Printed circuit boards or PCBs are essential elements in the electronics world. They are used in more straightforward gadgets such as toys to complex devices such as military equipment.
Nevertheless, standard PCBs usually are used in low-power and low-voltage devices. This is to help them work properly. But what kind of PCB is used on devices that require more power and voltage? The answer is heavy copper PCB, in there, you will learn what heavy copper PCB is, the benefits of heavy copper PCB, the manufacturing process of heavy copper PCB, and much more.
What is heavy copper PCB?
A heavy copper PCB is a printed circuit board with a copper thickness of 3oz per sq. ft. But what makes a circuit board categorized as a heavy copper PCB is the thickness of its plating.
Copper thickness is improved by producing heavy copper PCB through plated holes and sidewalls. From example, if a PCB has two ounces of copper per sq. ft. thickness, that is a standard PCB.
But if the PCB has more than 3oz of copper, it is classified as heavy copper PCB. At the same time, a heavy copper PCB is different from an extreme copper PCB. An extreme copper PCB features 20oz to 200oz per sq. ft.
With the heavy copper PCB, the thickness helps the board conduct more current. The boards have more substantial mechanical power in the connector sites than the standard PCBs.
The benefits of heavy copper PCB
Heavy copper PCB comes with many benefits. Due to its unique features, it has become a perfect option for high-end applications. Here are the main benefits of heavy copper PCB.
1.Good thermal distribution
Due to their copper-plated vias, heavy copper PCBs provide good thermal distribution. Hence, they are used in applications that require high frequency and high speed. The PCB can be used in harsh temperatures.
2.Great mechanical strength
Another benefit of heavy copper PCB is its excellent mechanical strength. This makes it more durable and robust.
3.Excellent conductor
A heavy copper PCB is an excellent conductor. Hence, the PCB is used to make various electronics due to this benefit. It is possible to link several boards together, and they can quickly transfer current.
4.Have an excellent dissipation factor
Heavy copper PCBs are perfect for significant elements with a high loss of power. This is because they have an excellent dissipation factor. They prevent overheating form happening in electrical systems.
Difference between standard PCB and heavy copper PCB
Standard PCBs are quickly produced with copper etching and plating processes. The boards are plated to increase copper thickness to traces and planes. Also, the amount of copper used in standard PCBs is 1oz.
On the other hand, there are different manufacturing methods for heavy copper PCBs and the amount of copper used is more than 3oz.
With the standard printed circuit boards, cnc cutting, copper etching and plating methods are utilized. But heavy copper PCBs are obtained through various etching and step plating methods.
Standard PCBs perform lighter duties while heavy copper printed circuit boards perform heavy tasks. Also, the standard ones conduct a lower current while the heavy PCBs conduct a heavy current.
Applications of heavy copper PCB
Heavy copper PCBs come with numerous benefits over standard PCBs. In addition, they offer outstanding features making them perfect for specific applications.
For instance, heavy copper PCBs are ideal for defense and military applications, medical devices, and many other areas. Hence, the demand for heavy copper PCBs is continuously increasing.
Some of the applications of heavy copper PCBs are:
Solar power converters / Rail traction systems / Nuclear power industries / Automotive industries / UPS systems / Protective relays / Torque controls / Safety and signal systems / Welding equipment / Power line motors / Military equipment.
Global Well Electronic Inc. is a professional PCB solution supplier from Shenzhen, China, integrating PCB circuit board production and processing, STM processing and mounting, PCBA OEM, component purchasing, PCB/PCBA custom design-production- A comprehensive PCB circuit board company with one-stop turnkey service of processing-assembly-finished products. The company has a strong supply chain system, a professional and efficient collaborative team, a sound and complete quality control system, and the business philosophy of honesty and trustworthiness, customer first, and presents the products to everyone with low prices, reliable quality, high-quality service and after-sales service. client.
We provide total PCB solutions from PCB design to final mass production, including PCB fabrication and assembly, component sourcing, solder paste stencils, conformal coatings, and more. Serving the global electronics field, including industrial control, medical electronics, military equipment, power communication, automotive electronics, AI artificial intelligence, smart home and other industries.
Our factory located in Shenzhen, and have almost 300 employees, more than 30 production lines include SMT, DIP, automatic welding, aging test and assembly. We have SMT machines from Japan and Korea, automatic solder paste printing machines, solder paste inspection machine(SPI)12 temperature zone reflow soldering machine, AOI detector, X-RAY detector, wave soldering machine, EM PCB ,dispenser,laser print machine etc., Different line configurations can meet requirements from small sample order to bulk shipment.
Our company has obtained ISO 9001 quality system certification and ISO 14001 system certification. With multi-testingprocedures, our products carry out the quality system standard strictly.
1. PCB fabrication.
2. Turnkey PCBA: PCB+components sourcing+SMD and through-hole assembly
3. PCB clone, PCB reverse engineering.
PCB or PCBA Files Requests:
1. Gerber files of the bare PCB board
2. BOM (Bill of material) for assembly (please kindly advise us if there is any acceptablecomponents substitution.)
3. Testing Guide & Test Fixtures if necessary
4. Programming files & Programming tool if necessary
5. Schematic if necessary
| Order Quantity | 1-300,000,30000 Square Meter/Square Meters per Month module electronic board |
| Layer | 1,2,4,6,upto 40 layer |
| Material | FR-4,glass epoxy,FR4 High Tg,Rohs compliant,Aluminum,Rogers,etc |
| PCB type | Rigid,flexible,rigid-flexible |
| Shape | Any shape: Rectangular,round,slots,cutouts,complex,irregular |
| Max PCB dimensions | 20inch*20inch or 500mm*500mm |
| Thickness | 0.2~4.0mm, Flex 0.01~0.25'' |
| Thickness tolerance | ± 10% |
| Copper thickness | 0.5-4 oz |
| Copper thickness tolerance | ± 0.25oz |
| Surface finish | HASL,Nickle,Imm Gold,Imm Tin,Imm Silver,OSP etc |
| Solder mask | Green, red,white,yellow,blue,black, Double-sided |
| Silk screen | White,yellow,black,or negative, Double-sided or single-sided |
| Silk screen min line width | 0.006'' or 0.15mm |
| Min drill hole diameter | 0.01'',0.25mm.or 10 mil |
| Min trace/gap | 0.075mm or 3mil |
| PCB cutting | Shear,V-score,tab-routed |
| Turnkey PCBA | PCB+components sourcing+assembly+package |
| Assembly details | SMT and Thru-hole, ISO lines |
| Lead Time | Prototype: 15 work days. Mass order: 20~25 work days |
| Testing on products | Flying Probe Test, X-ray Inspection, AOI Test, functional test |
| Quantity | Min quantity: 1pcs. Prototype, small order, mass order, all OK |
| Files we need | PCB: Gerber files(CAM, PCB, PCBDOC) |
| Components: Bill of Materials(BOM list) | |
| Assembly: Pick-N-Place file | |
| PCB panel Size | Min size: 0.25*0.25 inches(6*6mm) |
| Max size: 20*20 inches(500*500mm) | |
| PCB Solder Type | Water Soluble Solder Paste, RoHS lead free |
| Components details | Passive Down to 0201 size |
| BGA and VFBGA | |
| Leadless Chip Carriers/CSP | |
| Double-sided SMT Assembly | |
| Fine Pitch to 0.8mils | |
| BGA Repair and Reball | |
| Part Removal and Replacement | |
| Component package | Cut Tape,Tube,Reels,Loose Parts |
| PCBA process |
Drilling-----Exposure-----Plating-----Etaching Stripping-----Punching-----Electrical Testing-----SMT-----Wave Soldering-----Assembling-----ICT-----Function Testing-----Temperature - Humidity Testing |
Packing details:
PCBA are packed into plastic bags. Plastic bags are put into small carton. 4 small carton into a big carton.
A big carton: 35×32×40 cm size.
Shipping Express:
FedEx, DHL, UPS, TNT, EMS, private lines, etc.
Air freight, Sea shipping
If you need help on PCB layout, you can contact us and send the board to us. We also provide Reverse Engineering Service.
We have been providing PCB Manufacture for many years in China,and we have rich experience in product production and product assembly.We believe our team will provide high quality and low cost service for you.
Thank you very much for all your support .
Best Regareds.
1, What service could you provide?
We could provide PCB design,PCBA design,PCB printing,PCB assembly,Components procurement,Reverse-Engineer.
2, What is needed for PCB & PCBA quotation?
For PCB: Quantity, Gerber file and technical requirements(material,size, surface finish treatment, copper thickness,board thickness).
For PCBA: PCB information, BOM,Testing documents.
3, How to keep our product information and design file secret ?
We could sign NDA associate by customers side local law for protecting customers confidential business
4, What are the main products of your PCB/PCBA services?
Automotive, Medical, Industry Control, IOT, Smart Home, security equipment,Military, Aerospace.
5, What is your minimum order quantity (MOQ)?
Our MOQ is 1 PCS, sample and mass production all can support.
6, Are you factory?
Our factory is located in No.26,Meiyuan 3rd Road,Intercontinental Industrial Park,Luoyang Town,Boluo County,Huizhou, Guangdong, China.
7.How can we guarantee you receive an good quality product?
For PCB, we will use Flying Probe Test, E-test etc. for it.
For PCBA, we need you to offer us a method or test fixture for the function test.Before that, our inspectors will use microscope and X-ray to check the IC footwelding or bad solder etc.
8.What payment terms do we accept?
For sample order or small batch, we suggest you to use Paypal and Western Union.For mass production batch, we suggest you to use T/T.
