PCB News - What PCB can Shenzhen circuit board factory do

What PCB can Shenzhen circuit board factory do

Anyone who opens the electronic device can see the printed circuit board, also known as the PCB. They are thin, flat, and usually green rectangular substrates covered with a labyrinth of thin copper wires and silver pads, and are the heart and soul of most electronic devices. Understanding circuit boards requires understanding what they are, the different types of circuit boards that exist, the components used on these circuit boards, and the PCB manufacturing method or process. The starting point is to understand how printed circuit boards have evolved. In the 1950s, printed circuit boards replaced the point-to-point structure in most electronic products. The point-to-point structure is to weld the wires to the terminal block and the board printed with the metal ring. In point-to-point equipment, small electronic components and their wires are directly welded to the terminals, and wires of large equipment (such as transformers) are also directly welded to the terminals. As you might imagine, this system involves chaotic tangles of wires. Since every wire and part must be ferruled and soldered to the correct part on the terminal board, it is also difficult to use in mass production.
Another circuit board manufacturing method that was popular in the 1960s was winding. The electronic components are mounted on an insulating board and connected to each other by wires, which are wound several times around the wires or socket pins.
Entering the PCB (Shenzhen Circuit Board Factory), the PCB almost eliminates all wiring used in point-to-point construction and winding, thereby promoting mass production. The PCB manufacturing process can be automated to a large extent, thereby reducing the risk of engineering defects that may cause prototype failures or circuit board failures. PCB manufacturers can enter specifications into software, which can perform extensive design checks to ensure optimal performance even before the circuit board is manufactured. Automated production also means lower costs than other construction methods.
This article studies the types of printed circuit boards, the components used on the boards, the different PCB manufacturing methods, and the considerations for PCB manufacturing.
PCB type
There are several types of circuit boards in use today. Printed circuit boards (Shenzhen Circuit Board Factory) are characterized by their construction methods, including single-sided, double-sided and multilayer board configurations.
Single-sided circuit board
Single-sided PCB (Shenzhen Circuit Board Factory) has only one substrate. One side of the substrate is covered with a thin metal layer. Generally, copper is used due to its high conductivity. This layer creates conductive paths for power and signals between various electronic components. Next is a protective solder mask, and a screen-printed coating can be added to the last layer to mark various parts of the circuit board. Single-sided PCBs are used for simple electronic products and are lower in cost than other types of PCBs.

Double-sided circuit board
Double-sided printed circuit boards are more commonly used than single-sided printed circuit boards because double-sided circuit boards allow the introduction of more complex circuits. Like single-sided PCBs (Shenzhen Circuit Board Factory), they have only one substrate, but both sides are covered with conductive metal and circuit components. Then use through-hole mounting or surface mounting to connect the components.
Through-hole technology is sometimes referred to as "through-hole", and it uses thin wires called leads that pass through holes on the circuit board to connect components. Each end of the lead is soldered to the exact component or circuit. This can be done manually or by an automatic plug-in installation machine. Through-hole mounting continues to be used for circuits that must withstand more stress, because the combination of leads through the circuit board and soldering creates a stronger connection. Through-hole PCBs are commonly used in military and aerospace products.
Surface mounting does not require drilling holes in the board. The components are mounted directly on the PCB. This method uses smaller leads or no leads at all. Surface mount printed circuit boards are more popular than through holes because of the much lower handling and processing costs. Components can be soldered to the board in batches or by hand.
Multilayer PCB
The multi-layer PCB circuit board (Shenzhen Circuit Board Factory) has a multi-layer substrate, and the insulating material separates each layer. They use the same technology as double-sided PCBs to connect components on multilayer circuit boards through through-holes or surface mounting. PCB multi-layer circuit boards usually have four to ten layers, but if the product requires it, more layers can be added. They are usually used in computers, servers, and are often used for special purposes, such as medical PCBs, industrial PCBs, security PCBs, power supply PCBs, automotive PCBs, etc.