Precision PCB Fabrication, High-Frequency PCB, High-Speed PCB, Standard PCB, Multilayer PCB and PCB Assembly.
The most reliable PCB & PCBA custom service factory.
Circuit board {pcb circuit board} is also called printed circuit board.. It has been developed for more than one hundred years, and its design is mainly layout design. The main advantage of circuit board is to greatly reduce errors between wiring and assembly. Improve the level of automation and productivity.
According to the number of circuit boards, it can be divided into single-sided, double-sided, four-layer, six-layer and other multilayer circuit boards.
Because the printed circuit board is not an ordinary terminal product, the definition of the name is a bit confusing. For example, the motherboard of an individual computer is called a motherboard, and it cannot be directly called a circuit board. Although there are circuit boards on the motherboard, they are not the same, so the two are different when evaluating the industry. For example, because the integrated circuit components are mounted on the circuit board, the news media call it an IC board, but it is essentially different from a printed circuit board. We usually say that a printed circuit board refers to a bare board, that is, a circuit board without upper components.
Single panel.
In the most basic PCB part, one side of the wires is concentrated on the other side. Because the conductor only appears on one of the sides, this type of PCB is called single-sided (single-sided). Because single-sided boards have many strict restrictions on the design of the circuit (because only one side of the wires can not cross, so only early circuits can use this kind of board.
Double panel.
There are wires on both sides of the circuit board, but the wires on both sides must have proper circuit connections between the two sides. The bridge in this circuit is called via (VIA). The via fills or coats the metal holes on the PCB, which can be connected to the double line.. Since the area of the double board is twice that of the single board, the double board solves the problem of interlacing of the single board (you can pass the via hole to the other side) . It is more suitable for circuits that are more complex than single-sided circuits.
Multi-layer steel plate.
In order to increase the multi-layer boards that can be connected, use more single-sided or double-sided steel plates. Use double-sided as the inner layer, two single-sided as the outer layer or two double-sided as the inner layer, and two single-sided as the outer printed circuit Board.. Through the alternate use of positioning system and insulating adhesive materials, the conductive pattern is connected to the printed circuit board according to the design requirements to become a four-layer six-layer printed circuit board, also known as a multi-layer printed circuit board. The number of boards does not mean that several independent wiring layers are added to control the thickness of the board under special circumstances. Most motherboards are 4 to 8 layers, but the technical theory can reach nearly 100 layers of PCB boards. Most large supercomputers use multi-layer motherboards, but because this type of computer can replace super-multilayer boards with many ordinary computer clusters, it is no longer used. Since each layer of the PCB is tightly integrated, it is difficult to see the actual number, but if you look closely at the motherboard, you can still see it.
Exposure of the inner layer of the circuit board cannot have a large capacity pressure and sense of quality.
I want to say that these two departments are the same. .
If you must compare, it is still relatively good. Dust from drilling holes for a long time is harmful to your health.
The higher your salary, the higher your salary. No matter which department it is. .
In fact, wages in the PCB industry are basically timely, so there is nothing. As for these two cases, to put it simply, the compression is cleaner and there is no dust, but the work is still very dangerous and there is no technical content. Drilling can learn some skills, and it is easier to find a job after hopping. The bad thing is that noise and dust should be careful, if they are not careful, they will be hurt by the drill bit.
