The Differences between of Aluminum PCB and Fiberglass Board

The aluminum PCB is a kind of metal-based copper-clad laminate with good heat dissipation function. Generally, a single-sided aluminum PCB is composed of a three layers structure, which is a circuit layer, an insulating layer, and a metal base layer. Aluminum PCB is commonly used in LED lighting products: It has a front side and back side, the white side is weldable LED pin. And the other side presents aluminum color, which is usually coated with a thermal grease and then in contact with the thermally conductive portion.

Glass fiber board alias: Fiberglass board (FR-4). This is a common material for rigid PCBs. It is made of fiberglass material and high heat resistance composite material and contains no harmful asbestos ingredients. It has high mechanical properties and dielectric properties, good heat resistance and moisture resistance, and processability. It also has the characteristics of sound absorption, sound insulation, heat insulation, environmental protection and flame retardant. In addition, it can be wrapped with fabric, leather, etc. on the outside to decorate the beautiful wall and ceiling.

The difference between aluminum PCB and glass fiber board:

The heat dissipation of the aluminum PCB is significantly better than that of the standard FR4 board. The dielectric thermal conductivity of an aluminum substrate is usually 5 to 10 times that of conventional epoxy glass, and its thickness is only one tenth of the thickness of conventional epoxy glass. And its heat transfer index is more efficient than traditional rigid PCBs, and lower copper weights can be used.

Aluminum PCBs and glass fiber boards are all PCBs. Compared with the FR4 glass fiber board, the LED aluminum PCB differs in that the aluminum-based material used has better thermal conductivity than the FR4 material. FR4 glass fiber circuit board is a traditional electronic circuit board, which is widely used in communications, automotive, medical and other fields due to its good insulation, corrosion resistance, pressure resistance and multilayer printing.

In terms of price, the aluminum substrate is more expensive than the glass fiber board. Customers can purchase quality boards as needed. HOYOGO can provide not only these two types of boards, but also automotive boards, rigid-flex PCBs, HDI, PCBA services, etc. The stable quality, the reasonable price and the attentive service have been satisfying thenumerous clients' high defined needs. Let us help you win more orders.