FR4 PCB is made of epoxy resin plus filler (Filler) and glass fiber, it has good insulation, corrosion resistance, compression, multilayer printing and so on.It is widely used in communication, automobile, medical, industrial control, security and other fields.The glass fiber board is divided into half glass fiber board and full glass fiber board according to the material.
Aluminum substrate PCB(also MCPCB) is a kind of PCB, metal based printed board, with high thermal conductivity, good heat dissipation function.The general single layer MCPCB is composed of three layers of structure, which are the circuit layer (copper foil), the insulating layer and the metal base.Used for high-end use is also designed as a double-sided plate, the structure of the circuit layer, insulation layer, aluminum, insulation layer, circuit layer.Very few are used as multi-layer layer, which can be made up of ordinary multilayer with insulating layer and aluminum base.
The application field of aluminum substrate(MCPCB):
- Audio equipment: input and output amplifier, balance amplifier, audio amplifier, preamplifier, power amplifier and so on.
- Power supply equipment: switch regulator `DC/AC converter `SW adjuster and so on.
- Communication electronic equipment: high frequency amplifier, filter circuit, electrical telegraphy.
- Office automation equipment: motor drive and so on.
- Automobile: electronic regulator, igniter,power controller and so on.
- Computer: CPU board “floppy disk drive” power supply device and so on.
- Power module: converter, solid relay, rectifier bridge and so on.
- Lamps and lanterns: with the promotion of energy-saving lamps, all kinds of energy-saving LED lamps have been greatly welcomed by the market. The aluminum substrates used for LED lamps have also begun to be widely applied.
Price pricing for FR4 PCB and aluminum substrate PCB（MCPCB）:
- The thickness of the glass fiber board FR4 is 0.2mm (ultra thin). 0.4mm, 0.6mm. 0.8mm. 1. 0mm,1.2mm. 1.6mm. 2. 3mm. 3.2mm. It is necessary to explain the impedance PCB and blind burial board, the more difficult the more expensive the price will be.
- The thinnest aluminum substrate thick can be 0.3 mm, and the thermal conductibility is 1.0W/m.k, 2.0W/m.k, 3.0W/m.k, the higher thermal conductibility, the price is higher.
- The price of the PCB board included facets,like material, thickness, process and appearance, and the number of holes. The price of the super hole or extra long board will be raised a little bit. If the shape is hard to do, it will also adjust the price.
On the whole, the price of aluminum substrate PCB(MCPCB) is more expensive, and the aluminum substrate PCB(MCPCB) can not be plating through holes.