The reason for the bending of the circuit inside the PCB circuit board

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Update time : 2023-01-13 10:49:56
With the rapid development of modern technology, various electronic products are increasingly inseparable from life. Some friends like to disassemble some old electronic products, and they will find that the circuits of the circuit boards in the electronic products are more complicated. Why are the lines in the circuit board curved? We all have the shortest straight line between two points. Can’t the circuit board be designed as a straight line?

First of all, if the lines in the circuit board are designed to be straight, the area of the circuit board will increase several times. In today's era of pursuing exquisiteness and compactness, the smaller the area of the circuit board, the better, otherwise it will directly affect the area of electronic products. It is estimated that people's requirements for electronic products are: except for the larger screen, everything else should be smaller and smaller, and the thickness should be as thin as possible.

Secondly, even if we don't care about the size of the circuit board and design the circuit in the circuit board as a straight line, it will cause other problems. In the circuit board, the line will definitely need to turn. If we design the circuit in the circuit board as a straight line, then the turning angle reaches ninety degrees. Because the line easily produces a large reflection when it is turned at ninety degrees, such a circuit board is easily broken during the production process. In this case, it will not only cause a waste of materials, but even if the circuit board is successfully manufactured, it is easy to cause quality problems.

Third, the lines on the circuit board are designed to be bent to ensure the stability of the signal. The design of the circuit board is a technical activity, and only by adopting the corresponding design can the stability of the signal be guaranteed. The chips on the board can only work properly if the signal is not disturbed.

Every squiggly line on the board represents a different signal. If the lines on the circuit board are designed as a straight line, it is easy to cause mutual interference between the signals, making our electronic equipment not work properly. If our mobile phone signal is disturbed, it is likely that there is a problem with the circuit board, so such a mobile phone can almost be declared useless.
The circuit board is constructed from devices, capacitors, diodes, etc., and these many lines form a complete circuit. If you are using a speaker, when you turn on the switch, the speaker will work and make sound, but as long as the pattern on the circuit board is broken, then the speaker will not work, because they are all interdependent. So don't look at the circuit board's circuit design as if it has no rules, but in fact there is great wisdom in it. Senyan undertakes all kinds of PCB, FPC, PCBA, allegro and fast samples of soft and hard combination boards, as well as small and medium batch production of various electronic products/semi-finished products. The products mainly focus on industrial electronics, automotive electronics, medical electronics and communications class electronics.
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