Those who are eager to learn, who deal with the auxiliary revision of film negatives (similar to those taken in hospitals) and the drilling procedures, just find someone to take you, and you won't learn anything in special training courses, at best, just introduce them. The salary is not so good, a little better than that of ordinary workers. It won't exceed 2500 at first, and it usually takes 12 hours to work. The most experienced is 3500, unless you are a supervisor and manager, you won't exceed this figure (at the current level, you won't dare to say it in the future). I am a bastard in PCB industry. There are many training points in Fuyong and Shajing in Baoan, Shenzhen, and the tuition of PCB 1800 yuan is more expensive than fpc.