Hello, readers, welcome to the new post. Today we will discuss Introduction to Copper Core PCB. The metal core board is known as a thermal board or metallic-backed board. It is a board type that uses metal materials for a base to spread the heat of the board. Thick metals such as aluminum or copper are provided on a single side of the board. The metal core can be configured on the middle, backside, or any side of the board.
The objective of ore made with MCPCB is to dissipate heat through spreading distance from components connected on board. The metal base of the metallic core board is an alternative to Fr4 or CEM3 boards.
There are 3 types of metal-core boards: aluminum PCB, copper-core PCB, and iron-based PCB. That is used for high-power and high-frequency PCB design. As copper core board comes with good dissipating features for heat at the time of circuit working. Here we will take a detailed look at copper core PCB and also learn how you can get copper core PCB from JLCPCB. So let’s get started.
What is copper-based PCB?
- Copper-core PCB is a type of metal-core PCB that uses copper as the core material. It is a high-cost type of metal core board and offers good heat dissipation as compared to other metallic types, such as iron core and aluminum PCB.
- It is a high-frequency design, and applications with high and low temperatures exist that are used for communication devices.
- The high needed for current-carrying copper-based board layers, so thick copper for 35um to 280um layers is made. The use of thermally conductively insulating layers has a good effect on copper-based boards.
- Thermal conductivity is normally made with the use of aluminum oxide and silicon powder, as well as polymers filled with epoxy resin.
- The main advantages of a copper core board are low thermal resistance with 0.15, good viscoplastic properties, and thermal aging control.
- Copper substrate comes with good features for copper core board that include heat dissipating, shielding, and grounding.
- For all these featrus, it comes with high thermal conductivity and applications for mechanical techniques such as drilling, punching, and cutting.
copper-based PCB types
- The main types of copper-core PCB are listed here.
- Immersion gold copper-based PCB
- Silver-plating copper-based PCB
- Hot air soldering leveling (HASL) copper-based PCB
- Anti-oxidation copper-based PCB
Difference between Aluminum and Copper Core PCB
- These two boards are similar in some features and functions but have some differences. That are listed here.
Cost of Metal
- It is an important factor for design and board manufacturing. Copper is expensive as compared to aluminum since it is a rare structure. For applications where low-cost products need aluminum board, it is used as compared to the copper board.
Thermal Conductivity
- Thermal conductivity is the rate at which heat is transferred in metals; aluminum offers high-speed heat transfer as compared to copper. Copper boards are made at high temperatures and high power functions.
Electrical Conductivity
- Aluminum and copper are conductors, but the accurate amount of metals is different for these two metals. For conduction, copper is better than aluminum and used for PCB designs.
Electrical Resistance
- Resistance is a good feature for board design since it comes with good impact for working and component stability connected on board. The density of copper is higher as compared to aluminum, which causes less resistance as compared to aluminum, so copper is best for circuits where high current and low resistance are used.
JLCPCB Direct Heatsink Copper-Cored PCBs
- JLCPCB is a PCB supplier that offers the PCB base services with quality and low cost. JLCPCB was established in 2006. With more than 15 years of continuous innovation and growth based on customer needs, they have grown to become the world’s famous PCB manufacturer, offering high-speed production of highly reliable and low-cost PCBs and making the best user experience in the industry.
- JLCPCB Direct Heatsink Copper-Cored PCB has been officially launched! As you already know, JLCPCB launched Aluminum PCB in 2021, which got praise from users.
- After one year, JLCPCB is introducing Direct Heatsink Copper PCB that offers good heat transfer and is best for high-power components. The objective of JLCPCB is to offer a cost-effective solution to their users for copper PCB with features for giving the best benefits to every customer.
- The direct heatsink specification of JLCPCB offers good cooling for high-power features such as COB LEDs and switching regulators. Here you can see that it is done by making heatsink pads from copper board bases so that heat transfer is not affected by the existence of any insulation.
- With that heat transfer on traditional board having metallic core passes through insulating layers with a thermal conductivity as compared to copper.
- These charges do not come with more steps since the flexible board and multiple layers do not get from every manufacturer. Normal aluminum and copper core boards exist since they are made in the same way as single layers. FR-4 PCB
- Direct heatsink pads can be rectangular or polygonal, with about 1 mm wide on any side. They were not connected with regular pads and traces, but traces needed to be used for making all with the direct heatsink on a copper base.
- Plating is not done since holes in FR4 layers are not plated. The minimum drill is one millimeter, and the minimum slot width is 1.6 mm. OSP surface treatment is used. Panels are accepted, but only V-notch is available.
How to Order JLCPCB Copper PCB
- Through a selection of direct heatsink copper for the base, materials must be connected with part of copper that has to be made with direct heatsink connected with the base.
- It is recommended to choose the correct production line before manufacturing can make sure that directions are accurately understood.
- To make technology innovation easy, JLCPCB has high-quality services. JLCPCB board provides more latest boars for users demands in the world. For a good platform for smart board manufacturing, JLCPCB is always on the way!
Copper-based PCB Advantages
- Then aluminum board Copper core board offers good thermal conductivity—about double that of aluminum. High conductivity resulted in high heat dissipation.
- base copper brass can be plated through holes, but the aluminum base cannot. Copper bases on boards can be etched, and proper design gets through the process that is best for component connections on projects directly for offering good effects for grounding and heat dissipation.
- Copper comes with modules of elasticity of about 121000 MPA and aluminum comes with 72000 MPa, and the shrinkage features of copper-based boards are less than aluminum.
Copper-based PCB Features
- It can withstand thermal aging.
- It provides good viscoplastic features.
- Its mechanical strength is high.
- Non-magnetic behavior shown
- It has good stability.
Rules of Copper Core PCB Design
- The diameter for minimum drilling is about 0.4mm due to the thickness of the copper base. The copper foil thickness can direct the line width and spacing; if copper is thicker, it will require a wider line width and a larger least spacing.
Thermoelectric separation copper-based PCB
-
- For the circuit layer, circuit parts are not like the thermal layer of the substrate, and a part of the thermal layer is connected with parts of lamp heat dissipation to get the best heat dissipation and less thermal resistance.
Read also
- How to Reduce the PCB Board Size for Projects
- Learn How PCB Circuit Board Soldering Guide for Beginners
- How to Manufactured Large PCB Board
- How to Get High Quality and Low Cost PCB Board
- Difference between PCB and Breadboard
That is all about the Introduction to Copper Core PCB all details has explained. If you have any queries ask here. Thanks for reading have a nice day
