Question

What are the four substrate materials commonly used by circuit board manufacturers give?

Answer 1

The four substrate materials commonly used by circuit board manufacturers generally include FR-4, CEM-1, CEM-3, and metal substrates.

These substrate materials have different characteristics and application ranges. For example, FR-4 has excellent mechanical strength, heat resistance and corrosion resistance; CEM-1 and CEM-3 are relatively cheaper and suitable for some products with higher economic requirements. ; The metal substrate has excellent thermal conductivity and machining performance.

When choosing circuit board materials, you need to judge the advantages and disadvantages of various materials based on actual needs and choose the materials that are most suitable for your products.

Answer 2

The substrate is the main part of the circuit board and the basis of the circuit board material. Common substrate materials include FR-4, FR-2, CEM-1, CEM-3, etc. Among them, FR-4 is the most commonly used material, which has good insulation properties, mechanical strength and heat resistance. FR-2 is suitable for some low-voltage, low-frequency simple circuits. CEM-1 and CEM-3 materials are relatively cheaper and suitable for some products with higher economic requirements.

Answer 3

Common substrate materials include FR-4, FR-2, CEM-1, CEM-3, etc. Among them, FR-4 is the most commonly used material, which has good insulation properties, mechanical strength and heat resistance. FR-2 is suitable for some low-voltage, low-frequency simple circuits.

Answer 4

The various substrate materials of PCB circuit boards are briefly introduced as follows:
FR-4 sheet: FR-4 sheet is an epoxy sheet with high mechanical and dielectric properties, good heat resistance and moisture resistance, and good machinability.
Aluminum substrate: Aluminum substrate is a metal-based copper-clad laminate with good heat dissipation function. Generally, a single panel consists of a three-layer structure, which are circuit layer (copper foil), insulation layer and metal base layer. Aluminum substrates are commonly used in LED lighting products. There are two sides, the white side is for welding LED pins, and the other side shows the natural color of aluminum. Generally, thermal paste is applied and then comes into contact with the heat-conducting part.
FPC board: FPC board is a highly reliable and excellent flexible printed circuit board made of polyimide or polyester film as the base material. It has high wiring density, light weight, thin thickness, Good bending characteristics. Used in high-end products such as mobile phones and hard drives.