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Aluminum pcb suppliers, High Quality&Customization
Monday, September 23rd, 2024

In the rapidly developing electronics industry, aluminum substrates, as a key electronic component carrier, have a direct impact on the reliability and stability of electronic products through their quality and performance. Choosing a reliable aluminum pcb suppliers is crucial for electronics manufacturers.

What is an aluminum substrate?

Aluminum substrate, the full name of which is aluminum-based copper clad laminate, has good heat dissipation, electrical insulation and mechanical processing performance. It is widely used in LED lighting, power modules, automotive electronics, communication equipment and other fields.

Aluminum pcb suppliers, High Quality&Customization

In these fields, aluminum substrates can effectively dissipate the heat generated by electronic components quickly, thereby ensuring the normal working temperature of electronic components and extending their service life. At the same time, the high insulation performance of aluminum substrates can prevent the occurrence of safety problems such as electrical short circuits and leakage.

In addition, the mechanical processing performance of aluminum substrates also enables it to adapt to various complex electronic equipment structure design requirements.

How to choose an aluminum pcb suppliers?

1. Conduct market research

  • Before choosing an aluminum pcb supplier, you need to conduct sufficient market research. Understand the product quality, technical strength, production capacity, service quality and price of different suppliers, and make comparisons and analyses.
  • You can get more information about suppliers through online searches, industry exhibitions, and consulting industry insiders. At the same time, you can also refer to the evaluations and recommendations of other customers to understand the reputation and credibility of the supplier.

2. On-site inspection of suppliers

  • After determining some potential suppliers, you can conduct on-site inspections. On-site inspections can give you a more intuitive understanding of the supplier’s production equipment, production processes, quality control systems, and management levels.
  • During the on-site inspection, you can communicate with the supplier’s technical personnel and management personnel to understand their technical strength and service level. At the same time, you can also view the supplier’s product samples to understand the quality and performance of the products.

3. Conduct sample testing

  • Before selecting an aluminum pcb supplier, you can ask the supplier to provide samples for testing. Sample testing can give you a more intuitive understanding of the supplier’s product quality and performance, and whether it meets your needs.
  • When conducting sample testing, you need to test according to your actual use requirements, such as heat dissipation performance, electrical insulation performance, mechanical processing performance, etc. At the same time, you also need to check the appearance quality of the sample to ensure that there are no obvious scratches, stains, and defects.

How strong is BEST Technology?

BEST Technology has a strict quality control system. From raw material procurement to production and processing to product testing, every link is strictly controlled. And BEST Technology’s products have passed many international certifications, such as ISO9001 quality management system certification, UL certification, etc.

Aluminum pcb suppliers, High Quality&Customization

BEST Technology also has a strong technical R&D team, which can continuously launch new products and technologies to meet the needs of the market and customers. For example, the high thermal conductivity aluminum substrate they developed has a heat dissipation performance that is more than 30% higher than that of traditional aluminum substrates, and has been widely praised by customers.

BEST Technology also has advanced production equipment and process technology, using automated production lines and advanced surface treatment technology to ensure product production efficiency and quality. Their production capacity is in a leading position in the industry and can ensure on-time delivery of orders.

What are the classifications of aluminum-based PCBs?

‌Aluminum-based PCB‌ (aluminum-based copper-clad laminate) is mainly divided into the following categories:

  • General-purpose aluminum-based copper-clad laminate‌: The insulation layer of this type of aluminum-based copper-clad laminate is composed of epoxy glass cloth bonding sheets, which is suitable for the manufacture of general electronic products, providing basic electrical insulation and certain heat dissipation performance.
  • ‌High heat dissipation aluminum-based copper-clad laminate‌: Its insulating layer is composed of highly thermally conductive epoxy resin or other resins, which is designed to provide better heat dissipation and is suitable for high-power electronic devices.
  • ‌Aluminum-based copper-clad laminate for high-frequency circuits‌: The insulating layer of this type of copper-clad laminate is composed of polyolefin resin or polyimide resin glass cloth bonding sheet, which is particularly suitable for electronic devices that require high-speed signal transmission and high integration.

What are the characteristics of aluminum-based PCBs?

The characteristics of aluminum-based PCBs mainly include excellent heat dissipation, dimensional stability, insulation, durability, lightness and environmental protection. ‌

Aluminum pcb suppliers, High Quality&Customization
  • ‌Excellent heat dissipation‌: Aluminum-based PCBs have excellent thermal conductivity because they use aluminum as the base material, which can effectively transfer heat from heating devices or important devices, thereby improving the overall performance of the product‌.
  • ‌Dimensional stability‌: The dimensional stability of aluminum substrates is higher. Compared with printed boards made of insulating materials, the dimensional changes of aluminum substrates are smaller, which helps to improve the reliability and durability of products‌.
  • ‌Insulation‌: Aluminum substrates have good insulation properties and can provide the electrical isolation required by electronic devices. At the same time, they are hard and can replace easily broken ceramic plates, effectively reducing the actual area required for printed circuit boards, so that products do not need to install radiators, etc., thereby improving the heat dissipation of products and improving product efficiency and reducing costs.‌
  • Durability‌: Due to its high hardness, aluminum substrates can reduce the risk of accidental damage during production, handling and daily use, and provide strength, toughness and durability that glass fiber substrates cannot provide.‌
  • ‌Lightweight‌: Aluminum substrates enhance the strength and elasticity of products without adding extra weight, which helps to reduce the overall weight of products.‌
  • Environmental protection‌: Aluminum is non-toxic and recyclable, which helps to reduce the impact of electronic waste on the environment.‌

In summary, aluminum-based PCBs provide electronic products with multiple advantages such as efficient heat dissipation, dimensional stability, excellent electrical performance, durability, lightness and environmental protection through their unique physical and chemical properties, making aluminum-based PCBs widely used in high-end electronic devices.‌

What are the application scenarios of aluminum-based PCBs?​

The application scenarios of aluminum-based PCBs are very wide, mainly including the following aspects:

  • High-power LED lighting‌: Aluminum-based PCBs can quickly and effectively transfer the heat generated by LEDs to the external environment, reduce the impact of high temperature on the life of LED chips, and improve the life and reliability of lamps.
  • ‌Power supply equipment‌: Such as switching power supplies, DC/AC converters, voltage regulators and other high-power density power modules, aluminum-based PCBs can quickly dissipate heat to ensure stable operation of the circuit.
  • ‌Audio equipment‌: The heating elements in audio devices such as audio amplifiers, power amplifiers, and preamplifiers can be well managed by aluminum-based PCBs.
  • ‌Communication electronic equipment‌: Components in communication systems such as high-frequency devices, filters, signal transmission and reception circuits, etc., use aluminum-based PCBs to improve system reliability.
  • Computers and peripherals‌: Some areas on the motherboard, power supply modules, and hardware such as graphics cards may use aluminum-based PCBs to improve the heat dissipation effect.
  • Office automation equipment‌: Motor drivers and other components that require effective heat dissipation.
  • Automotive electronics‌: Including electronic speed regulators, ignition devices, power controllers and other vehicle-mounted applications.
  • ‌Industrial control field‌: High heat density circuit boards inside industrial control equipment such as frequency converters and inverters.

Aluminum-based PCBs are widely used in many fields due to their excellent heat dissipation and electrical insulation properties, especially in situations where efficient heat dissipation and stable operation are required.

Choosing a high-quality aluminum pcb supplier is crucial for electronics manufacturers. When choosing a supplier, it is necessary to consider the key points comprehensively. Choose a suitable aluminum pcb suppliers through market research, field visits and sample testing.

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What is aluminum PCB board?
Monday, September 23rd, 2024

In today’s era of rapid technological development, the performance and reliability of electronic equipment are attracting more and more attention. As an important carrier of electronic components, aluminum pcb board plays a vital role in the field of electronics.

What is aluminum PCB?

Aluminum PCB board is a metal-based copper-clad board with good heat dissipation function. This board is mainly used for high-end applications. When designed as a double-sided board, the structure is a circuit layer, an insulating layer, an aluminum pcb board, and then an insulating layer and a circuit layer.

What is aluminum PCB board?

In rare cases, aluminum pcb board can also be designed as multi-layer boards, which are formed by laminating ordinary multi-layer boards with insulating layers and aluminum pcb board.

The unique advantage of aluminum pcb board lies in their excellent heat dissipation performance. The power device is mounted on the circuit layer on the surface. The heat generated by the device during operation is quickly transferred to the metal base layer through the insulating layer, and then the metal base layer transfers the heat away to achieve effective heat dissipation of the device.

This design enables the aluminum pcb board to minimize thermal resistance and has excellent thermal conductivity. At the same time, compared with traditional materials, aluminum pcb board can reduce volume, extend life, and improve power density and reliability while carrying higher currents.

In addition, aluminum pcb board also meet RoHS requirements, are more suitable for SMT processes, and effectively handle heat diffusion in circuit design schemes, reduce the assembly of heat sinks and other hardware, reduce costs, improve the optimal combination of power circuits and control circuits, replace fragile ceramic substrates, and obtain better mechanical durability.

How do you make aluminum PCB?

The production process of aluminum pcb board mainly includes the following steps:

  • Cutting: First, cut the aluminum pcb board material according to the design requirements.
  • Drilling: Drill holes on the aluminum pcb board according to the circuit design requirements to prepare for subsequent circuit production.
  • Dry film photo imaging: Cover the dry film on the aluminum pcb board and transfer the circuit pattern to the aluminum pcb board through photo imaging technology.
  • Board inspection: Check whether the circuit pattern on the aluminum pcb board meets the design requirements.
  • Etching: Use chemical etching to remove the part not covered by the dry film to form a circuit pattern.
  • Etching inspection: Check the etched aluminum pcb board again to ensure the accuracy of the circuit pattern.
  • ‌Green paint‌: Apply protective paint to prevent the circuit from being oxidized and corroded.
  • Character‌: Print necessary logos and information on the aluminum pcb board.
  • Green inspection‌: Check the aluminum substrate after applying protective paint to ensure quality.
  • Hinning‌: Spray tin on the aluminum substrate to improve welding performance.
  • Surface treatment‌: Treat the surface of the aluminum substrate, such as applying thermal conductive slurry to optimize heat dissipation performance.
  • ‌Punching‌: Cut the aluminum substrate as needed to form the final product shape.
  • ‌Final inspection‌: Perform final quality inspection on the finished aluminum substrate.
  • ‌Packaging and shipment‌: Pack qualified aluminum substrates and prepare for shipment.

This series of steps ensures that the production quality and performance of the aluminum substrate meet the design and use requirements. Aluminum substrates are widely used in high-end electronic devices due to their excellent heat dissipation and machining performance.

How much does aluminum PCB cost?

The cost of aluminum substrate PCB is about 230 yuan to 400 yuan per square meter. ‌

The cost of aluminum substrate PCB is affected by many factors, including board type, production process, testing cost and other additional expenses.

What is aluminum PCB board?

Aluminum substrate PCB is a metal-based copper-clad board with good heat dissipation function. This board is highly praised in certain specific application scenarios due to its efficient heat dissipation performance, but correspondingly, its cost is usually much higher than other types of PCB.

‌Board cost‌ is one of the main costs of aluminum substrate PCB. The board cost used in aluminum substrate is higher because of its special materials and manufacturing process.

‌Processing cost‌ also occupies a certain proportion. The processing process of aluminum substrate includes cutting, drilling, electroplating, lamination and other links. The equipment and process requirements of each link will affect the final cost.

‌Quality inspection cost‌ is also not to be ignored. Strict quality inspection is required during the production process, including environmental adaptability testing, electrical performance testing, etc. The number and strictness of these inspection items will also affect the production cost.

In summary, the cost of aluminum substrate PCB is affected by many factors, roughly between 230 yuan and 400 yuan per square meter, and the specific price will vary according to specific needs and production conditions.

What are the layers of aluminum PCB?

The number of layers of aluminum-based PCB can be single-sided, double-sided or multi-layer. ‌

  • ‌Single-sided aluminum substrate‌: On this type of PCB, the parts are concentrated on one side and the wires are concentrated on the other side. Since the wires only appear on one side, this PCB is called a single-sided aluminum substrate.
  • Double-sided aluminum substrate‌: There are wiring on both sides of the circuit board, but to use the wires on both sides, there must be appropriate circuit connections between the two sides.
What is aluminum PCB board?
  • Multilayer board‌: In order to increase the area that can be wired, multilayer boards use more single-sided or double-sided wiring boards. The printed circuit board that is alternately connected by the positioning system and insulating adhesive materials and the conductive patterns are interconnected according to the design requirements becomes a four-layer or six-layer printed circuit board, also known as a multilayer printed circuit board.

How thick is aluminum clad PCB?

The thickness of aluminum clad PCB usually ranges from 0.12mm to 0.18mm, with an error of ±0.01mm.

The thermal conductivity of aluminum substrate is one of the important indicators for evaluating its quality, and the thermal conductivity of aluminum substrate is generally 2.0-0.1, which means that the thermal conductivity of aluminum substrate is excellent and can effectively improve the heat dissipation efficiency of circuit boards.

In addition, the thickness of the insulation layer of aluminum substrate is usually 0.003 to 0.006 inches, which is composed of UL-certified aluminum plate cladding and insulating materials, while the base layer is a metal substrate, usually aluminum or copper.

What are the disadvantages of aluminum PCB?

The disadvantages of aluminum PCB mainly include high cost, high process difficulty, non-uniform board material, and easy problems in pressure resistance and electrical strength. ‌

  • High cost‌: The cost of aluminum PCB is relatively high, usually more expensive than other types of PCBs, and the price accounts for more than 30% of the total cost of the product.
  • High process difficulty‌: When making aluminum PCB, due to its special material and structure, the process of making double-sided boards is difficult, and during the manufacturing process, problems in pressure resistance and electrical strength are also easy to occur.
  • ‌Inconsistent board materials‌: There is no unified international standard for the material specifications of aluminum PCBs. There are multiple specifications such as CPCA industry standards, national standards and international standards, which increases the complexity of selection and use‌.
  • Problems with withstand voltage and electrical strength‌: Aluminum substrates are prone to fail to meet the withstand voltage index, which may lead to safety problems during use‌.

Why is aluminum no longer used in integrated circuits?

The main reason why aluminum is no longer used in integrated circuits is that its high resistivity and easy electromigration are gradually exposed with the increase of chip integration and the reduction of feature size, which limits its application in high-performance chips. ‌

Aluminum is one of the earliest widely used metals in semiconductor chips. Due to its good conductivity and relatively low cost, it has been widely used as an interconnect metal in early integrated circuits.

However, with the increase of chip integration and the reduction of feature size, the shortcomings of aluminum gradually emerge. In addition, aluminum wires may experience electromigration under the action of long-term current, which will cause the failure of integrated circuits.

As an alternative material, copper has lower resistivity and higher electromigration resistance than aluminum, can carry larger current in thinner metal wires, and is more reliable under high-speed current conditions.

With the continuous development of electronic technology, aluminum substrates are also constantly innovating and developing. In the future, aluminum substrates will pay more attention to product quality, performance and environmental protection, and provide more reliable support for the development of electronic equipment. BEST Technology focuses on circuit board design and production, and has many years of experience in aluminum substrate manufacturing. Choosing BEST Technology will provide you with the best service.

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