difference between pcb and pcba
difference between pcb and pcba
About PCB
PCB is the abbreviation of Printed Circuit Board, which is translated into Chinese as printed circuit board. Because it is made by electronic printing, it is called “printed” circuit board. PCB is an important electronic component in the electronics industry. It is the support of electronic components and the carrier of electrical connection of electronic components. PCB has been widely used in the production and manufacturing of electronic products. The reason why it can be widely used is summarized as follows:
1. High wiring density, small size, light weight, which is conducive to the miniaturization of electronic equipment.
2. Because the graphics are repetitive and consistent, wiring and assembly errors are reduced, saving equipment maintenance, debugging and inspection time.
3. It is conducive to mechanized and automated production, improves labor productivity and reduces the cost of electronic equipment.
4. The design can be standardized and interchangeable.
About PCBA
PCBA is the abbreviation of Printed Circuit Board + Assembly, which means that PCBA is the entire process of PCB blank board SMT mounting and then DIP plug-in.
Note: Both SMT and DIP are ways to integrate parts on PCB boards. The main difference is that SMT does not require drilling holes on PCBs, while DIP requires the pins of parts to be inserted into the holes that have been drilled.
SMT (Surface Mounted Technology) is a surface mounting technology that mainly uses mounting machines to mount some tiny parts on PCB boards. Its production process is: PCB board positioning, solder paste printing, mounting by mounting machines, reflow ovens, and finished inspection.
DIP means “plug-in”, which means inserting parts on PCB boards. This is a way to integrate parts in the form of plug-ins when some parts are large in size and not suitable for mounting technology. Its main production process is: back glue, plug-in, inspection, wave soldering, brushing, and finished inspection.
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The difference and connection between PCB and PCBA
PCB is what we often call circuit boards, and the production and processing of PCB engineering drawings into circuit boards is called PCB. After SMT (chip placement) on a blank
PCB board, the electronic devices required by the board are pasted, which is called PCBA. The board with electronic components has been pasted. As long as the case is installed and the program is adjusted, a complete electronic device is manufactured.
According to statistics, many large and small electronic equipment manufacturers, in order to save the inconvenience of contacting the patch manufacturer after purchasing the PCB, have to go home.
More and more electronic equipment manufacturers will choose to let the PCB manufacturer process the patch at the same time as the PCB is produced, or let the patch manufacturer purchase the PCB on behalf of them.
In these two ways, the electronic equipment manufacturer can directly install and use the circuit board in hand to produce the finished product. Many manufacturers who only produce PCBs have no reason to process PCBA on behalf of them, which will harm customers who need the same generation of processing.
Such customers choose manufacturers who have the ability to add them at the same time, or choose patch factories and let the patch factories purchase PCBs on their behalf. Many people may ask why patch factories can purchase PCBs, and why PCB factories do not contact patch factories
It is a relatively simple matter for patch manufacturers to purchase PCBs. They only need to ask customers to provide production drawings and production processes. In addition, the PCB price is very transparent and convenient to purchase. However, PCB manufacturers are not familiar with various electronic products and prices. They cannot contact patch factories to carry out patch production, and can only focus on the production of PCB.
Since 2009, PCB manufacturers have gradually renovated factories and improved PCBA processing production lines while producing PCBs. This one-stop method has been recognized by many electronic equipment manufacturers.
This method of simultaneous processing has both advantages and disadvantages. The profit space of OEM manufacturers has expanded, but the risks are also increasing. The main reason is that when purchasing electronic components for customers, the electronic components required for each electronic device are different.
Even for the same product, the design drawings are different and the electronic components used are different. If the model of the electronic components purchased is wrong, the board and the electronic components will be damaged at the same time.
The direct financial losses are also difficult to estimate. The increase in capital investment is also inevitable. Under the pressure of market competition, simultaneous processing of PCB and PCBA is also inevitable.
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PCB Prototyping and Its Prospects
PCB prototyping refers to the trial production of printed circuit boards before mass production. It is mainly used for the process of small-batch trial production to the factory after electronic engineers have designed the circuit and completed the PCB, which is PCB prototyping.
There is generally no specific boundary for the production quantity of PCB prototyping. Generally, engineers call it PCB prototyping before the product design is confirmed and tested.
PCB prototyping is mainly used for the process of small-batch trial production to the factory after electronic engineers have designed the circuit and completed the PCB, which is PCB prototyping.
And with the continuous development of science and technology in my country, PCB prototyping is also in continuous development. PCB prototyping with good quality and low price still has great room for development in the future.
Due to the continuous efforts and hard research and development of Chinese scientific researchers for PCB prototyping, my country’s PCB prototyping has entered an era of high development and has been widely recognized by the PCB industry around the world.
The more obvious manifestation is that many electronic manufacturers at home and abroad have begun to use PCB prototyping boards made in China as components of their electronic products.
Moreover, the PCB proofing produced in my country is still spreading to various places and various industries, and is gaining wider use. Therefore, users do not have to worry about the future development of PCB proofing, because PCB proofing, as a basic component, has been widely used in more and more industries.
At present, domestic professional PCB proofing has made significant progress in product structure. Since the 19th century, various electronic products have been continuously introduced, such as mobile phones, computers and other electronic products have gradually become indispensable objects in people’s lives, and PCB proofing is the basis of these electronic products, providing core operating conditions for these electronic products.
With the continuous development of electronic products, PCB proofing is also constantly improving. There is no need to say much about the future development of electronic products, because electronic products are not only a necessity in modern society, but also meet the needs of modern social development, so it must be prosperous. As the main core component of electronic products, PCB proofing will certainly continue to develop with electronic products.
At present, the future development trend of the PCB proofing industry should be a very impressive industry. Because with the continuous advancement of current technology, many industries need to use PCB proofing, and high-quality PCB proofing has appeared in a market where supply exceeds demand.
And we can also clearly know from the above content that the development of PCB proofing will surely become more and more prosperous in the future.
