Effekterna av materialval på flexibla PCB

Mångfalden i material påverkar flexibilitet och hög temperaturmotstånd för flexibla PCB; PI and PET are common in flexible PCBs and provide unique performance support. For example, polyimide (PI) is a common material for flexible PCBs. It not only has excellent heat resistance (can withstand temperatures up to 400℃), but also has chemical stability and excellent mechanical flexibility. On the other hand, polyester (PET) is more affordable and is particularly suitable for applications in low-temperature environments, such as consumer electronic devices, but it should be noted that its heat resistance is relatively weak. In addition, liquid crystal polymer (LCP) is designed for high-frequency and high-speed applications, providing excellent dielectric properties and smooth surface treatment. In terms of copper foil, flexible PCBs usually use calendered copper (RA Koppar), som har bättre duktilitet än elektrolytisk koppar (ED -koppar), vilket säkerställer att det inte är lätt att bryta under böjning . Det noggranna valet av dessa material ger nyckelstöd för design och tillverkning av flexibla PCB .}