How to identify the PCB circuit board is good or bad?
With the high-speed development of mobile phone,
electronics, communications industry, the PCB circuit board industry has grown up
rapidly. However, facing fierce market price competition, more and more
manufacturers monopolize the market by low prices for enhancing core
competitiveness, though the PCB board material costs tend to be rising. Then we
may doubt if the ultra-low prices are achieved by reducing the costs of materials
and fabrication.But things can be solved if we can distinguish PCB board by ourselves. Would you like to tell me any tips?