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Printing Circuit Board

Printing Circuit Board

PCB is the abbreviation of printed circuit board. It's call that  "printed circuit board." PCB is an important electronic component in the electronic industry. It is the support of electronic components and the carrier of electrical connection of electronic components.

About PCB

PCB is an important support ,and carrier of electrical interconnection of electronic components.

PCB has been widely use in the production of electronic products,There are four characteristics:
1. High wiring density, small size, light weight, conducive to the miniaturization of electronic equipment.
2. The graph of the circuit diagram is repetitive and consistent, which reduces the wiring and assembly errors and saves the time of equipment maintenance, debugging and inspection.
3. It is conducive to mechanized and automatic production, improves labor productivity and reduces the cost of electronic equipment.
4. The design can do standardized, which is convenient for interchangeability.

PCB is the frame ,and connecting line for the installation ,of electrical components, including single-sided, double-sided, multi-layered and multi-faceted.

Can be high density

Over the years, the high density of printed circuit board has been able to develop with the improvement of integrated circuit integration and the progress of installation technology

High reliability

We through a series of technical means such as inspection, test and aging test, PCB can work reliably for a long time (generally 20 years), and can  use for longer when the circuit board is not aging.Brush anti-corrosion glue on the surface of PCB can keep it use longer.


The requirements of PCB performance (electrical, physical, chemical, mechanical, etc.) can do realized through design standardization, standardization, etc. In this way, the design time is short and the efficiency is high


PCB adopts modern management, which can realize standardization, scale (quantity) and automatic production, so as to ensure the consistency of product quality.


Established a relatively complete test method, test standard, through a variety of test equipment and instruments to detect and identify the PCB product qualification and service life


PCB products are not only convenient for standardized assembly of various components, but also for automatic and large-scale mass production. PCB can do assembled as a whole with other components.



PCB products and various components,can assembled in standardized design, and large-scale production, and these components can also standardized. If the system fails, it can do replaced quickly, conveniently and flexibly, and the work of the system can be recovered quickly.

About PCBA

PCBA is the abbreviation of printed circuit board and assembly, that is to say, PCBA is the whole process of PCB SMT, then dip plug-in.
Note: both SMT and dip are ways to integrate parts on PCB board. The main difference is that SMT does not need to drill holes on PCB board, and in dip, the pin pin pin of parts needs to  inserted into the drilled holes.
With a kind of surface mounting technology (SMT), some small parts can be mounted on PCB board by SMT.
Dip is "plug-in", that is to insert parts on PCB board. It is a kind of plug-in integrated parts when some parts are large in size and not suitable for mounting technology. Its main production processes are: back glue, plug-in, inspection, wave soldering, plate brushing and finished inspection

The difference between PCB and PCBA

 PCB refers to an empty printed circuit board with no parts on it.As can do seen from the above introduction.

PCB is bare board. PCBA is a processing flow, so called completed circuit board. That is to say, PCBA is to complete all processes on PCB. 



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