Six main category of PCB, OSP PCB Shelf time The article explains that PCBs (Printed Circuit Boards) are fundamental components in the electronics industry and part of a cyclical market. The PCB industry in China, particularly in Shenzhen, has rapidly developed from producing single-sided to multilayer boards. PCBs are categorized into single-sided, double-sided, and multilayer types, as well as rigid and flexible types. The article also discusses the shelf life of multilayer PCBs, emphasizing the importance of temperature and humidity control, particularly for PCBs with OSP, ENIG, and HASL surface treatments, which must be managed according to IPC guidelines.
Read More 
