The difference and application of aluminum substrate and glass fiber board
1. Fiberglass board (FR4, single-sided, double-sided, multilayer PCB circuit board, impedance board, blind buried via board), suitable for computers, mobile phones and other electronic digital products.
There are many ways to call fiberglass board, let’s first understand it together; FR-4 is also known as fiberglass board; fiberglass board; FR4 reinforcement board; FR-4 epoxy resin board; flame retardant insulation board; epoxy Board, FR4 light board; epoxy glass cloth board; circuit board drilling backing board, generally used for soft package base layer, and then covered with fabric and leather to make beautiful wall and ceiling decoration. The application is very wide. It has the characteristics of sound absorption, sound insulation, heat insulation, environmental protection, and flame retardant.
Glass fiber board is a composite material made of epoxy resin, filler (Filler) and glass fiber.
The main technical characteristics and application of FR4 light board: stable electrical insulation performance, good flatness, smooth surface, no pits, thickness tolerance exceeding the standard, suitable for products with high-performance electronic insulation requirements, such as FPC reinforcement board, resistance to tin furnace High temperature plates, carbon diaphragms, precision cruisers, PCB test frames, electrical (electrical) equipment insulation partitions, insulation backing plates, transformer insulation parts, motor insulation parts, deflection coil terminal boards, electronic switch insulation boards, etc.
Fiberglass board is most widely used in conventional electrical, electronic and digital products because of its good material properties. The price is higher than that of paper and semi-glass fiber, and the specific price varies with different product requirements. Fiberglass board is also widely used in digital electronic products.
Due to the special advantages of fiberglass board, it is widely used in electronic manufacturers. The board of fiberglass board has V grooves, stamp holes, bridges and other types of boarding methods.
Second, aluminum substrate (single-sided aluminum substrate, double-sided aluminum substrate), aluminum substrate mainly has excellent heat dissipation performance, suitable for LED technology, the bottom plate is aluminum.
Aluminum substrate is a metal-based copper clad laminate with good heat dissipation function. Generally, a single-sided board consists of a three-layer structure, which is a circuit layer (copper foil), an insulating layer and a metal base layer. For high-end use, it is also designed as a double-sided board, and the structure is circuit layer, insulating layer, aluminum base, insulating layer, and circuit layer. Very few applications are multi-layer boards, which can be made by bonding ordinary multi-layer boards with insulating layers and aluminum bases.
The aluminum substrate is a kind of PCB. The aluminum substrate is a metal-based printed board with high thermal conductivity. It is generally used in products that require heat dissipation such as solar energy and LED lights. However, the material of the circuit board is aluminum alloy. In the past, our general circuit board The material used is glass fiber, but because the LED heats up, the circuit board for LED lamps is generally an aluminum substrate, which can conduct heat quickly. The circuit board for other equipment or electrical appliances is still a fiberglass board!
Most of the LED aluminum substrates are generally used in LED energy-saving lamps, and LED TVs will also be used, mainly for objects that require heat conduction, because the larger the LED current, the brighter the light, but it is afraid of high temperature and excessive temperature. Outside of the lamp beads, there is light decay and so on.
The main uses of aluminum substrates and LED aluminum substrates:
1. Audio equipment: input and output amplifiers, balanced amplifiers, audio amplifiers, preamplifiers, power amplifiers, etc.
2. Power supply equipment: switching regulator, DC/AC converter, SW regulator, etc.
3. Communication and electronic equipment: high-frequency amplifier `filter electrical` transmission circuit.
4. Office automation equipment: motor drives, etc.
5. Automobile: electronic regulator, igniter, power controller, etc.
6. Computer: CPU board, floppy disk drive, power supply device, etc.
7. Power module: converter `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.