What is aluminum clad circuit board?
An aluminum clad circuit board (ACB) is a type of printed circuit board (PCB) that has a layer of aluminum on the top and bottom surfaces.
This aluminum layer serves as a heat sink, dissipating heat generated by the components on the board. ACBs are commonly used in high-power applications
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Email is : mcpcb@andwinmcpcb.com
What Is aluminum clad circuit board?
such as LED lighting, power supplies, and motor controllers, where thermal management is critical. The aluminum layer also provides mechanical strength and protection to the circuitry on the board.
ACBs are typically made by laminating a thin layer of copper onto an aluminum substrate, followed by etching the copper layer to create the circuit pattern.
Types of aluminum clad circuit board
There are several types of aluminum clad circuit boards (ACBs) available in the market, each designed for specific applications. Here are some of the common types of ACBs:
- Single-sided aluminum clad circuit board:
This type of ACB has a single layer of copper on one side of the aluminum substrate. - Double-sided aluminum clad circuit board:
This type of ACB has copper layers on both sides of the aluminum substrate, allowing for more complex circuitry. - Multilayer aluminum clad circuit board:
This type of ACB has multiple layers of copper and insulation sandwiched between the aluminum substrate, allowing for even more complex circuitry. - High-frequency aluminum clad circuit board:
This type of ACB is designed for high-frequency applications, such as radio frequency (RF) and microwave circuits. - High-temperature aluminum clad circuit board:
This type of ACB is designed to withstand high temperatures and is commonly used in automotive and aerospace applications. - Metal core aluminum clad circuit board:
This type of ACB has a metal core, such as copper or steel, sandwiched between the aluminum substrate and the copper layer, providing even better thermal management.
the role of aluminum clad circuit board
Aluminum clad circuit boards (ACBs) play a crucial role in the electronics industry. These circuit boards are made of a thin layer of aluminum,
which is bonded to a non-conductive substrate, such as fiberglass or ceramic. The aluminum layer acts as a heat sink, dissipating heat generated by electronic components on the board.
The primary role of ACBs is to provide thermal management for high-power electronic devices. These devices generate a lot of heat,
which can damage the components or reduce their performance. ACBs help to dissipate this heat, preventing damage and ensuring optimal performance.
ACBs are commonly used in applications such as LED lighting, power supplies, motor controllers, and audio amplifiers.
They are also used in high-frequency circuits, where the aluminum layer acts as a ground plane and helps to reduce electromagnetic interference.
In addition to their thermal management capabilities, ACBs offer several other benefits. They are lightweight, durable, and resistant to corrosion.
They also provide good electrical insulation and can be easily manufactured using standard PCB fabrication processes.
Overall, aluminum clad circuit boards play a critical role in ensuring the reliability and performance of high-power electronic devices.
where is the aluminum clad circuit board used？
Aluminum clad circuit boards are commonly used in high-power LED lighting, power supplies, automotive electronics,
and other applications where high thermal conductivity is required. They are also used in radio frequency (RF) and microwave applications, such as antennas and amplifiers.
Applications Of aluminum pcb
The technology of the metal core PCB is ideal for its applications that generate immense heat and have difficulty being cool down using conventional fans or other cooling methods.
MCPCBs play an integral role to achieve a high illumination with fewer requirements than LEDs require.
The fabrication process of metal core PCB is helpful for the applications
Since the MCPCBs are most often used in LED technologies for producing a certain illumination the light-emitting diodes releases the heat in applications like:
– 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 | |||
| Item | Technical specification | ||
| Standard | Advanced | ||
| Board thickness | Maximum (mm) | 3.0 | 5.0 |
| Panel size | Maximum (mm) | 600×1170 | / |
| Layer count | Aluminum PCB | 1-8L | 10 L |
| Copper PCB | 1-8L | 10 L | |
| Iron PCB | 1 | / | |
| ceramics PCB | 1-2 | / | |
| Thermal Conductivity | Aluminum PCB(w/m.k) | 0.8 to 12 | |
| Copper PCB(w/m.k) | 2.0-378 | / | |
| ceramics PCB(w/m.k) | 24 | ||
| Drilling | Minimum drill diameter (mm) | 1.0 | 0.8 |
| 2 Layer ALPCB Via | 0.3 | / | |
| Lines/spaces | Minimum | 0.2mm/0.2mm | 0.15mm/0.15mm |
| Material | Chao 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 customer | Yes | / | |
| Final finishing | HASL Lead Free | Yes | / |
| HASL | Yes | / | |
| ENIG | Yes | / | |
| ENIPIG | Yes | / | |
| OSP | Yes | / | |
| Immersion Silver | Yes | / | |
| 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
Other metal core pcb your may interesting
