PCBA

PCB (Printed circuit boards), is an important electronic component, the support body of electronic components and are providers of electrical connections and electronic components. Its development has a history of more than 100 years;  Its design is mainly layout design;  The main advantage of using circuit board is to greatly reduce wiring and assembly errors, improve the level of automation and production labor rate.
PCB has the following functions in various electronic equipment， 
1. Provide mechanical support for fixed and assembly of integrated circuits and other electronic components.  

2. Wiring and electrical connection (signal transmission) or electrical insulation between various electronic components such as integrated circuits.  Provide the required electrical characteristics.  

3. Provide welding resistance graphics for automatic assembly, and identify characters and graphics for component installation, inspection and maintenance.