HDI PCB Manufacturing Service Online Today

Our Online PCB Quote and Order System allows you to get HDI PCB production price within seconds. Click below button to enter our HDI PCB quote page, then fill in your circuti spec (it is very important that you select YES under Laser Drill option, and choose the right number under Type of stacked/staggered microvias section), corresponding HDI PCB price will show up in the right column. If your high density PCB project requires specifications which are not listed in the above table, feel free to reach us for solutions.

Get HDI PCB Fabrication Price Online

Helpful Resources
Something You Must Know about HDI
3 Keys to Designing a Successful HDI PCB
How to Evaluate an Automotive HDI PCB Manufacturer
PCB Design File Requirements For Efficient HDI PCB Fabrication
Step-by-step Instruction On Getting HDI PCB Price Within Seconds

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