Large PCB Company for 3-Layer PCB

PCBTok produces excellent customized PCBs like the 3-Layer PCB.

Normally, this product is by special request, since PCB stack-ups occur in even numbers.

As a consistent maker of Prototype PCB and OEM PCB, we accept the 3 Layer PCB challenge.

Inquire from our sales representatives now. We will answer you promptly.

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Sophisticated 3-Layer PCB Method Applied

A 3 Layer PCB is a multilayer board. This stack-up design is in some applications, like to IT, industrial control, and consumer electronics

  • For high-density interconnects (HDI) 3 Layer boards, we have PCB equipment.
  • Responses to queries about specialty electronics products answered fast
  • Sturdy, soldering work, and, if applicable, a complimentary soldering sample.

Contact us now to avail!

One of our products is a digital PCB, sometimes known as 3 Layer PCB.

Everything you’ll ever need about this special piece is covered in this feature write-up.

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3 Layer PCB By Feature

Customized 3 Layer PCB

A Customized 3 Layer PCB is one on which the customer has chosen to use particular modalities. Typically, this is a result of the design of microscopic components.

Digital 3 Layer PCB

Although the Digital 3 Layer PCB has many uses, commercial sectors, especially in digital commerce, prefer it. This PCB powers many e-commerce functions and transactions.

HDI 3 Layer PCB

No matter if it is a rigid PCB type or a flexible (FPC) kind, our production team can complete HDI 3 Layer PCB for your timetable preference.

Embedded 3 Layer PCB

If the PCBs are special for some consumers due to the device’s unusual design, Embedded 3-Layer PCBs are essential. Especially true for bulk product orders.

5G 3 Layer PCB

The capacity to adapt to high-speed internet is a distinguishing feature of 5G 3 Layer PCB. Your product’s on-the-go finalized design is taken into account.

Wireless 3 Layer PCB

Clients who must adhere to WAP, or Wireless Application Protocol, purchase substantial quantities of Wireless PCB. The repute of this sort of PCB is good.

3 Layer PCB By Thickness & Shape (6)

  • 1 oz 3 Layer PCB

    It is frequently used since it is the standard measurement for PCB stack-ups is 1 ounce. The 1 oz 3 Layer PCB is expected to operate typically.

  • 2 oz 3 Layer PCB

    But when the device would need more interconnects, the next weigh category for PCB is considered. This means using 2 oz 3 Layer PCB.

  • 3 oz 3 Layer PCB

    If you require a thick copper PCB with customizable layers, such as a tri-layer PCB, our 3 oz 3 Layer PCB makes things simpler for you. Just ask us for more details.

  • Round 3 Layer PCB

    Our experience with PCBs referred to as Smart Watch PCBs serves as an example of a round 3 Layer PCB. But we also produce different round PCBs.

  • Custom Shape 3 Layer PCB

    Working with the PCBTok design team is sometimes required for the Custom Shape 3 Layer PCB. We have developed cutting-edge PCB with wearable designs.

  • Panelized 3 Layer PCB

    Jump Cut or V-scoring 3 Layer PCBs are other names for Panelized PCBs. Because of this quality, it becomes a much more affordable piece. Surely, these fit your budget.

3 Layer PCB By Surface Finish & Color (6)

  • ENIG 3 Layer PCB

    ENIG is one of the frequently chosen surface treatments. Consequently, ENIG 3 Layer PCB is growing in popularity because of its superior protective trait.

  • HASL 3 Layer PCB

    Have no doubt about it, better circuit configurations are simply possible with Double-Layer PCB Layer than with Single-sided/ Single-layer PCBs.

  • Lead-free HASL 3 Layer PCB

    Lead-free HASL 3 Layer PCB ensures adherence to RoHs regulations. This surface treatment is more commonly referred to as eco-friendly.

  • Red 3 Layer PCB

    Red 3 Layer PCB is feasible. It is a better solution for your visuals if you are tired of seeing the usual green PCB. You need to specify it beforehand.

  • Blue 3 Layer PCB

    With the help of our personalized PCB soldermask colors, Blue 3-Layer PCB could also be produced. People are interested in this PCB for IT use.

  • Green 3 Layer PCB

    High-quality components that are applied in a variety of automotive PCB sub-parts. For instance, these green PCBs are electrical accessory gadgets for electric cars.

Successful 3 Layer PCB Products

Your business will expand with the help of PCBTok’s 3 Layer PCB.

Our PCBs are made to last—they are very effective.

We incorporate efficient heat management into your product when you order a 3 Layer PCB.

As well, our capability in making HDI, High-Speed, and High-Power 3 Layer PCBs design will make you believe in us.

We’ve worked in the PCB industry for a very long time, and not only in China.

We are your everywhere-competent 3 Layer PCB provider.

Successful 3 Layer PCB Products
Trustworthy 3 Layer PCB Process

Trustworthy 3 Layer PCB Process

Consumer, medical, and even computer PCBs are now included in the application of 3 Layer PCBs.

In sum, middle-range PCBs should not be used for single-sided applications. Even those intended for a high layer count.

That is why some PCB designers land on the 3 Layer PCB design.

To help them, we use contemporary 3 Layer PCB testing techniques.

We want to ensure the highest standard PCB and PCB assembly for this special kind of 3-layer PCB.

Thrive With Our PCB Support & Capability

We use modern 3 Layer PCB testing techniques like Micro Metallographic Section Analysis and Fixture Test to ensure the highest standard PCB and PCB assemblage.

Other tests cover the automated process (AOI), the complete set of thermal tests, pus solderability tests.

Also, we want to mention that if 3 Layer PCB assembly is included, we perform chip testing. This relates to ICs, microcontrollers and all BGA kinds.

Please ask PCBTok if you need further details.

Thrive With Our PCB Support & Capability

Built-in Durability: PCBTok 3 Layer PCB

Built-in Durability PCBTok 3 Layer PCB
built in durability pcbtok 3 layer pcb 1

As a multilayer PCB fabricator, we have no issue making your 3-Layer PCB even though it is an unique item.

We are very used to customized requests.

In fact, we have made quite a lot of special, one-of-a-kind PCBs for leading brands in the electronics industry.

We are often an OEM or EDM PCB of choice for not just 3 Layer PCB, but for RF PCBs, SSD PCBs, Drone PCBS, and more.

If you want to avail of our offers, contact us now!

3 Layer PCB Fabrication

3 Layer PCB is possible with PCBTok

Departing from the usual 4 Layer or 6 Layer PCB count is the special 3 layer PCB product.

We are constantly keeping in touch with new innovations.

So, if you desire a special class of PCB like this, we can always accommodate it.

Reworkability is a benefit of the customized type of PCB like this one.

You will understand how we operate after studying this page.

Production of 3 Layer PCB

We encourage you to consider innovative PCB designs.

Therefore, we are not restricting PCB designers who prefer this odd option.

We offer top-notch 3 Layer PCB production methods, such as:

Material to SMT/ PTH, Solder Paste Methods, 100% Visual Inspection—

And of course, Final Assembly as well as careful packaging.

We always aim to do 3 Layer PCB right by you!

OEM & ODM 3 Layer PCB Applications

3 Layer PCB for Commercial Applications

We are very attentive when making this 3 Layer PCB for industrial equipment. With us, you won’t be spending money on a low-cost PCB part.

3 Layer PCB for Power Applications

Due to their effectiveness in regulating heat, 3 Layer PCB for Power Applications is considered by some customers as a wonderful solution.

3 Layer PCB for Lighting Applications

Given that LED devices need efficient cooling, several LED 3 Layer PCB for lighting applications are desirable. Arguably, this can be done with original 3 Layer designs.

3 Layer PCB for Consumer Devices

As a supplier, having on stock 3 Layer PCB for Consumer Devices would be able to satisfy consumers of digital products who constantly demand supply replenishment.

3 Layer PCB for the Automotive Industry

The versatile 3-Layer PCB is a type of PCB appropriate for the automotive industry. This is referring to the peripheral components, not the engine components, which require more sophisticated multilayer PCBs.

3 Layer PCB 2nd banner
Industry’s Best 3 Layer PCB

Any type of electronics vehicle part, digital device, or semiconductor, we can equip—

With our expertly crafted 3 Layer PCB.

3 Layer PCB Production Details As Following Up

NO Item Technical Specification
Standard Advanced
1 Layer Count 1-20 layers 22-40 layer
2 Base Material KB、Shengyi、ShengyiSF305、FR408、FR408HR、IS410、FR406、GETEK、370HR、IT180A、Rogers4350、Rogers400、PTFE Laminates(Rogers series、Taconic series、Arlon series、Nelco series)、Rogers/Taconic/Arlon/Nelco laminate with FR-4 material(including partial Ro4350B hybrid laminating with FR-4)
3 PCB Type Rigid PCB/FPC/Flex-Rigid Backplane、HDI、High multi-layer blind&buried PCB、Embedded Capacitance、Embedded resistance board 、Heavy copper power PCB、Backdrill.
4 Lamination type Blind&buried via type Mechanical blind&burried vias with less than 3 times laminating Mechanical blind&burried vias with less than 2 times laminating
HDI PCB 1+n+1,1+1+n+1+1,2+n+2,3+n+3(n buried vias≤0.3mm),Laser blind via can be filling plating 1+n+1,1+1+n+1+1,2+n+2,3+n+3(n buried vias≤0.3mm),Laser blind via can be filling plating
5 Finished Board Thickness 0.2-3.2mm 3.4-7mm
6 Minimum Core Thickness 0.15mm(6mil) 0.1mm(4mil)
7 Copper Thickness Min. 1/2 OZ, Max. 4 OZ Min. 1/3 OZ, Max. 10 OZ
8 PTH Wall 20um(0.8mil) 25um(1mil)
9 Maximum Board Size 500*600mm(19”*23”) 1100*500mm(43”*19”)
10 Hole Min laser drilling size 4mil 4mil
Max laser drilling size 6mil 6mil
Max aspect ratio for Hole plate 10:1(hole diameter>8mil) 20:1
Max aspect ratio for laser via filling plating 0.9:1(Depth included copper thickness) 1:1(Depth included copper thickness)
Max aspect ratio for mechanical depth-
control drilling board(Blind hole drilling depth/blind hole size)
0.8:1(drilling tool size≥10mil) 1.3:1(drilling tool size≤8mil),1.15:1(drilling tool size≥10mil)
Min. depth of Mechanical depth-control(back drill) 8mil 8mil
Min gap between hole wall and
conductor (None blind and buried via PCB)
7mil(≤8L),9mil(10-14L),10mil(>14L) 5.5mil(≤8L),6.5mil(10-14L),7mil(>14L)
Min gap between hole wall conductor (Blind and buried via PCB) 8mil(1 times laminating),10mil(2 times laminating), 12mil(3 times laminating) 7mil(1 time laminating), 8mil(2 times laminating), 9mil(3 times laminating)
Min gab between hole wall conductor(Laser blind hole buried via PCB) 7mil(1+N+1);8mil(1+1+N+1+1 or 2+N+2) 7mil(1+N+1);8mil(1+1+N+1+1 or 2+N+2)
Min space between laser holes and conductor 6mil 5mil
Min space between hole walls in different net 10mil 10mil
Min space between hole walls in the same net 6mil(thru-hole& laser hole PCB),10mil(Mechanical blind&buried PCB) 6mil(thru-hole& laser hole PCB),10mil(Mechanical blind&buried PCB)
Min space bwteen NPTH hole walls 8mil 8mil
Hole location tolerance ±2mil ±2mil
NPTH tolerance ±2mil ±2mil
Pressfit holes tolerance ±2mil ±2mil
Countersink depth tolerance ±6mil ±6mil
Countersink hole size tolerance ±6mil ±6mil
11 Pad(ring) Min Pad size for laser drillings 10mil(for 4mil laser via),11mil(for 5mil laser via) 10mil(for 4mil laser via),11mil(for 5mil laser via)
Min Pad size for mechanical drillings 16mil(8mil drillings) 16mil(8mil drillings)
Min BGA pad size HASL:10mil, LF HASL:12mil, other surface technics are 10mil(7mil is ok for flash gold) HASL:10mil, LF HASL:12mil, other surface technics are 7mi
Pad size tolerance(BGA) ±1.5mil(pad size≤10mil);±15%(pad size>10mil) ±1.2mil(pad size≤12mil);±10%(pad size≥12mil)
12 Width/Space Internal Layer 1/2OZ:3/3mil 1/2OZ:3/3mil
1OZ: 3/4mil 1OZ: 3/4mil
2OZ: 4/5.5mil 2OZ: 4/5mil
3OZ: 5/8mil 3OZ: 5/8mil
4OZ: 6/11mil 4OZ: 6/11mil
5OZ: 7/14mil 5OZ: 7/13.5mil
6OZ: 8/16mil 6OZ: 8/15mil
7OZ: 9/19mil 7OZ: 9/18mil
8OZ: 10/22mil 8OZ: 10/21mil
9OZ: 11/25mil 9OZ: 11/24mil
10OZ: 12/28mil 10OZ: 12/27mil
External Layer 1/3OZ:3.5/4mil 1/3OZ:3/3mil
1/2OZ:3.9/4.5mil 1/2OZ:3.5/3.5mil
1OZ: 4.8/5mil 1OZ: 4.5/5mil
1.43OZ(positive):4.5/7 1.43OZ(positive):4.5/6
1.43OZ(negative ):5/8 1.43OZ(negative ):5/7
2OZ: 6/8mil 2OZ: 6/7mil
3OZ: 6/12mil 3OZ: 6/10mil
4OZ: 7.5/15mil 4OZ: 7.5/13mil
5OZ: 9/18mil 5OZ: 9/16mil
6OZ: 10/21mil 6OZ: 10/19mil
7OZ: 11/25mil 7OZ: 11/22mil
8OZ: 12/29mil 8OZ: 12/26mil
9OZ: 13/33mil 9OZ: 13/30mil
10OZ: 14/38mil 10OZ: 14/35mil
13 Dimension Tolerance Hole Position 0.08 ( 3 mils)
Conductor Width(W) 20% Deviation of Master
1mil Deviation of Master
Outline Dimension 0.15 mm ( 6 mils) 0.10 mm ( 4 mils)
Conductors & Outline
( C – O )
0.15 mm ( 6 mils) 0.13 mm ( 5 mils)
Warp and Twist 0.75% 0.50%
14 Solder Mask Max drilling tool size for via filled with Soldermask (single side) 35.4mil 35.4mil
Soldermask color Green, Black, Blue, Red, White, Yellow,Purple matte/glossy
Silkscreen color White, Black,Blue,Yellow
Max hole size for via filled with Blue glue aluminium 197mil 197mil
Finish hole size for via filled with resin  4-25.4mil  4-25.4mil
Max aspect ratio for via filled with resin board 8:1 12:1
Min width of soldermask bridge Base copper≤0.5 oz、Immersion Tin: 7.5mil(Black), 5.5mil(Other color) , 8mil( on copper area)
Base copper≤0.5 oz、Finish treatment not Immersion Tin : 5.5 mil(Black,extremity 5mil), 4mil(Other
color,extremity 3.5mil) , 8mil( on copper area
Base coppe 1 oz: 4mil(Green), 5mil(Other color) , 5.5mil(Black,extremity 5mil),8mil( on copper area)
Base copper 1.43 oz: 4mil(Green), 5.5mil(Other color) , 6mil(Black), 8mil( on copper area)
Base copper 2 oz-4 oz: 6mil, 8mil( on copper area)
15 Surface Treatment Lead free Flash gold(electroplated gold)、ENIG、Hard gold、Flash gold、HASL Lead free、OSP、ENEPIG、Soft gold、Immersion silver、Immersion Tin、ENIG+OSP,ENIG+Gold finger,Flash gold(electroplated gold)+Gold finger,Immersion silver+Gold finger,Immersion Tin+Gold finge
Leaded Leaded HASL
Aspect ratio 10:1(HASL Lead free、HASL Lead、ENIG、Immersion Tin、Immersion silver、ENEPIG);8:1(OSP)
Max finished size HASL Lead 22″*39″;HASL Lead free 22″*24″;Flash gold 24″*24″;Hard gold 24″*28″;ENIG 21″*27″;Flash gold(electroplated gold) 21″*48″;Immersion Tin 16″*21″;Immersion silver 16″*18″;OSP 24″*40″;
Min finished size HASL Lead 5″*6″;HASL Lead free 10″*10″;Flash gold 12″*16″;Hard gold 3″*3″;Flash gold(electroplated gold) 8″*10″;Immersion Tin 2″*4″;Immersion silver 2″*4″;OSP 2″*2″;
PCB thickness HASL Lead 0.6-4.0mm;HASL Lead free 0.6-4.0mm;Flash gold 1.0-3.2mm;Hard gold 0.1-5.0mm;ENIG 0.2-7.0mm;Flash gold(electroplated gold) 0.15-5.0mm;Immersion Tin 0.4-5.0mm;Immersion silver 0.4-5.0mm;OSP 0.2-6.0mm
Max high to gold finger 1.5inch
Min space between gold fingers 6mil
Min block space to gold fingers 7.5mil
16 V-Cutting Panel Size 500mm X 622 mm  ( max. ) 500mm X 800 mm ( max. )
Board Thickness 0.50 mm (20mil) min. 0.30 mm (12mil) min.
Remain Thickness 1/3 board thickness 0.40 +/-0.10mm( 16+/-4 mil )
Tolerance ±0.13 mm(5mil) ±0.1 mm(4mil)
Groove Width 0.50 mm (20mil) max. 0.38 mm (15mil) max.
Groove to Groove 20 mm (787mil) min. 10 mm (394mil) min.
Groove to Trace 0.45 mm(18mil) min. 0.38 mm(15mil) min.
17 Slot Slot size tol.L≥2W PTH Slot: L:+/-0.13(5mil) W:+/-0.08(3mil) PTH Slot: L:+/-0.10(4mil) W:+/-0.05(2mil)
NPTH slot(mm) L+/-0.10 (4mil) W:+/-0.05(2mil) NPTH slot(mm) L:+/-0.08 (3mil) W:+/-0.05(2mil)
18 Min Spacing from hole edge to hole edge 0.30-1.60 (Hole Diameter) 0.15mm(6mil) 0.10mm(4mil)
1.61-6.50 (Hole Diameter) 0.15mm(6mil) 0.13mm(5mil)
19 Min spacing between hole edge to circuitry pattern PTH hole: 0.20mm(8mil) PTH hole: 0.13mm(5mil)
NPTH hole: 0.18mm(7mil) NPTH hole: 0.10mm(4mil)
20 Image transfer Registration tol Circuit pattern vs.index hole 0.10(4mil) 0.08(3mil)
Circuit pattern vs.2nd drill hole 0.15(6mil) 0.10(4mil)
21 Registration tolerance of front/back image 0.075mm(3mil) 0.05mm(2mil)
22 Multilayers Layer-layer misregistration 4layers: 0.15mm(6mil)max. 4layers: 0.10mm(4mil) max.
6layers: 0.20mm(8mil)max. 6layers: 0.13mm(5mil) max.
8layers: 0.25mm(10mil)max. 8layers: 0.15mm(6mil) max.
Min. Spacing from Hole Edge to Innerlayer Pattern 0.225mm(9mil) 0.15mm(6mil)
Min.Spacing from Outline to Innerlayer Pattern 0.38mm(15mil) 0.225mm(9mil)
Min. board thickness 4layers:0.30mm(12mil) 4layers:0.20mm(8mil)
6layers:0.60mm(24mil) 6layers:0.50mm(20mil)
8layers:1.0mm(40mil) 8layers:0.75mm(30mil)
Board thickness tolerance 4layers:+/-0.13mm(5mil) 4layers:+/-0.10mm(4mil)
6layers:+/-0.15mm(6mil) 6layers:+/-0.13mm(5mil)
8-12 layers:+/-0.20mm (8mil) 8-12 layers:+/-0.15mm (6mil)
23 Insulation Resistance 10KΩ~20MΩ(typical:5MΩ)
24 Conductivity <50Ω(typical:25Ω)
25 Test voltage 250V
26 Impedance control ±5ohm(<50ohm), ±10%(≥50ohm)

PCBTok 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 PCBTok and offers very competitive rates to customers of PCBTok.
It normally takes 3-7 business days for the package to be delivered around the world.


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.


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.


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.


5. Air, Sea/Air, and Sea

If your order is of large volume with PCBTok, 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.

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 a credit card: Visa, Visa Electron, MasterCard, Maestro.

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  • “PCBTok is the most helpful, considerate, reliable, and resourceful PCB online business. Really appreciate the level of service and assistance they offer to engineers and PCB designers. Our requirements for assembly service were met. I have visited several times, and each time, they are kind, understanding, and welcome. I’ve been coming here for at least two years and have received guidance on numerous PCB possibilities. Thanks much!”

    Yoad Patish, Commodity Manager Tooling, Machinery & Equipment from Israel
  • “This is my go-to location for anything about PCB assembly, PCB parts and more. Sales person “H” is incredibly understanding and enjoyable to deal with. Additionally, a really easy checkout process, they do have. Despite the fact that I have some technological difficulties, they took the time to explain my alternatives and set up my prototype PCB so I wouldn’t have to worry about anything. I received excellent service and also had a good time!”

    Bogdan Sigal, CAD/PCB Librarian & Layout Enginee from Midlands, UK
  • “The PCBTok crew offered a lot of information on all PCB part brands and assisted me in making a decision. and advantages, they were thoroughly described. Yay, PCBTok is by far better compared to all other Chinse suppliers I have dealt with before. They truly went above and above. I’d advise everyone I know who like circuit boards to use this company and their services in particular!”

    Motti Schmuel, Materials Director from Brisbane, Australia

3-Layer PCB – The Ultimate FAQ Guide

If you are not familiar with multilayer PCB design, you may be wondering what the most important issues are when designing a board. There are many factors to consider, from the number of layers to the wiring and alignment to the overall layout. If you have any questions, consider hiring a professional. Listed below are some of the most important questions to ask yourself when designing a multilayer PCB.

What are the advantages of a 3-layer PCB? In short, multilayer PCBs are more durable than single-sided PCBs. Because they have more layers and space, they can handle more circuits and add more functionality. Multilayer PCBs are ideal for high-end devices such as smartphones. These boards can perform many of the same functions as multiple single-sided boards.

The 3-layer PCBs have different layouts and bottom materials for the different layers. Alignments are located on the bottom and top layers of the 2-layer PCB. Each layer of the 4-layer PCB is connected to the next layer by a solid copper layer. The layout of these layers is critical to the success of your product, and a custom PCB design file should clearly define all planes that will be used. In addition to layout and routing, t3-layer PCBs have a wider variety of components.

The materials and characteristics of the layers used to create a 3-layer PCB vary. For example, one type has a metal core, while another is insulated with a conductive material. A special adhesive bonds these layers together. The insulating material protects the outer layers. Each layer is also separated by a conductive material. The board is usually multilayered.

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