Understand the difference between PCB and PCBA

I believe that many people think that the PCB circuit board is not unfamiliar, may be the daily learning life of the enterprise can often be heard, but the PCBA may not need to understand, and even confused with PCB. So nothing is PCB? How did PCBA develop and evolve? pcb stackup calculator What is the difference between PCB and PCBA? Here is our specific problem to understand.

About PCB

PCB is the abbreviation of printed circuit board, translated into Chinese is called printed circuit board. Because it is made of electronic printing, it is called a "printed" circuit board. 1 oz vs 2 oz PCB is an important electronic component in the electronics industry, is the support of electronic components, and is the carrier of electrical connection of electronic components. PCB has been widely used in the manufacture of electronic products, and its unique characteristics can be summarized as follows:

1, wiring system high density, small size, light weight, conducive to the miniaturization of enterprise electronic technology equipment.

2, Due to the repeatability and consistency of the graphics, the wiring and assembly errors are reduced, and the equipment maintenance, debugging and testing time is saved.

3, is conducive to mechanization, automated production, improve labor productivity, reduce the cost of electronic equipment.

4, the design can be standardized, conducive to interchangeability.

About PCBA

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

Note :SMT and DIP are both ways of integrating devices on the PCB. The main difference is that SMT does not require drilling in the PCB, whereas in DIP, the PIN of the part needs to be inserted into the drilling hole.

Surface mount technology (sMT) is a kind of surface mount technology machine to mount small parts on the printed circuit board, its production process includes: printed circuit board positioning, printing paste, paste, overflow furnace and manufacturing inspection.

DIP is "plug-in", that is, parts are inserted on the PCB, and when some parts are large and not suitable for the installation process, they are integrated in the form of plug-ins. Its main production processes are: gluing, plug-in, inspection, wave soldering, printing and manufacturing inspection.

The difference between PCB and PCBA

As can be seen from the above introduction, PCBA refers to the general process, and can also be understood as the finished circuit board, that is, the process after the completion of the PCB board can be counted as PCBA. A PCB is an empty printed circuit board with no parts on it.

In general, PCBA is a finished board; The PCB is a bare board.