The production time of each process depends on the complexity, size, number of layers and process adopted by PCB. Generally speaking, the manufacturing time of PCB double panels can range from several hours to several days.

The influence of different processes on production time is mainly reflected in the following aspects:

Linear density: Higher linear density may require more manufacturing steps and longer production time.

High impedance control: If precise impedance control is required, extra procedures and time may be required.

Special surface treatment: Some special surface treatment methods, such as ENIG or lead-free HASL gas welding, may require additional process steps and time.

Material selection: Specific material selection may require extra processing steps and time, such as flexible PCB or metal substrate.

Degree of automation: Using automation equipment and robot operation can improve production efficiency and shorten production time.

Generally speaking, PCB manufacturing with higher complexity and stricter requirements usually requires more process steps and time. Therefore, when determining the production time, it is necessary to comprehensively consider the design requirements, process complexity and equipment capacity.