PCB is a printed circuit board, also known as a printed circuit board. It is the carrier for interconnecting electronic components and the backbone of the platform supporting electronic components. As the most basic part of electronic products, PCB has been widely used in consumer electronics, computer , communication tools, medical equipment and other fields.

PCB can be divided into single-sided, double-sided and multi-layer boards. Common multi-layer boards are generally 4-layer boards or 6-layer boards. Complex multi-layer boards can reach dozens of layers. PCB boards have high density and high reliability. , designability, manufacturability, testability, and assembly characteristics, which is why PCB boards can be widely used.

PCBA is to assemble various electronic devices on the circuit board through the surface packaging process. The PCBA process is the entire process of the PCB empty board being loaded by SMT, and then going through the DIP plug-in. In short, PCBA is a piece of PCB.

SMT placement is the process of placing parts on the PCB board using a high-speed placement machine. The SMT placement process can be divided into: PCB cleaning, solder paste printing, online SPI inspection, parts placement, reflow soldering, online AOI inspection and other processes .

DIP plug-in means that large capacitors and resistors cannot be mounted by machine, but only by manual plug-in. The main production process is: adhesive backing, plug-in, inspection, wave soldering, foot cutting and manufacturing inspection.

The difference between PCB and PCBA:

PCB board refers to an empty printed circuit board with no components on it, while PCBA generally refers to a processing process, which can also be understood as a finished circuit board. Only after the processes on the PCB board are completed can it be counted as PCBA. In short: PCBA is the finished board; PCB is the bare board.

Kuaifa Zhizao can not only provide PCB design, PCB manufacturing, DFMA services, but also provide one-stop PCBA manufacturing services such as SMT chip processing, component procurement, assembly testing, etc. You only need to provide gerbe files, and the rest will be to deliver to us.

The above is the difference between PCB and PCBA, I hope to help everyone.