The complete PCB we envision is usually a regular rectangular shape. While most designs are indeed rectangular, many require irregularly shaped boards, which tend to be less easy to design.

In a circuit with resistance, inductance, and capacitance, the obstruction to alternating current is called impedance. Impedance is commonly represented by Z, is a complex number, the real part is called the resistance, the imaginary part is called the reactance, where the capacitor in the circuit to the AC obstruction is called the capacitive reactance, the inductance in the circuit to the AC obstruction is called the inductive reactance, capacitance and inductance in the circuit to the AC caused by the obstruction is called the reactance.

The price of PCB is a lot of buyers have been very confused things, many people place orders online will also question how these prices are calculated, let's talk about the components of PCB price.

PCB board through single-sided - double-sided multi-layer development, and the proportion of multi-layer circuit board is increasing year by year. Multilayer board performance to high precision fine large and small two extreme development. Laminating is an important process in the manufacture of multilayer board, and the control of laminating quality becomes more and more important in the manufacture of multilayer board.

With the rapid development of high technology, electronic products closely related to the public are constantly updated, and the public also needs high performance, small size, and more functional electronic products, which puts forward new requirements for the circuit board. Double-sided circuit board is thus born, due to the wide application of double-sided circuit board, the printed circuit board manufacturing is also light, thin, short and small development.

Although the whole machine is very complex, but learn to understand is not a high thing, through continuous learning and practice, you can learn to read. In fact, when looking at the picture, you can use a variety of ways to look at the picture. Finally, it is necessary to complete several basic tasks of reading the diagram and achieve several basic requirements of looking at the diagram.

The board should take into account the connection between the board, there are generally three kinds: V-CUT (V-cut), stamp holes and hollow connection strips. The V cut is used more for the regular board, as long as the two boards are put together, leaving a gap between them (the gap of the V cut). Stamp holes are used more in the special-shaped plate, and multiple holes are punched at the joint of the plate. The hollow connecting strip is the use of a very narrow plate to connect, and it is used more in the board with a half-hole process.

Today, we bring you a complete version of the circuit board production process, hoping to let you have a deeper understanding of the production of circuit boards!

The raw materials used in circuit board processing are mainly substrate, copper foil, PP, photosensitive materials, anti-soldering paint, negatives, etc. Next, PCB manufacturers will briefly tell you the raw materials required for circuit board production.

The volume of electronic products is becoming thinner and shorter. Direct stacking of holes through blind holes is a design method to obtain high density interconnection. To do a good job of stacking holes, first of all, the flatness of the hole bottom should be done. There are several typical flat hole surface production methods, electroplating hole filling process is a representative one.

PCB circuit board quality can be started from two aspects; The first method is to judge from the appearance, and on the other hand, to judge from the quality specification requirements of the PCB board itself.

This kind of board is the simplest, that is, the internal multi-layer circuit board has no buried holes, and the pressing is completed once, although it is a laminated board, its manufacturing is very similar to the conventional multi-layer circuit board a lamination, but the subsequent and multi-layer circuit board is different from the need for laser drilling blind holes and other processes.

PCB is an important electronic component, is the support body of electronic components, and is the carrier of electrical connection of electronic components. Because it is produced by electronic printing, it is called a printed circuit board.

PCB circuit board processing is the product of OEM customers, not the same customer customized products are different, there are few shared products, on the other hand, out of quality thinking, some customers may also specify the use of a manufacturer's substrate, or ink, etc., in order to achieve its quality and cost control requirements, so PCB processing there are variable prices.

If the frequency of the digital logic circuit reaches or exceeds 45MHZ~50MHZ, and the circuit working on this frequency has accounted for a certain amount of the entire electronic system (for example, 1/3), it is usually called a high-frequency circuit (multi-layer circuit board).

The original origin of PCB is to make the circuit diagram of the circuit board with the printed process, but later because of the improved resolution requirements for the line, and the printing process can not meet, it is replaced by a Huang Guang microshadow process with a higher line resolution.