Aluminum-based pcb circuit board is the most widely used circuit board in the pcb board industry, and it is also the cheapest metal circuit board with good thermal conductivity. Aluminum-based pcb circuit board is the most cost-effective circuit board among many circuit boards with heat dissipation performance. The aluminum-based pcb circuit board is divided into three layers, the upper layer is the wiring layer, the middle layer is the thermal insulation layer, and the lower layer is the metal aluminum base layer, which has the function of heat dissipation.

FR-4 fiberglass board occupies a dominant position in epoxy fiberglass board, and has the absolute advantage of high flame retardancy. FR-4 fiberglass board is composed of high temperature resistant composite material and glass fiber, and has the characteristics of high dielectric properties, heat resistance, moisture resistance and so on.

Comparison of advantages and disadvantages of aluminum-based pcb circuit board and FR-4 glass fiber board

1. Comparison of sheet properties

FR-4 glass fiber board has high heat resistance, but poor heat dissipation performance; aluminum-based pcb circuit board has high heat dissipation; the performance of the two is different, the protagonists are also different, and the application fields are also very different.

2. Product price comparison

The price of FR-4 fiberglass board varies greatly due to different plates and structures; for example, the price gap between single and double-sided boards and multi-layer boards is relatively large. However, the performance of aluminum-based pcb board is superior, so the overall price will be higher than that of glass steel plate.

3. Comparison of production process

The circuit layer of the aluminum-based pcb circuit board is only one layer, while the glass fiber board can have single-sided, double-sided, and multi-layer circuits, and the circuits are connected by vias. The complexity of the two processes is different, and the production process is also very different.