Your Reliable Custom Multilayer PCB Manufacturer Since 2008

PCBMay is a professional multilayer PCB boards manufacturer in China, who provides many different types of multilayer PCBs for you.

  • Over 15 years PCB manufacturing experience
  • No minimum order quantity even 1 piece
  • Offer 48h quick-turn service for the prototype PCB
  • Certified by UL from US and Canada.
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Multilayer PCB is Your Best Choice for Your Project

If you’re looking for a good multilayer PCB supplier, PCBMay is your best choice.

We could manufacture different types of PCB based on your requirement.

You could order from a prototype to test our quality at first, then place a mass production order for us.

Please send us your Gerber file, we will offer the best price within 1-2 hours.

PCBMay can provide many types of multilayer PCB for you, such as 4-40 layers.

When you have any new inquiry, please send it to us.

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Multilayer PCB Series

4layer Multilayer PCB

The 4 layer PCB is very popular and its stack-up is quite elaborate. Two inner layers, inner layers 1 and 2, are sandwiched between the top and bottom layers. There’re 4layer rigid boards or 4layer flex PCBs or 4layer flex-rigid PCBs.

6layer Multilayer PCB

The 6 PCB stack-up is very popular, normally, there’re top signal, inner signal, ground plane, power plane, inner signal, and bottom signal, what’s more, sometimes they’re different or single impedance controls among the layers.

8layer Multilayer PCB

The 8 layer PCB stack-up offers ample routing space for multiple power islands. All signal layers have a minimum of one referencing power plane. The power and ground layer in the center offers good inter-plane capacitance.

10layer Multilayer PCB

The 10 layer PCB board is a circuit board that has 10 layers. They are fixed tightly together with strong mutual relations between each of the layers. PCBMay has more experience in making multilayer boards such as 10 layer PCB.

12layer Multilayer PCB

The 12 layer PCB board offers the foundation for a modern automotive electronic circuit, the 12 layer stack-up deals with specific requirements for tracking heights and material thickness in producing multi-layer PCBs.

14layer Multilayer PCB

PCBMay can help you design custom 14 layer rigid printed circuit boards with the standard FR4 or high TG170 materials, even 14 layers with flex-rigid PCB with polyimide material, please don’t hesitate to send RFQ to our

Multilayer PCB By Types (5)

Multilayer PCB By Copper Thickness (8)

Multilayer PCB By Materials (7)

Multilayer 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 Multilayer PCB Tolerances

There are many tolerances in the multilayer PCB manufacturing process, therefore, how does PCBMay control the specifications within the tolerance. Typically, PCBMay follows IPC class 2 or class 3 for quality control. You will see the standard tolerance as follows:

  • Board thickness: +/-10%
  • PTH hole: +/-0.075mmm
  • NPTH hole: +/-0.05mm
  • Press-fit hole: +/-0.05mm
  • Outline Registration: +/-0.1mm
  • The remaining thickness of V-scoring: +/-0.1mm
Drone Multilayer PCB
Multilayer PCB Drilling

PCBMay Multilayer PCB Production

PCBMay has the advanced equipment to produce the first-class multilayer PCB.  There are many manufacturing processes, you will see the details as follows:

Cutting materials – Inner layer – Laminating with outer layer – Drilling – Plating through the hole – Pattern exposing & developing – Pattern plating – Etching – Soldermask exposing& developing – Silkscreen print – Surface finish – CNC – Testing – FQC – Packing – Shipment

PCBMay has been investing to improve the production lines and meet the requirements of our customers.

Why Choose PCBMay for Your Multilayer PCB

As a professional multilayer PCB manufacturer, PCBMay has advanced multilayer PCB types of equipment to manufacture high-quality printed circuit boards for your project. All our machines are from the USA and EU, what’s more, we have our own testing Lab. and also provide COC reports for each project for you.

PCBMay is an expert to produce many types of PCBs for you, from 4layer to 40layer, so when you have these kinds of inquiries, please send them to us right now.

Why Choose PCBMay for Your Multilayer PCB

What Is A Multilayer PCB

Multilayer PCB Manufacturer
Multilayer PCB Manufacturer

The printed circuit board determines the process and price according to the number of PCB layers. Standard circuit boards are divided into single-sided PCB and double-sided PCB.

However, with the development of science and technology and the upgrading of products, the requirements for circuit boards are getting higher and higher, so the demand for multi-layer circuit boards is increasing.

Multilayer circuit boards generally have more than 2-layer or 3-layer, including inner and outer layers. They are pressed by optical equipment to allow the inner and outer layers to be laminated on one board.

There are different types such as rigid, flexible, and rigid-flex multilayer boards.

What are you waiting for? Please send your inquiry to us right now.

Multilayer PCB Fabrication

Multilayer PCB Etching

There are many types of surface finishes for multilayer PCBs. Do you know which one is best for your product?

Let’s take a look at them as follows:

  • HASL(Hot Air Solder Leveling)
  • ENIG(Electroless Nickel Immersion Gold)
  • ENEPIG(Electroless Nickel Electroless Palladium Immersion Gold)
  • Immersion Tin
  • Immersion Silver
  • OSP(Organic Solderability Preservative)
  • Hard Gold


Multilayer PCB Testing

When you order multilayer PCBs, do you want to know how to test them during production? What’s more, this process is one of the most important for PCB quality. Let’s have a look at them.

There’re 6 PCB testing methods as follows:

  • Automated Optical Inspection (AOI)
  • Flying Probe Testing
  • In-Circuit Testing
  • Fixture Testing
  • X-Ray Inspection
  • Micro-Sectioning Analysis

OEM & ODM Multilayer PCB Applications

Aerospace Products

Aerospace applications are including radar systems, control tower systems, power supply, LED lighting systems, etc., most of them are used multilayer PCBs.

Medical Products

The multilayer PCBs for medical applications are usually high-tech boards, such as HDI circuit boards, flexible circuit boards, and rigid-flex PCBs. What’s more, they have via’s plugging with resin epoxy and plating over.

Automotive Application

To save energy and be environmentally friendly, car chargers become more and more popular. These kinds of multilayer PCBs are usually heavy copper PCBs, moreover, the materials are Shengyi TG170 or IT180.

5G Products

PCBMay has served many 5G customers all around the world, whose products are including the smartwatch, wireless telecommunication, radio antenna, network equipment, fiber optic cables, optical modules, etc.

LED Lighting

LED lighting PCBs are normally single-side layer or double-side layers, but as for multilayer LED lighting boards, there’re too many testing points and the fixture test cost is very high.

Multilayer 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.

    • “We have been working with PCBMay for many years and they provide good delivery time, furthermore, their quick-turn time for multilayer is on time for each order and don’t delay it, we’re happy about it. Thanks for all your good and kind support.”

      Roman Ryabov, CEO from Canada
    • “We’re from the USA and the time zone is totally different, however, PCBMay can give the order confirmation and provide engineering questions in our daytime. Furthermore, they have one professional team and no language barrier. Sometimes, their engineering team gives us some design advice for our choice.”

      Sergio Matos, Purchase Director from USA
    • “PCBMay doesn’t have minimum order quantity, even 1pcs. We are one WiFi solution company and have many multilayer PCB prototypes, so we often order small quantities from PCBMay, but they’re happy to work with us. One more important thing, they suggest us to ship several models together, then save cost for us.”

      Uwe Gerhardt, Designer from Germany

    Multilayer PCB: The Ultimate FAQ Guide

    Are you struggling with the low functionality of your electronic devices?

    Multilayer PCB is a worthwhile circuit board that solves different circuit issues, like functionality, durability, signal transmission, etc. This PCB improves the overall performance of an electronic appliance through its outstanding features.

    PCBMay is a trustworthy multilayer printed circuit board manufacturer in China. We provide high-class assembly services for PCBs with numerous layer counts. This FAQ guide will let you know the ins and outs of multilayer circuit boards.

    We hope it will help you upgrade your electronic projects. Let’s make a move.

    What Are the Advantages of Multilayer PCB

    Although the design of multilayer circuit board is complex, there are also some advantages, please see them as following:

    Reduce Impedance Control

    Multilayer circuit boards adopt a multi-layer circuit patten design, which greatly shortens the circuit line length, thereby reducing impedance control. Also reducing signal delay.

    Improve power transmission efficiency

    Multiple conductive layers inside a multilayer circuit board can transmit multiple signals at the same time, which greatly improves the efficiency of power transmission. In addition, multilayer circuit boards have significant advantages in the field of high-speed digital signal processing because insulating materials between conductive layers can reduce electromagnetic interference.

    Reduce equipment weight

    Due to the complex internal structure of the multilayer circuit board, what’s more, its relatively small thickness, its weight is lighter than that of traditional single-side or double-side boards.

    It’s very popular for the HDI PCB and high-frequency PCB, which is especially important for portable and mobile devices.

    What Are the Disadvantages of Multilayer PCB

    There are many advantages of multilayer boards, but there are some disadvantages and please see them below:

    Ulnerable to Manufacturing Processes

    The manufacturing process of multilayer circuit boards involves many complex processes, such as lamination, drilling, electroplating, solder mask, etc. Any mistakes in these process may lead to product defects, such as offset drilling, poor plating, delamination, etc.

    High Cost

    The manufacturing process of multilayer circuit boards requires high precision equipment and materials, as well as a large amount of human resources. These factors have led to higher production costs for them.

    Takes Up a Lot of Space

    Although multilayer circuit boards can provide more circuit lines space, due to their vertical stack-up design, the thickness is increased, thus occupying more space. This limits its use in some space-constrained applications to some extent.

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