
In the poster, a one dollar coin is particularly eye-catching. The thickness of the coin and the edge thickness of the millet TV are completely in tune with the sofa. Xiao Bian looked up the relevant data and found that the thickness of a dollar coin is only 1.9 mm, that is, Xiaomi TV The narrowest part of the fuselage 4 reached 1.9 mm! !

Some netizens began to question the counterfeiting of Xiaomi TV. In fact, this 1.9-mm thickness chart does not have much problem. Because the edge of Xiaomi TV has a certain degree of inclination, the thickness is almost at the narrowest point.


Aluminum circuit boards is a metal-based copper clad plate with good heat dissipation function. Generally, the single layer is composed of three-layer structure, which is a circuit layer (copper foil), an insulating layer and a metal base layer. Also used for high tech use is designed as double layers, the structure is circuit layer, insulation layer, aluminum base, insulation layer, circuit layer. A very small number of applications are multi-layer boards, which can be made of ordinary multi-layer boards combined with an insulating layer and an aluminum base.
Aluminum PCB characteristics
â— Surface Mount Technology (SMT);
â— Extremely efficient treatment of thermal diffusion in circuit design;
â— Reduce product operating temperature, increase product power density and reliability, and extend product life;
â— Reduce product size and reduce hardware and assembly costs;
â— Replace the fragile ceramic substrate for better mechanical durability.
Aluminum PCB use:
â— Audio equipment
Input, output amplifiers, balanced amplifiers, audio amplifiers, preamplifiers, power amplifiers, etc.
â— Power supply equipment
Switching regulator, DC/AC converter, SW regulator, etc.
â— Communication electronic equipment
High frequency amplifier, filtering appliance, reporting circuit, etc.
â— Office automation equipment
Motor drive, etc.
â— Automotive
Electronic regulator, ligniter, power controller, etc.
â— Computer
CPU board, floppy disk drive, power supply unit, etc.
â— Power module
Inverter, solid relay, rectifier bridge and so on.
â— LED lighting
With the promotion of energy-saving lamps, various energy-saving and beautiful LED lamps have been well received by the market, and aluminum PCB used for LED lamps have also begun to be applied on a large scale.
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