PCB News - Prerequisites for high-quality PCB circuit boards

Prerequisites for high-quality PCB circuit boards

With the rapid development of science and technology, more and more high technologies are gradually being integrated into people's lives. The application field of PCB circuit boards has become more and more extensive, because many electronic equipment and related products will use professional printed circuit boards. Moreover, high-quality PCB circuit boards for smart electronic products can enhance the circuit stability of the product, and thus can optimize the overall performance of the product.
The following are the necessary conditions for high-quality PCB circuit boards considered by the editors of Zhongke Circuits.
1. The appearance is bright, clean and flat
Regardless of whether it is a semi-finished product, the first consideration to measure the quality of a PCB circuit board is its appearance. The surface of the printed circuit board should be bright and flat, and the wiring inside should be in accordance with the convention and smooth. In addition, the substrate must not be bent, deformed and pitted, and must not have cracks, scars, and ink shedding.

2. The line layout is reasonable and clever
They are all called circuit boards, so I don't need to talk about the importance of circuit layout, hehe. Considering that the power supply of electronic products and various responses after the implementation of instructions must be completed with the help of printed circuit boards, high-quality PCB circuit boards will require PCB circuit board design solutions that meet the requirements. It can be considered to design PCB single-sided, double-sided and multi-layer circuit boards according to the complexity of electronic products, but no matter which type of printed circuit board is selected, it must have the accuracy of the circuit and comply with the specified layout trend to prevent There is a phenomenon of jams caused by redundant lines.
3. Small thermal expansion coefficient
The coefficient of thermal expansion is also important. High-quality PCB circuit boards must have a relatively stable shape, and can shrink and expand rapidly under the influence of cold and hot environments, so their thermal expansion coefficient needs to be controlled within a small range, otherwise it will harm the printing The product quality and use effect of the circuit board. The electronic components on the substrate suffered severe damage in the near future.
4. Good heat resistance
The heat resistance of the circuit board is very important to measure its quality. After customers receive the PCB circuit board, they need to assemble it into the goods they need. The most commonly used method in the assembly process is soldering. Therefore, high-quality printed circuit boards also need heat-resistant requirements. Moreover, the instantaneous high temperature that occurs during load-bearing welding must be considered.
The above are some of the standards required for high-quality PCB circuit boards. It can be seen that although a printed circuit board is small, it cannot be underestimated. Therefore, companies must first find a reputable PCB circuit board manufacturer to ensure that the processed printed circuit board can be considered to meet the corresponding standards in many aspects. Therefore, the product quality of the PCB circuit board is ensured. The above only represents my personal views, and you are welcome to correct and criticize!
Shenzhen Zhongke Circuit Technology Co., Ltd. is a PCB board proofing and small and medium batch circuit board manufacturer, focusing on high-precision PCB circuit boards, double/multilayer circuit boards, HDI boards,blind buried via circuit boards, PCB high frequency boards, Special circuit boards, etc., have many years of PCB production experience for medical/security/industrial control/automotive/communication/military industry.