Double Satisfaction from PCBTok’s Double-Sided PCB

The difference between Double-sided PCBs is that it has two-sided traces that come with the top layer and bottom layer. Double-sided PCBs emerge with conductive elements like copper, gold, or silver on both sides of the circuit.

Since it has two surfaces, it doubles the ability of conductive layers, having more room for other parts of the electronic.

The double-sided PCBs have a moderate level of complexity and are popularly used in a lot of applications such as lighting, aerospace, automotive and smart devices.

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Twice the Fun on Having your Double-Sided PCB Here on PCBTok

PCBTok has been one of the major manufacturers of Double-sided PCBs here on PCBTok. We specialize in doubling the capabilities of your Double-sided PCB by providing these services.

  • Top and Bottom Layout assistance from our team of professionals
  • Top-Grade materials to be used for all your Double-sided PCBs.
  • All PCBs will go through robotic and human assessors to comply with your standards.

Don’t know where to start in creating your Double-Sided PCB? Already has a design to manufacture? Contact us or give us a call here at PCBTok for your PCB needs!

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Double-Sided PCB By Feature

PTH Double-Sided PCB

Known as “Plated Through Hole” PCB, has two faces that are connected by plated holes. Most common in automotive and industrial use.

Rigid Double-sided PCB

As its name sounds, Rigid Double-Sided PCBs are kinds of PCBs that are solid and inflexible. Both sides of this PCB are stiff and hard.

Rigid-Flex Double-sided PCB

The combination of Rigid and Flex PCBs. Both the Rigid PCB and the Flex PCB can have double side characteristics.

Flex Double-sided PCB

This kind of Flex PCB has more layers than the Flex Single-layer PCB. Thus, it increases wiring density and is more fitted for routing

Prototype Double-Sided PCB

Make sure your Double-sided PCB is flawless before manufacturing requires you to have it prototype to avoid massive production loss.

Heavy Copper Double-Sided PCB

A Double-Sided PCB used to regulate heat losses and gives more reliable performance.

Double-Sided PCB By Materials (6)

  • Shengyi Double-sided PCB

    Shengyi produces copper-clad laminates. It is lead-free and provides long-lasting end products because it can survive high point temperatures.

  • Kingboard Double-sided PCB

    Kingboard is a paper-based phenolic resin. Same as Shengyi, it also has copper-clad laminates and is usually used in automatic components.

  • M4 Double-sided PCB

    This kind of Double-sided PCB has M4 Molybdenum. Has a thermal expansion of 20-260 T and can be pre-heated at 788 degrees Celcius.

  • M6 Double-sided PCB

    This Double-sided PCB is made from high-speed alloy steel. M6 Double-sided PCB comes from molybdenum intermediate type high-speed kind of steel.

  • Rogers Double-sided PCB

    Compared to other materials, Rogers has lower dielectric and lower electric signal loss because it has epoxy resin (FR4) and has no glass fiber in the middle.

  • Isola Double-sided PCB

    Comes from a well-known company, this Double-sided PCB material has high-performance prepreg and laminate. Made from mechanically spread fiberglass fabric.

Double-Sided PCB By Surface Finish (6)

How Does PCBTok Double-Sided PCB Work?

These Double-sided PCBs or also known as Two-layer PCBs are one of the most predominant types of PCB in the name of electronic industry. As the name sounds, Double-sided PCBs have two-sided traces, the top layer, and the bottom layer.

Double-sided PCB’s merged components can be used separately. One side for the first technology, the second side for another. Because of that, Double-sided PCBs create more flexibility and variety compared to Single-layer ones.

These kinds of PCBs are one of the key element for the electronic industry as it is commonly used in complex circuitry like computer processor units and medical technologies.

If you want a more complex PCB than the Single-layer but find Multi-layer PCB too complex for your product, then Double-sided PCB is the best for you.

Double-sided PCB
Double-sided PCB

Double-Sided PCB Production Process

Curious to know how PCBTok manufactures our high-quality, reliable Double-Sided PCBs? Here’s our process.

  1. After cutting and baking the board, we drill the boards based on the client’s schematic design.
  2. We process them to PTH or Black hole.
  3. Run through boards from our high-tech machines like pattern plating machines, etching machines, stripping machines, etc.
  4. 100% inspection from both robotics and visual inspectors.
  5. Carefully Packaging end-product double-sided PCBs.

Double-Sided PCB Usage

Double-sided PCBs has been very beneficial for customers who are not satisfied to Single-Layer PCB’s simplicity but

  • Reduced Cost because of reduced board size.
  • Additional space for additional components
  • Easier to manage than multilayer PCBs
  • Allow higher density component.
  • Increased heat dissipation.
Double-sided PCB Usage

Double Satisfaction from PCBTok’s Double-Sided PCBs

Double-sided PCB Production Process
Double-sided PCB Production Process

Different variations of PCBs are used in electronics and industrial applications. Double-sided PCBs are one of those. These types of PCBs are almost as same as Single-Layer PCBs, only it has two sided traces. It’s top and bottom layer are both functional unlike the Single-Layer PCBs.

Since both of its layers are functional, Double-sided PCBs allows manufacturers and creators to let traces cross over each other. Because of that, it results in higher density circuits, reduced board size, and it’s easily manageable compared to Multi-layer PCBs.

Double-sided PCBs are more cost-efficient, material saving than Single-Layer PCB but lesser complex circuitry than Multilayer PCBs.

Double-Sided PCB Fabrication

Double-sided PCB Advance Materials

Almost all high-grade advanced materials for Double-sided PCBs are very much available here in PCBTok. PCBTok only has the latest, certified, and high-grade materials for our production process.

We can do any kind of specifications to your design, especially for its raw materials. We offer materials from Shengyi, Kingboard, M4, M6, Rogers, Isola, and much more! Just request it from our team and we will gladly help you.

Double-sided PCB Solder Mask Color

The most standard Soldermask color is undeniably green for PCBs, but here on PCBTok, we prioritize your designs! PCB solder mask doesn’t only provide a protective coating on the board’s copper traces, it also adds the image to the PCB’s overall look.

PCBTok offers a wide range of color choices. Red, Blue, Green, Black, and even Transparent Soldermask! Call us here on PCBTok to know if your preferred color is available.

OEM & ODM Double-Sided PCB Applications

Double-sided PCB Desktop Application

PCBTok helps manufacturer of Desktop Devices such as laptop, desktop and smartphones, smart watches, etc. to obtain efficient Double-sided PCBs.

Double-sided PCB Automobile Application

Double-sided PCB for Automobile parts such as amplifiers and car dashboards gives end-consumers more satisfaction, comfort and reliability.

Double-sided PCB Consumer Electronics

From lighting systems to vending machines, PCBTok’s Double-sided PCB has contributed to consumer goods industry for years and years to come.

Double-sided PCB Medical Tools Application

PCBTok’s commitment continues in helping the healthcare sector to grow as technologies advances, opening more and more possibilities for the future.

Double-sided PCB Industrial Control Application

As the world embraces the IoT (Internet of Things), the Industrial control system has massively had a change. PCBTok is your partner for that change.

Quality Double-Sided PCB
PCBTok’s Pledge in Making Quality Double-Sided PCBs

Dual Fulfilment, Dual-Layer, Dual Quality Double-Sided PCB from PCBTok!

Get Quoted here and Call Us Today!

Double-Sided 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.

Quick Quote
  • “Hi PCBTok! I am really really glad to work with you guys. I hope you maintain your high-quality products and services. Continue to offer affordable but top-quality PCBs. Honestly, I would not look for other PCB company because I think you are the best! I hope the great service you provide stays for years so us clients would not look for other options, Great job, PCBTok!”

    Víctor Sánchez, PCB Engineer from Spain
  • “I’m going to tell you about my experience in PCBTok. We had an emergency because the first PCB manufacturer we contracted canceled. We called PCBTok and they gave us a solution to our problem. Even though it was a rush order, PCBTok manages to turnover 4100 units we ordered from them! We were very grateful! Now, we are not going back to our previous contractor and we’ll be PCBTok’s loyal customer.”

    Elliot Hodge, Purchase and Procurement Manager from Ontario, Canada.
  • “I just received the PCBs last week. (Sorry for the last review!) Me and my team just started checking them all. I just wanted you to know how happy we are about the quality of it! My team has seen almost zero to no imperfections. We are especially impressed by its excellent mechanical integrity of it. It was just perfect! I just want to say again how pleased I am with the service and the quality of the board. Talk to you soon in my next order!”

    Ralph Klaassen, Small LED Company Owner from Washington, D.C.

Double-Sided PCB: The Completed FAQ Guide

When creating a double-sided PCB, certain factors must be considered. These include thermal, electrical, mechanical, and chemical properties. Copper is used primarily for conducting strips, while tin is used for solder. Both are good conductors. Paper impregnated with resin is used for the PCB board. and Glass fiber is also used for insulation. If your PCB has a lot of holes, you may want to consider using wave soldering.

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