copper-based circuit board, Copper core PCBs Custom special process

• What is Copper core PCBs?
• Structure of Copper core PCBs
• Characteristics of Copper Core PCB
• copper-based circuit board
• copper-based circuit board Custom special process
• About copper core pcb factory
• Copper Core PCB Design
• copper core PCB application

What is Copper core PCBs?

Copper core circuit boards are a type of metal core PCB. With their layered design using a copper base, these PCBs offer superior thermal conductivity.

copper core PCB
The substrate material of copper core PCB is red copper (pure copper). It serves the copper core PCB and products in thermal dissipation, shielding, grounding, and mechanical support.
At the one-stop PCB manufacturer PCBONLINE, the normal thickness of the copper substrate is 0.2mm to 0.6mm.
The copper thickness of the circuits ranges from 1oz to 10oz (35um to 350um).
The surface finishes of copper core PCB can be OSP, immersion gold, silver plating, and HASL.

Structure of Copper core PCBs

Base layer
Copper core PCBs use prepreg or another high thermal conductivity insulation to improve heat transfer.
Thermal insulation layer
Copper core PCBs use prepreg or another high thermal conductivity insulation to improve heat transfer.
Circuit layer
Copper foil makes up the circuit layer, and these often range from 1 to 10 ounces.
Dielectric layer

An added dielectric layer absorbs the heat that travels through the circuit layer and sends it to the copper substrate for dispersion.

Characteristics of Copper Core PCB

Copper core PCB is worth the most expensive MCPCB because of its great thermal conductivity, manufacturing possibility, and structural stability.
The thermal dissipation effect ofcopper PCB is several times better than aluminum PCB and dozens of times better than iron-based PCB.
The PCB vias of copper core PCB can be plated with copper to be conductive and be in the same network to achieve good grounding for the signals.
The copper base is solderable and allows structural metal parts to solder on the PCB in box-build assembly.
The PCB pads of copper core PCB can be processed to be bumps, which can directly solder flip chips to achieve good grounding and thermal dissipation.
Copper core PCBs have a smaller warpage than aluminum PCBs because of their elastic modulus difference. (Copper has an elastic modulus of 121,000MPa, while aluminum has 72,000MPa.)
Copper core PCB has a smaller CTE (coefficient of thermal expansion) than aluminum PCB and thus better structural stability.
For thermoelectric separation copper core PCB, the PCB pads for components that generate heat are made into bumps, and the heat conducts from the component base to the PCB's copper base directly. Its thermal conductivity can reach 398W/mK, which is the same as copper itself.

thermoelectric separation copper core PCB
Besides, copper core PCB can inlay or be inlaid in other materials, for example, ceramic PCB can inlay the copper base, or the FR4 PCB can inlay copper.

copper-based circuit board

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copper-based circuit board Custom special process

Custom special process catering to the diverse needs of our clients.
With 17 years of dedicated experience in MCPCB and a 30000-square-meter factory, we have served more than 1700+ cients, capable of handling snal to lar ge-scale production andassembly, catering to the d iverse needs of our clients.


Custom special process, Tailored Solutions
COB MCPCB and Sinkpad PCB are both available.  professionals & technical
We focus on high Mixed  products, customized metal core printed circuit boards, and reliable Quality and quick Delivery.
We pride ourselves on delivering quality and efficiency at every step of the process.      You just need to do is providing us with your file, so we will fulfill your requirement successfully.
Quality ensurance
With our advanced Technology &  Equipment and our sustained invest in testing equipment, As a supplier holding UL、ISO13485、ISO9000 and Rohs, we have confidence to provide you with high quality products.
Global Supplier
As a distinguished global supplier, employing a secure global delivery network and our efficient internal procedures, we ensure prompt delivery of precisely what you require.       Dissatisfied with the ordinary, we keep updated to meet with the clients' required delivery speed and even ahead of schedule.
As your trusted global supplier, we stand ready to delivere with precision, speed, and an unwavering commitment to excellence.

About copper core pcb factory

Founded in 2006, focusing on electronics & circuit board industry, we provide a one-stop service from designing, DFM, and fabrication of all types of Metal core PCB (from 1-layer, 2L,Double sided, Multi-layer to Sinkpad PCB), to components purchasing, Metal core circuit board assembly and box assembly, we also provide suitable solution for our customers that help to save time & money of them, and then become the most reliable supplier of them.

We will reply to you immediately when receive you r RFQ,and give you the bestquotation within 12 hou rs.Meanwhile,our professional engineering will giv e youdesign support and technical service speciali zed for your flexible

Copper Core PCB Design

Because the copper base is thick, the minimum drill bits for copper core PCB must be 0.4mm.

The PCB circuit thickness determines the trace width/space. The larger the copper thickness, the larger the trace width/space.

As most copper-core PCBs are high-current PCB boards, you can read high-current PCB design tips that shine a light on copper-core PCB design.

copper core PCB application

The applications of copper core PCB include LED lighting, automotive electronic parts, power modules, high-frequency military communication/radar/detectors, power supplies, etc.
We classify the applications of copper core PCB below.

1.Automotive: vehicle headlights, ignitors, and power controllers.
2.LED lighting: fluorescent lamps, street lamps, downlights, wall washers, mining lamps, stage lights, and ship lights.
3.Power modules: converters, solid relays, and rectifier bridges.
4.Power supplies: switching regulators and DC/AC converters.
5.Audio equipment: I/O amplifiers, balanced amplifiers, audio amplifiers, preamplifiers, and power amplifiers.
6.Communication electronics: high-frequency amplifiers, filters, and transmitters.
7.Office and home appliances: motor drivers in fans, range hoods, washing machines, and whirlpools.
8.Computers: CPU boards, floppy disk drives, and power supply devices.

Copper, Copper core PCBs, copper-based circuit board,