The ultimate guide to the PCB manufacturing process includes the following steps:
1. Making inner circuits: Making inner circuits is the first step in PCB manufacturing, including board cutting, pre-processing, lamination, exposure, development, etching, film removal and punching.
2. Making the outer circuit: The production of the outer circuit is based on the inner circuit and is completed through processes such as secondary copper plating, lamination, exposure, development, etching and film removal.
3. Solder mask production: Solder mask production is completed through processes such as solder mask ink printing, exposure and development after the outer circuit is completed.
4. Character production: Character production is completed through screen printing, baking and other processes after the solder mask production is completed.
5. Welding components: After all production is completed, the PCB board assembly is completed by welding components.
The above are the basic steps of the PCB manufacturing process, but actual operations may need to be adjusted according to different needs and situations. At the same time, attention must be paid to complying with safe operating procedures to ensure production safety.