WHAT IS aluminium backed pcb?

An aluminium backed PCB (Printed Circuit Board) is a type of circuit board that has an aluminium base layer instead of the traditional fiberglass or epoxy resin base layer.

The aluminium layer provides a number of advantages over traditional PCBs, including improved thermal conductivity, better heat dissipation, and increased mechanical strength.

Andwin provide thermal pad metal core PCB for customer, email us now for you PCB quote,
Email is : mcpcb@andwinmcpcb.com


What Is aluminium backed pcb?

Aluminium backed PCBs are commonly used in high-power LED lighting applications, where the high heat generated by the LEDs can cause damage to traditional PCBs.

The aluminium layer helps to dissipate the heat more efficiently, reducing the risk of damage to the circuit board and the components mounted on it.

In addition to LED lighting applications, aluminium backed PCBs are also used in other high-heat applications, such as power electronics, automotive electronics, and aerospace applications.

They are also used in applications where the circuit board needs to be mounted to a metal chassis or heat sink for improved thermal management.

Types of aluminium backed pcb

  1. Standard Aluminum Substrate:
    This is the most commonly used type of aluminum substrate, which has a thickness of 1.6 mm and a thermal conductivity of 1.0-1.5 W/mK.
  2. High Thermal Conductivity Aluminum Substrate:
    This type of substrate has a higher thermal conductivity of 2.0-3.0 W/mK, making it suitable for high-power applications.
  3. Ultra-Thin Aluminum Substrate:
    This substrate has a thickness of 0.5-1.0 mm, making it ideal for applications where space is limited.
  4. Copper-Clad Aluminum Substrate:
    This substrate has a layer of copper on one or both sides, providing better electrical conductivity and heat dissipation.
  5. Ceramic-Clad Aluminum Substrate:
    This substrate has a layer of ceramic on top of the aluminum substrate, providing better insulation and thermal management.
  6. Flexible Aluminum Substrate:
    This substrate is flexible and can be bent or shaped to fit into tight spaces, making it ideal for applications where flexibility is required.

Aluminum backplane material

Aluminum backplane material is a type of material that is used in the manufacturing of printed circuit boards (PCBs).
It is a thin layer of aluminum that is laminated onto a substrate material, such as fiberglass or plastic.
The aluminum layer provides a conductive surface for the PCB, allowing for the transfer of electrical signals between components.
Aluminum backplane material is known for its high thermal conductivity, which makes it ideal for use in applications that require efficient heat dissipation,
such as LED lighting and power electronics. It is also lightweight and durable, making it a popular choice for aerospace and automotive applications.

Aluminum backplane material is used in a variety of applications where high thermal conductivity and efficient heat dissipation are required.
Some common uses of aluminum backplane material include:

  1. LED lighting:
    Aluminum backplanes are commonly used in LED lighting fixtures to help dissipate heat generated by the LEDs.
  2. Power electronics:
    Aluminum backplanes are used in power electronics such as power supplies and inverters to help dissipate heat generated by the components.
  3. Automotive:
    Aluminum backplanes are used in automotive applications such as engine control units (ECUs) and powertrain modules to help dissipate heat generated by the electronics.
  4. Aerospace:
    Aluminum backplanes are used in aerospace applications such as avionics and satellite systems to help dissipate heat generated by the electronics.
  5. Consumer electronics:
    Aluminum backplanes are used in consumer electronics such as smartphones and tablets to help dissipate heat generated by the components.

Applications Of aluminium backed pcb

The role of the aluminum backplane is to provide a thermally conductive and mechanically stable platform for electronic components.

It acts as a heat sink, dissipating heat generated by the components and ensuring that they operate within their safe temperature range.

The aluminum backplane also provides a sturdy base for mounting and connecting electronic components, helping to prevent damage from vibration and shock.

In addition, the aluminum backplane can provide electromagnetic shielding, protecting sensitive components from interference.

Overall, the aluminum backplane plays a crucial role in ensuring the reliable and efficient operation of electronic devices.

– General lighting
– Automotive systems
– Industrial, telecom, power supplies, and high voltage regulators types of power converters
– Photovoltaic
– Street safety lightings and streetlights
– Backlight applications

Military and aerospace are another two other sectors appropriate to utilize the benefits of metal core PCBs in their applications.

These sectors are quite sensitive and need to endure frequent thermal cycling, limits of temperature and humidity, along with repeated mechanical shocks.

The MCPCB deals according to the operational requirements only if better structural veracity and thermal conductivity enabling withstanding greater shocks.

The higher the conductivity of thermal, the better it is for the temperature distribution throughout the boards as it ensures a uniform for thermal cycling.

It also stops forming hot spots before near to the active components.
Other than these, MCPCB works great in solar panels and motion control applications.

The combination of a metal core with HDI PCB technology can create an advanced circuit technology including microwave RF PCB, flex PCB, and rigid-flex PCBs.

As the demand for PCBs is high due to the remarkable benefits, the metal core PCB is the most widely used one among all the others.

It ensures high circuitry density, thermal management, and enhanced reliability for enhanced performance.

Thermal conductivity of 2 Layers thermal Pad MPCB

Thermal pad area is 385 W/m.k

Capability of Metal core PCB

Metal core PCB Capability
ItemTechnical specification
StandardAdvanced
Board thicknessMaximum (mm)3.05.0
Panel sizeMaximum (mm)600×1170/
Layer countAluminum PCB1-8L10 L
Copper PCB1-8L10 L
Iron PCB1/
ceramics PCB1-2/
Thermal ConductivityAluminum PCB(w/m.k)0.8 to 12
Copper PCB(w/m.k)2.0-378/
ceramics PCB(w/m.k)24
DrillingMinimum drill diameter (mm)1.00.8
2 Layer ALPCB Via0.3/
Lines/spacesMinimum0.2mm/0.2mm0.15mm/0.15mm
MaterialChao Shun(CCAF)(China)Yes/
Hua Dian(China)Yes/
Chin Shi(TaiWan)Yes/
Ventec(TaiWang)Yes/
ITEQ(Tai Wan)Yes/
ShengYi(China)Yes/
Laird(US)Yes/
Bergquist(US)Yes/
Other brand per customerYes/
Final finishingHASL Lead FreeYes/
HASLYes/
ENIGYes/
ENIPIGYes/
OSPYes/
Immersion SilverYes/
Immersion Tin/YES

2 Layers direct thermal path copper core pcb application

2 Layers direct thermal path copper core pcb are designed to dissipate heat generated by high-power LEDs,
which helps to increase the lifespan of the LED and improve its performance.
The aluminium base acts as a heat sink, which absorbs and dissipates the heat generated by the LED.

The 2 Layers direct thermal path copper core pcb is made by laminating a thin layer of copper onto an copper substrate.
The copper layer is then etched to create the circuit pattern.
2 Layers direct thermal path copper core pcb for LED lighting applications are available in various sizes and thicknesses, depending on the specific requirements of the application.
They are also available in single-sided, double-sided, and multi-layered configurations.

About Andwin MCPCB

Andwin Ciurcuits MCPCB davision  set up on Feb. 2006.
Focus on  providing metal core PCB for customer
In LED field and power supply field.
We can meet all your MCPCB manufacturing needs,
From single-sided Aluminum to 
complex multilayered metal clad substrate PCBs
And from prototype through production.

The following is a list of the services and products 

We offer:
• Metal Core PCB
• Thermal PAD MCPCB
• Aluminum PCB
• Copper based PCB
• Double sided Aluminum PCB

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