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FuLin Circuits Co., Limited

HDI PCB

What are HDI PCBs?

High Density Interconnect (HDI) printed circuit boards (PCBs) are defined as PCBs with higher wiring density per unit area than conventional PCBs. Nowadays, HDI PCBs are increasingly being used, and have made a big difference to technological advancement in electronics industry.

What are the benefits of HDI PCB?

HDI PCBs have many benefits for users over traditionally manufactured circuit boards. There are some benefits:
1. Excellent Versatility: High density interconnect circuit boards are typically used in applications in which weight, space, reliability, and performance are major concerns. Thus, HDI circuit boards are used in a wide range of applications that are related to aeronautics, consumer products, electronics, and computers.
2. Compact Designs: With HDI boards, you can secure more components on both sides of the raw PCB, allowing you to get more functionality out of a smaller space and expanding the overall capabilities of the equipment. HDI technology enables you to add functionality while reducing the size and weight of your products.
3. Improved Reliability: The smaller aspects ratios and the high-quality construction of microvias can increase the reliability of your board and your product. The improved performance and reliability HDI PCBs provide will lead to reduced costs and more satisfied customers.
4. Higher Signal Transmission: A shorter distance between components and a higher number of transistors can mean improved electrical performance. These features allow for lower power consumption, which improves signal integrity. Smaller sizes correlate to quicker signal transmissions and more significant reductions in overall signal losses and crossing delays.
5. Increased Cost-Effectiveness: With proper planning and manufacturing, HDI boards can be more cost-effective than other options because they require fewer raw materials due to their smaller size and the low number of layers they need. You’re able to get more functionality and value out of a smaller area and less material.

What are HDI PCBs Used?

The benefits explained above make these PCBs suitable for use in a number of applications, which include Medical Equipment, Industrial Control, Aerospace, consumer products and Military.

To know more about HDI PCBs, please contact us via Sales@flcircuits.com

 

                                                    PCB Capability

Item

Mass   Production

Sample

Max.   Layers

16layers

30layers

Max. Board   Size

21"x24"

21"x26”

Products   Type

2-layer PCB,   multilayer PCB, Aluminum PCB, HDI PCB, Impedance PCB, HDI board  PCB,BGA PCB, etc.

2-layer PCB,   multilayer PCB, Aluminum PCB, HDI PCB, Impedance PCB, HDI board  PCB,BGA PCB, etc.

Material

FR4,CEM1,High   Tg, Al base material, Copper base, etc.

Rogers,   Nelco, etc.

Max. Board   Thickness

0.4mm~6.0mm

<0.4mm   and >7.00mm

Min. Core   Thickness

0.10mm

0.10mm

Min. Track   Width/Space

4mil/4mil

3mil/3mil

Max.   Copper Thickness

Inner   Layer: 6Oz

Inner   Layer: 8Oz

 

Outer   Layer: 8Oz

Outer   Layer: 10 Oz

Min. Drill   Size

0.2mm

0.15mm

Min. Laser   Drill Size

0.1mm

0.076mm

PTH   Diameter Tolerance

±3mil

±2mil

Aspect   Ratio

8:1

12:1

PTH Wall   Thickness

18um-25um

16um-35um

Min solder   mask bridge

0.13mm

0.10mm

Min solder   mask window

0.10mm

0.08mm

V-cutting   Tolerance

±0.13mm

±0.10mm

Outline   Dimension

±0.13mm

±0.10mm

Warp and   Twist

≤0.7%

≤0.5%

Blinded   and Buried Via Holes

Yes

Yes

Controlled   Impedance

±10%

±7%

HDI Board

1+N+1

2+N+2

Surface   Treatment

HASL

HASL

Surface   Treatment

HASL Lead   Free

HASL Lead   Free

Immersion   Gold

Immersion   Gold

Immersion   Tin

Immersion   Tin

Immersion   Silver

Immersion   Silver

Flash Gold

Flash Gold

OSP

OSP

Gold   Finger

Gold   Finger

Selective

Selective

 

 

 

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