The commonly used materials for PCB (Printed Circuit Board) mainly include the following:
- Features: Composed of glass fiber and epoxy resin, it offers good mechanical strength, heat resistance, and insulation.
- Applications: Widely used in most electronic devices.
2. CEM-1
- Features: Made of paper base and epoxy resin, it is cost-effective but has lower mechanical strength and heat resistance compared to FR-4.
- Applications: Suitable for low-end consumer electronics.
3. CEM-3
- Features: Composed of glass fiber and epoxy resin, its performance is between FR-4 and CEM-1.
- Applications: Commonly used in mid-to-low-end electronic products.
- Features: High temperature resistance and excellent flexibility, suitable for high-frequency applications.
- Applications: Used in flexible circuit boards and high-frequency circuits.
5. Polytetrafluoroethylene (PTFE)
- Features: Excellent high-frequency performance with low dielectric loss.
- Applications: Suitable for high-frequency and microwave circuits.
- Features: Aluminum-based with excellent thermal conductivity.
- Applications: Used in LED lighting and high-power devices.
- Features: Exceptional thermal conductivity and heat resistance, but costly and fragile.
- Applications: Used in high-power and high-frequency circuits.
- Features: High glass transition temperature, offering better heat resistance.
- Applications: Suitable for multilayer boards in high-temperature environments.
- Features: Environmentally friendly, does not release toxic gases when burned.
- Applications: Used in eco-compliant electronic products.
- Features: Copper or aluminum-based with excellent thermal conductivity.
- Applications: Used in high-power electronic devices.
Summary
Different materials are suitable for various application scenarios. When selecting materials, factors such as electrical performance, mechanical strength, heat resistance, and cost need to be comprehensively considered.
