PCB has many kinds of name, can be called circuit board, circuit board, printed circuit board and so on, is an important electronic components, PCB as a bare board, was used to mount electronic components, so that the electronic components and circuit board connected to achieve a certain function.
PCBA is the abbreviation of Printed Circuit Board Assembly, but in foreign countries, generally translated as PCB assembly (PCB Assembly). PCB is a PCB bare board after SMT mounting, DIP insertion and PCBA testing, quality control assembly process, the formation of a finished product, referred to as PCBA. PCBA can realize the designer's design function, almost all electronic products, such as smart home, AR, VR, medical equipment, etc., all need to use PCBA board.