Your Reliable HDI PCB Manufacturer in China

PCBMay is a professional high density interconnect (HDI) PCB manufacturer in China with over 12 years of experience, we could offer many different types of HDI PCBs for you.

  • Over 500 workers in the workshop
  • Follow up your local working time and quote in time
  • 7/24 sales and engineering tech support for your order
  • 24h quick-turn service for your prototype of HDI PCB
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PCBMay: Your Leading HDI PCB Supplier in China

As for your best partner for HDI PCB, we offer you a better solution for your HDI PCB design. Our CAM engineering department could provide some good suggestions when your project has some design problem so that it will save you some cost.

We offer different types of HDI PCBs such as 1+n+1, 2+n+2, 3+n+3, and any layer HDI PCB. PCBMay also offers a wide range of raw materials for your choice, including Shengyi, KB, NanYa, ITEQ, FR408, Rogers, Taconic, Arlon, and Nelco laminates.

We assure you to meet every detailed requirement of the Gerber file, if there is any design issue, we will inform you immediately via email prior to starting the manufacturing.

HDI PCB assembly is one of our areas of expertise. This information is provided to you so that you can learn more about our product offerings.

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HDI PCB Series

1 Step HDI PCB

The 1 step HDI PCB contains a single build-up of high-density interconnected layers, so it’s the most common form of HDI PCB. When constructing this PCB, it requires one sequential lamination on each side of the core. One build-up layer with a rigid core allows through vias from surface to emerge as a layer. Micro vias are used to build up the layer.

2 Step HDI PCB

The 2 step HDI PCB has two HDI layers and allows micro vias to be staggered or stacked across layers. Complex designs usually incorporate copper-filled stacked micr ovia structures. One build-up layer with a rigid core allows through vias buried in the core and from surface to surface. This allows for variable depth micro vias or stacked micro vias.

3 Step HDI PCB

The 3 step HDI PCB is that two or more build-up layers with a rigid core allow through vias buried in the core and from surface to surface. Stacked micro vias are used. For many PCB manufacturers, 1 step and 2 step HDI boards are easy and form the bulk of their HDI manufacturing business. 3 step HDI will also cost more.

4 Step HDI PCB

The 4 step HDI PCB designs often require laser micro vias created with laser drills. These drills generate a laser at up to 20 microns in diameter, which can effortlessly cut through both metal and glass, creating very tiny but clean holes. You can get even smaller holes by using alternative materials.

5 Step HDI PCB

This is a 12 layer with 5step high density interconnect(HDI) PCB, it needs better Laser Direct Imaging (LDI) technology, LDI is the go-to for fine lines and minute spacing because it can verify even the most demanding processes, continually expanding our capabilities and allowing for smaller form factors.

6 Step HDI PCB

This is a 14 layer with 6step high density interconnect(HDI) board, Conventional core board laminating times are 3 times, this product needs to be laminated 6 times which is very complicated. The applications of this kind of HDI PCBs are automotive, aerospace, mobile communications, and medical devices, etc.

HDI PCB by Types (5)

  • Microvia HDI PCB

    We can fit a lot of capability into a small space with our Microvia HDI PCB. Microvias allow traces to reach the interior layers of a PCB, allowing for layer-to-layer routing.

  • Multilayer HDI PCB

    We offer a very adaptable product with our Multilayer HDI PCB, which ranges from 10 to 32 layers. We guarantee that any layer of this PCB will experience reliable thermal cycling.


    The diameter of vias on the VIPPO HDI PCB (via in pad plated over PCB) are certainly not higher than 0.5mm. This is to ensure that the gadget and the pad have strong connections.


    This board allows you to mount BGAs with a large pin count as well as those that require unique routing techniques. Ball Grid Array ICs are maximized with BGA HDI PCB products.

  • Laser Cut HDI PCB

    Laser Cut HDI PCB facilitates rapid creation of multilayer PCBs with smaller vias. These panelized boards also promise less EMI for thick PCBs.  Reduces production costs.

HDI PCB by Shape & Size (5)

  • Rigid-Flex HDI PCB

    We ensure that no electric currents are lost due to contamination when we build Rigid-flex HDI PCB. Our Flexible PCBs can be used in a variety of products with slim profiles. Rigid-flexPCBs are multipurpose.

  • Large HDI PCB

    Large HDI PCBs, which contain more than 8 layers, are commonly made by us. Plated Through Hole Technology can be used to create large PCBs. SMD, on the other hand, is also acceptable.

  • Small HDI PCB

    We use V-Scoring PCB on a variety of board types, including Small HDI PCB. The PCB type’s best feature is its low environmental impact. To ensure that all components fit, sophisticated PCB design is required.

  • Round HDI PCB

    Round PCBs are utilized in a wide range of applications, including consumer electronics such as alarm clocks. HDI PCBs that are round are used in medical equipment and smartwatches.

  • Customized HDI PCB

    We can create any type of Customized HDI PCB for you using PCB tools such as Kicad and Altium. These customized PCBs are capable of providing you with a greater number of functionalities as you wish.

HDI PCB by Materials (5)

  • Isola 370HR HDI PCB

    We have the Isola 370HR HDI PCB in stock, which has an operating temperature of 180°C, making it a High Tg board. It’s made of long-lasting FR-4 material and fabricated using FR4 processing.

  • Taconic HDI PCB

    We have a variety of Taconic HDI PCBs available. For example, the TC350 Taconic laminate is a ceramic-filled PTFE-based laminate. Its Rq = 1 m electrodeposited copper foil covering is appealing to PCB designers.

  • Shengyi HDI PCB

    Telecom servers might benefit from the Shengyi HDI PCB. This is due to the fact that it has a high wire density advantage. We manufacture multilayer rigid-flexible PCBs from Shengyi’s S1000h.


    Because of its capacity to withstand high temperatures, the MEGTON 6 HDI PCB performs admirably. Mobile, broadband, and wireless applications can all benefit from this HDi and High Tg board.


    Our TUC HDI PCB is known for having outstanding impedance control. It’s a widely deployed PCB for a variety of applications. This Taiwan Union material is suitable for board measurements up to 24 x 28 inches.

HDI PCB Advantages

Fast Delivery Time
Fast Delivery Time
PCBMay can produce the prototype PCBs within 24hour after confirming the engineering questions. Don't hesitate to contact us.
Quality Control
Quality Control
PCBMay follows the IPC Class 2 or Class 3 quality control. There're IQC, IPQC, QPC, FQC, OQC, and provide high-quality products for customers.
Good Communication
Good Communication
PCBMay has one professional team to support our customers and no language barrier & 7*24h communication service.
Laboratory Test
Laboratory Test
PCBMay does a lot of tests during production, such as E-test, function test, and laboratory test, also provide micro-section for each shipment.

PCBMay HDI PCB Properties

Our HDI manufacturing capacity allows us to fulfill any HDI PCB requirements you may have.

Low dielectric loss tangent or dissipation factor (Df)

Copper thickness 0.5oz to 10oz

Board type: Rigid and Rigid-flex

Board Thickness: Up to 10mm

Copper Thickness: Surface finish: ENIG, Lead-free HASL, OSP

Drill Hole Diameter: Mechanical (≥0.15mm) or laser (0.1mm)

We accommodate special requests too.

PCBMay HDI PCB Properties
PCBMay Leading HDI PCB Manufacturer

PCBMay HDI PCB Production

Advanced PCB fabrication technologies are used to create our quality HDI PCB.

We follow ISO 9000 and ISO 1400 standards, and we have Quality Control and Environmental Management Systems in place.

We employ the safest PCB manufacturing processes to ensure that your goods perform properly.

You can collaborate with our senior engineering team on your PCB.

We can assist you with circuit board design if necessary.

Even with a short lead-time, we can quickly produce custom-made HDI PCB. No hassle or delays.

PCBMay is a Custom HDI PCB Manufacturer for You

As a UL certificated PCB company, PCBMay manages the quality and assure to offer our customers high standard HDI PCB.

If you want to have a PCB supplier for your business, PCBMay is always here to support you.

PCBMay is an advanced HDI PCB supplier with over 12 years of experience and our customers are all around the world like the USA, Canada, Germany, UK, Spain, Italy, Israel, and so on.

The product applications are medical devices, aerospace, defense, military, industrial controls, LED lighting.

PCBMay is a Custom HDI PCB Manufacturer

Your Qualified HDI PCB Manufacturer

Your Qualified HDI PCB Manufacturer
Your Qualified HDI PCB Manufacturer 2

Are you looking for a PCB supplier who could help you to solve all issues for your design? Good news! PCBMay proudly tells you that we are your best choice and perfect for all types of HDI PCBs for your demand.

For over 12 years in this industry, we have had full capabilities and a lot of experience with regard to PCB fabrication. Our HDI PCB will suit your requirement.

We have the quick turn service for the prototype PCB, therefore, when you need to produce HDI PCB as fast delivery, please send your Gerber data to us, we will provide a quotation with 1-2h.

As an ISO 9001 certificated factory, PCBMay strictly controls the quality of products and provides customers with high-quality HDI PCBs. We also ensure to deliver the product within the scheduled delivery time.

HDI PCB Fabrication

HDI PCB Fabrication

Our company’s mission statement includes taking good care of you as a customer.

The HDI PCB that we will send you will meet all of your industrial or personal PCB needs.

Advanced PCB fabrication technologies are used to create our quality HDI PCB.

We keep a close eye on Quality Control and Environmental Management Systems since we follow ISO 9000 and ISO 1400 standards.

Our HDI PCB is created using the most up-to-date PCB techniques available.

We practice strict Quality Assurance protocols.

We always follow international norms. We want to make certain that your order arrives in perfect condition.

Automated Optical Inspection (AOI), Flying Probe Testing, In-Circuit Testing, and Fixture Testing are some of the methods we use.

If you have any questions about PCB testing, just ask!

HDI PCB Applications

HDI PCB for Power Applications

Our HDI PCB is used in power applications such as automotive power boards, electric car batteries, and power electronics.

HDI PCB for Commercial Applications

For maximum durability, HDI PCB for Commercial Applications can be equipped with gold fingers. Automotive Dashboard is a good illustration of how it may be used.

HDI PCB for Computer Applications

Low-loss and high-speed functionality are required by HDI PCB for Computer Applications. It’s intended for usage in entertainment and communication devices.

HDI PCB for Telecom Applications

Telecom, Mobile Phone, Backplane, and Cell Phone Module are all covered by HDI PCB for Telecomm applications. Immersion Gold is preferred as surface finish.

HDI PCB for Medical Applications

There is less radio frequency interference and electromagnetic wave interference on our HDI PCB for Medical Applications. This is why it’s popular.

HDI PCB Production Details As Following Up

Layer Count1-40layers
Base MaterialKBShengyiShengyiSF305FR408FR408HRIS410FR406GETEK370HRIT180ARogers4350BRogers4000PTFE Laminates(Rogers seriesTaconic seriesArlon seriesNelco series)Rogers/Taconic/Arlon/Nelco laminate with FR-4 material(including partial Ro4350B hybrid laminating with FR-4)
Board TypeBackplane、HDI、High multi-layer 、blind&buried PCB、Embedded Capacitance、Embedded resistance board 、Heavy copper power PCB、Backdrill.
Board Thickness0.2-5.0mm
Copper ThicknessMin. 1/2 OZ, Max. 10 OZ
PTH Wall25um(1mil)
Maximum Board Size1100*500mm(43”*19”)
Min laser drilling size4mil
Min. Spacing/Tracing2.7mil/2.7mil
Solder MaskGreen, Black, Blue, Red, White, Yellow, Purple matte/glossy
Surface TreatmentFlash gold(electroplated gold)ENIGHard goldFlash goldHASL Lead-free OSPENEPIGSoft goldImmersion silverImmersion TinENIG+OSP, ENIG+Gold finger, Flash gold(electroplated gold)+Gold finger, Immersion silver+Gold finger, Immersion Tin+Gold finger.
Min. Annular Ring3mil
Aspect ratio10:1(HASL Lead-free HASL LeadENIGImmersion TinImmersion silverENEPIG);8:1(OSP)
Impedance control±5ohm(<50ohm), ±10%(≥50ohm)
Other TechniquesBlind/Buried Via
Gold Fingers
Press Fit
Via in Pad
Electrical Test

Here there’re many laminate material datasheets, they’re useful and helpful for you, please see them:

TU-872Modified EpoxyDOWNLOAD2003403.8-4.03.8
RO 3010Cer/PTFEDOWNLOAD50010.2
RO 4003Hydrocarbon/CerDOWNLOAD>2804253.38
RO 4350BHydrocarbon/CerDOWNLOAD>2803903.48
RT/duroid 5880PTFE/GlassDOWNLOAD5002.2
ISOLAPolyclad 370HRFR4DOWNLOAD1703404.8-5.1
HitachiMCL-BE- 67GModified EpoxyDOWNLOAD1403404.94.4
MCL-LX-67YSpecial LaminateDOWNLOAD185-195325-3453.4-3.6
NelcoN4000-13Modified EpoxyDOWNLOAD210-2403653.73.6
N4000-13EPModified EpoxyDOWNLOAD210-2403503.43.2
N4000-13SIModified EpoxyDOWNLOAD210-2403503.43.2
N4000-13EP SIModified EpoxyDOWNLOAD210-2403503.43.2
ArlonArlon 25NCerDOWNLOAD2603.38
Arlon 25FRCerDOWNLOAD2603.58
Arlon 33NPolymideDOWNLOAD>2503534
Arlon 35NPolymideDOWNLOAD>2503634.2
Arlon 85NPolymideDOWNLOAD2503874.2
StablcorST325DOWNLOADThermal conductivity:75w/m.k(with 1oz copper)
ST10DOWNLOADThermal conductivity:325w/m.k(with 1oz copper)
Bergquistht-04503DOWNLOADThermal conductivity:2.2w/m.k(with 1oz copper)


PCBMay offers flexible shipping methods for our customers, you may choose from one of the methods below.

1. DHL

DHL offers international express services in over 220 countries.
DHL partners with PCBMay and offers very competitive rates to customers of PCBMay.
It normally takes 3-7 business days for the package to be delivered around the world.

DHL Forwarder

2. UPS

UPS gets the facts and figures about the world’s largest package delivery company and one of the leading global providers of specialized transportation and logistics services.
It normally takes 3-7 business days to deliver a package to most of the addresses in the world.

UPS Forwarder

3. TNT

TNT has 56,000 employees in 61 countries.
It takes 4-9 business days to deliver the packages to the hands
of our customers.

TNT Forwarder

4. FedEx

FedEx offers delivery solutions for customers around the world.
It takes 4-7 business days to deliver the packages to the hands
of our customers.

Fedex Forwarder

5. Air, Sea/Air, and Sea

If your order is of large volume with PCBMay, you can also choose
to ship via air, sea/air combined, and sea when necessary.
Please contact your sales representative for shipping solutions.

Note: if you need others, please contact your sales representative for shipping solutions.

On our website you can use the following payment methods:

Telegraphic Transfer(TT): A telegraphic transfer (TT) is an electronic method of transferring funds utilized primarily for overseas wire transactions. It’s very convenient to transfer.

Bank/Wire transfer: To pay by wire transfer using your bank account, you need to visit your nearest bank branch with the wire transfer information. Your payment will be completed 3-5 business days after you have finished the money transfer.

Paypal: Pay easily, fast and secure with PayPal. many other credit and debit cards via PayPal.

Credit Card: You can pay with credit card: Visa, Visa Electron, MasterCard, Maestro.

    • “Your PCB services were recommended to me by a friend. I wanted assistance with the construction of my prototype. Your assistance was really helpful, as it served as the foundation for my OEM prototype. Continue with your manufacturing of affordable PCBs. It’s good for us designers. Thank you, and I will buy from you again.”

      Gerald I. Martz, PCB Engineer from Florida, USA
    • “I ran out vital PCB supplies in the middle of the pandemic. But PCBMay was able to give me what I want. I hope you continue to do a fantastic job with this supply, since we need trusted manufacturers. In terms of product choices, you’ve pampered me by allowing me to choose whatever I want. You can achieve a lot with backing like this one. Yes, I will recommend to my friends in the industry also.”

      Andrew Fiel, Procurement Officer from France
    • “I placed a large order with PCBMay right before the new year so I could start the year right away with my HDI PCB prototype. I can truly say that every product I’ve tried has proven to be effective! The Chinese brand is beautiful, and the materials are easy to work with. Excellent salespeople! If you don’t understand what the parts are, they will explain. You are not going to be disappointed.”

      Harry Sullivan, PCB Layout Engineer Product Development from UK

    HDI PCB: The Ultimate FAQ Guide

    The size of PCBs has been changing day by day. HDI PCB technology allows for the downsizing of printed circuit boards while simultaneously increasing wire and circuit density.

    The demand for smaller and compact products with more performance and speed is vastly increasing day by day.

    As a result, HDI technology brings such evolution in the PCB industry.

    So, what about a broad discussion on HDI PCB?

    Following this FAQ guide, you will be familiar with a number of fundamental facts concerning HDI PCBs. These might be helpful for you to give you a clear image of the PCB.

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