What is The Difference Between PCB Bare Board and PCBA

For many friends who do not know much about the circuit board industry, they always think that PCB is PCBA in their consciousness, there is no difference between them, in fact, the difference between PCB bare board and PCBA is very big, this chapter is mainly based on this topic, do a detailed text answer!

The difference between PCB bare board and PCBA:

a. PCB does not have any components

b. PCBA is the manufacturer after getting the PCB as a raw material, through SMT or plug-in processing on the PCB board welding assembly required electronic components, such as IC, resistance, capacitor, crystal oscillator, transformer and other electronic components, after reflow furnace high temperature heating, will form a mechanical connection between components and PCB board, thus forming PCBA.

1. PCB features:

a. High wiring density, small size, light weight, conducive to the miniaturization of electronic equipment.

b. Because of the repeatability and consistency of the graphics, it reduces the wiring and assembly errors, and saves the maintenance, debugging and inspection time of the equipment.

c. It is conducive to mechanized and automated production, improving labor productivity and reducing the cost of electronic equipment.

d. The design can be standardized, conducive to interchangeability.

PCB is short for Printed Circuit Board, translated into Chinese is called printed circuit board, because it is produced by electronic printing, it is called "printed" circuit board. PCB is an important electronic component in the electronics industry, is the support body of electronic components, and is the carrier of electrical connection of electronic components. PCB has been extremely widely used in the manufacturing of electronic products, the reason why it can be widely used

2. PCBA Features:

PCBA is short for Printed Circuit Board +Assembly, that is to say, PCBA is through the PCB empty board SMT, and then through the DIP plug-in of the entire process.

Note: SMT and DIP are both ways of integrating parts on the PCB board, the main difference is that SMT does not require drilling on the PCB, and in DIP requires inserting the PIN pin of the part into the already drilled hole.

SMT(Surface Mounted Technology) surface mounting technology, the main use of the mounting machine is to mount some micro parts to the PCB board, its production process is: PCB board positioning, printing solder paste, mounting machine, back welding furnace and made of inspection.

DIP is the "plug-in", that is, the insertion of parts on the PCB version, which is some parts that are larger in size and are not suitable for mounting technology when integrating parts in the form of plug-ins. Its main production process is: adhesive, plug-in, inspection, over wave soldering, brushing and finished inspection.