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中文Aluminum substrate (metal-based heat sink board, including aluminum substrate, copper substrate, iron substrate) is a low-alloy Al-Mg-Si high-plasticity alloy plate. It has good thermal conductivity, electrical insulation performance and mechanical processing performance. Compared with the traditional FR-4, the aluminum substrate has the same thickness and line width. The aluminum substrate can carry higher current. The aluminum substrate has a voltage resistance of up to 4500V and a thermal conductivity of more than 2.0. In the industry, the aluminum substrate is the most popular. host.
Advantages of Aluminum Substrate:
1. Use of surface mount technology (SMT);
2. Extremely effective treatment of thermal diffusion in circuit design;
3. Reduce product operating temperature, improve product power density and reliability, and extend product life;
4. Reduce product size, hardware and assembly costs;
5. Replace fragile ceramic substrates and achieve better mechanical durability.
Use of aluminum substrate: power hybrid IC (HIC).
1. Audio equipment
Input and output amplifiers, balanced amplifiers, audio amplifiers, preamplifiers, power amplifiers, etc.
2. Power Supply Equipment
Switching regulators, DC/AC converters, SW regulators, etc.
3. Communication electronic equipment
High-frequency amplifier, “filter electrical equipment” transmission circuit.
4. Office automation equipment
Motor drives, etc.
5. Automobile
Electronic regulator, ignition, power controller, etc.
6. Computers
CPU board, floppy drive, power supply, etc.
7. Power module
Converter, solid state relay, rectifier bridge, etc.
8. Lamps and Lighting
With the promotion of energy-saving lamps, various energy-saving and colorful LED lamps have become popular in the market, and aluminum substrates used in LED lamps have also begun to be used on a large scale.
