Performance of Led MC PCB:
1. Thermal Dissipation
Common PCB substrates, such as FR4, CEM3 are poor conductors of thermal. If the heat of electronic equipments cannot be distributed in time, it will result in high temperature failure of electronic components. Aluminum substrates can solve this thermal dissipation problem.
2. Thermal Expansion
Aluminum substrate PCB can effectively solve the thermal dissipation problem, so that the thermal expansion and contraction problem of components on printed circuit boards with different substances can be alleviated, which improves the durability and reliability of whole machine and electronic equipments. In particular, aluminum substrate can solve the SMT (surface mount technology) thermal expansion and contraction problems.
3. Dimensional Stability
Aluminum substrate printed circuit board has apparently higher stability than the insulating material of the printed circuit board. When heated from 30 ° C to 140 ~ 150 ° C, the dimensional change of aluminum substrate is only 2.5 ~ 3.0%.
4. Other Performance
Aluminum substrate printed circuit board has shielding effect, and can alternative brittle ceramic substrate. Aluminum substrate also helps to improve the heat resistance and physical properties and reduce production costs and labor.
| 1.Base Material | FR-4 /Aluminum /CEM-1 |
| 2.Layers | 1-40 |
| 3.Finised inner/outer copper thickness | 1-6OZ |
| 4.Finished board thickness | 0.2-7.0mm |
| 5.Min hole size | Mechanical hole: 0.15mm Laser hole: 0.1mm |
| 6.Controlled Impedance | +/-5% |
| 7.Plugging vias capability | 0.2-0.8mm |
| 8.Outline profile | Rout/ V-cut/ Bridge/ Stamp hole |
| 9.Surface treatment | HASL, HASL lead free, Immersion Gold, Immersion Tin, Immersion Silver, Hard gold, Flash gold, OPS... |
Aluminum base has good thermal dissipation function. Because the LED will generate a lot of heat, the printed circuit board for the LED lamp is generally aluminum substrate.
1. Audio equipments: input and output amplifiers, balanced amplifiers, audio amplifiers, preamplifiers, power amplifiers and so on.
2. Power supply equipments: stabilizer, conditioner, DC-AC adapter and so on.
3. Communication electronic equipments: high-frequency amplifiers, filter electrical circuit.
4. Office automatic equipments: motor driver and so on.
5. Computer: power supply device, floppy disk drive, motherboard and so on.
6. Power modules: inverters, solid relays, rectifier bridges and so on.
7. Electronic control: relays, transistor base, a variety of components in the circuit.
8. Switches, microwave: radiator, semiconductor devices, thermal insulation and motor controller.
9. Industrial vehicles: ignition, voltage regulator, automatic safety control system, lighting conversion system.
10. LED Display (two modes: LED display; display with LED light source)
11. Lighting: With the promotion of energy-saving lamps, a variety of energy-saving LED lights are welcomed by the market, so the aluminum substrates for LED lights have large-scale applications.
