Aluminum base plate (metal base heat sink (including aluminum base plate, copper base plate, iron base plate)) is a low-alloyed Al-Mg-Si series high plastic alloy plate, which has good thermal conductivity, electrical insulation performance and mechanical processing performance. Compared with the traditional FR-4, the aluminum substrate uses the same thickness and the same line width. The aluminum substrate can carry higher current. The aluminum substrate can withstand voltage up to 4500V and the thermal conductivity is greater than 2.0. In the industry, the aluminum substrate is used as the Lord.

1. Advantages of aluminum substrate:

1. Use surface mount technology (SMT);

2. Extremely effective treatment of thermal diffusion in the circuit design scheme;

3. Reduce product operating temperature, improve product power density and reliability, and extend product service life;

4. Reduce product volume, reduce hardware and assembly costs;

5. Replace the fragile ceramic substrate to obtain better mechanical durability.

Second, the 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 equipment

Switching regulator, DC/AC converter, SW regulator, etc.

3. Communication electronic equipment

The high-frequency amplifier `filtering appliance` transmission circuit.

4. Office automation equipment

Motor drivers, etc.

5. Car

Electronic regulator, igniter, power controller, etc.

6. Computer

CPU board, floppy disk drive, power supply, etc.

7. Power module

Inverter, solid relay, rectifier bridge, etc.

8. Lamps and lanterns

With the promotion and promotion of energy-saving lamps, various energy-saving and brilliant LED lamps have become popular in the market, and the aluminum substrates used in LED lamps have also begun to be applied on a large scale.