Change Language
Maximize Your Performance with Large PCB Products
One of the most crucial parts of product development to get right is PCB design.
With Large-sized circuit boards, this is a major issue.
Unlike regular boards, there are many surface areas to consider, as well as many mounted components.
We are the best in the industry because we provide complete PCB assembly services in addition to PCB of all sizes.
You can message us any time if you need help in Large PCBs.
Large PCB Items by a Trustworthy Provider
You can trust us to carry out your Large PCB order because:
- If you request it, we will perform a complete CAM review before manufacturing.
- If you require a Certificate of Conformity (COC) report, we provide one.
- You can also ask for product samples from microsections.
- We have over 12 years of industry experience
- We have UL certification. It indicates that if you do business in the US or Canada, this is very beneficial.
Due to our extended manufacturing capabilities, we can provide lower price rates for your orders of Large PCB items.
Large PCB By Feature
When new devices need to be released, PCB Assembly, whether large, small, or medium-scale is something we can do.
Whether using standard FR4, high Tg FR4, or those produced by Rogers, we work can make large-sized FR4 PCBs.
Large-sized Multilayer PCBs can occasionally become complicated due to signal integrity and stack-up requirements.
Large boards are occasionally required by Power Supplies due to their high current demands. Some plants use fossil fuels, others use geothermal.
Prototyping is the main application for large blank PCBs. These are used for PCB design and are sometimes referred to as protoboards or perfboards.
Some clients are interested in creating new components for existing devices, with prototyping, when making use of large-sized boards.
What is a Large PCB?
By definition, a Large PCB is a specially sized board.
The majority of circuit boards are standard sizes, which is the cause.
The size of a large PCB will exceed 12 inches or 30.48 cm.
Sometimes, the terms “Long PCB” and “Large PCB” are used interchangeably.
This makes sense given that you are talking about boards that are larger than usual.
A capable PCB manufacturer is able to create boards up to 1.5 meters (59 inches) long.
Why Use a Large PCB?
A large PCB is used for a variety of purposes due to its wide range of uses.
Large PCBs are also used because customers can benefit from them.
The power, telecom, and computer industries are among those that procure Large PCBs for use in their corresponding large-scale applications.
In Large PCB assembly, you need to factor in whether you’re creating a prototype or expanding the scope of your device’s performance.
You might need thick copper in your large PCB, even extra thick ones that are weighing up to 20 oz, to add extra strength.
Large PCB Applications and Usage
The variety of applications for large-sized circuit boards is only constrained by the availability of plus-sized electronics. As a result, the list, which includes but is not limited to:
- Industrial equipment includes things like plant machinery
- Engine controllers like the components inside of cars.
- Components of medical devices for scanning technology.
- LED light displays in malls
- Monitors for use in public spaces and monitors for use in stadiums.
- Big entertainment devices for the home.
- Large-scale computers used for data storage
- Electronics for monitoring airport surveillance systems
- Subways and train electronic equipment
Choosing a Professional Manufacturer for Large PCBs
Because we offer customer service around-the-clock, we got your back.
What’s more? Our transaction is more than just buying a Large PCB from us.
We always want to improve your experience, so you can rely on honest customer service.
As a full-stop supplier of all PCB and PCB-related items, we use cutting-edge software to design your board, if you want it.
There are vast differences in customer orders, but you can always rely on us for steadfastness.
Call PCBTok right away!
Large PCB Fabrication
The entire process consists of several steps inside a PCB manufacturing house
It is similar to how other circuit boards are typically put together in terms of the production of these Large-sized PCBs. The scale of board is the only distinction.
- Soldering takes place after applying solder paste to bare circuit boards.
- There are two types of soldering: reflow soldering and wave soldering.
- Soldering machines are used for both soldering procedures.
- After the soldering is complete, the PCB needs to be inspected.
- The components on the large board are then mounted, if this product is for PCB assembly.
We must talk about PCB testing because that is the only way to determine whether a board is faulty.
Large boards cannot afford flaws because they will significantly slow down equipment operation.
Take a look at the list of PCB tests used in a reputable PCB company:
- Automated test – often referred to as AOI
- Flying Probe Test
- Several In-Circuit tests
- Functional tests such as checks for contamination
- The Microsection Test
Large PCB Production Details As Following Up
- Production Facility
- PCB Capabilities
- Shipping Method
- Payment Methods
- Send Us Inquiry
| 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 A/W |
1mil Deviation of Master A/W |
||||||
| 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.
Related Products
When designing large PCBs, you should be aware of the following:
- Impedance Control –It is a problem that is related to designing high-frequency PCBs.
- PCB Routing — If these are high-speed applications, you must be aware of signal interference.
- Carrying power currents on PCB traces are a consideration.
- Through-hole drilling is more practical, but microvia may result in greater energy savings.
Lastly, large boards may need more financial investment in your part.
The largest size of PCB can be up to 59 inches.
What comes with size are special considerations in the PCB schematic.
You can rely on professional PCB software like Altium, KiCad and Eagle.
If you opt for paid subscription, it will give you an easier time, especially if you need to collaborate on your designs.
You board can be a wholly Rigid board, or it can have PCB connectors.
In this case, Polyimide PCB can be a great option for better thermal performance.