PCB is an abbreviation, its full name means =printed circuit board; Chinese name is printed circuit board, also known as printed circuit board, is an important electronic component, is the support of electronic components, is the electrical connection of electronic components Carrier. PCB does not have any components, only dense lines and positioning holes. The conductive track and the copper plate etched from the laminated to the non-conductive substrate etches several other features of the mechanical support member. Since it is made by electronic printing, it is called a "printed" circuit board. It can also be said. Bare board."
PCBA Printed Circuit Board + Assembly is short, say PCBA is empty after the PCB on the assembly plate + SMT placement member, and then the entire assembly through DIP plug machining process.
Note: Both SMT and DIP are ways to integrate parts on the PCB. The main difference is that SMT does not need to drill holes in the PCB. The component leads of the SMT chip are soldered directly to one side of the pad, and its pins do not pass through the other side, that is, the holes. The components of the DIP are usually very long. The socket needs to be soldered through the other side to complete the soldering of the solder. The PIN pin of the component is inserted into the hole that has been drilled, which is called DIP.
If the board has SMT and DIP processes, you need to perform the DIP process after the SMT process.
From the above introduction, it can be known that PCBA refers to a processing flow, which can also be understood as a finished circuit board, that is to say, the PCB board needs to perform the SMT+DIP process to complete the PCBA. The PCB refers to an empty printed circuit board with no parts on it. In general: PCBA is a finished board; PCB is a bare board.
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