Definition and production standards for automotive PCB boards

Automotive PCB boards are circuit boards made of a special material and are the core component of modern automotive electronic systems. In this article, we will elaborate the importance and impact of automotive PCB boards from four aspects: definition, characteristics, application and future development.


Automotive PCB is a circuit board specially designed for automotive electronic equipment. Compared with the circuit boards of household appliances, digital products and computer peripherals, it has greater vibration resistance, high temperature resistance and anti-interference performance, and can adapt to the working requirements of automobiles in different road conditions.

Characteristics of automotive PCB

The main characteristics of automotive PCB boards are reflected in the following aspects:

1. Vibration resistance: in the process of automobile driving, the car will experience a lot of vibration such as bumps, vibration, so the automotive PCB board needs to have a high vibration resistance.

2. High temperature resistance: automotive PCB boards need to be able to work properly in high temperature environments to cope with the high temperature effects of the engine, transmission and other components.

3. Anti-interference ability: The working environment of automotive electronic equipment is very complex, there is a large number of electromagnetic interference and noise, so the automotive PCB board needs to have a strong anti-interference ability.

4. Safety: For automotive electronic equipment, safety is the most important thing, only to ensure safety to better protect the vehicle and passengers.

Application of automotive PCB

The application range of automotive PCBs is very wide, including engine control modules, vehicle communication systems, navigation systems, body control modules and so on. Among them, the engine control module is one of the most important application areas, through the control of the engine fuel injection, valve opening time and other parameters, so that the engine can work more efficiently, so as to improve the fuel economy and power performance of the car.

Future development of Automotive PCB

With the continuous development of intelligent vehicles, automotive PCBs will play an increasingly important role. In the future, automotive PCB boards will have a higher degree of integration and stronger computing power, which can process more data and information, realize more flexible and intelligent automotive control, and make the car safer, more convenient and more comfortable.

Standard requirements for the production of automotive PCB circuit boards.

1. The choice of materials

PCB circuit board production materials should be selected in accordance with industry standards for high-quality materials. For example, the substrate material should be selected in accordance with UL certification standards for polymer materials to ensure its high temperature resistance and flame retardant properties. The solder pads should be made of hard metal or polymer materials. Selected materials must comply with national or vehicle factory standards, otherwise it may affect the performance of the entire system and lead to safety hazards.

2. Board manufacturing process requirements

Automotive PCB circuit board manufacturing process requirements are very high. Must master a good board manufacturing process, to avoid defects arising from the manufacturing process and lead to system performance degradation, signal interference and other problems. The board manufacturing process includes a high-precision compression process, PCB boards and substrates of the extreme microchipping, composite welding, and strict control of the production process.

3.welding process requirements

Welding process is the key factor affecting the quality of automotive PCB circuit boards. Good welding technology not only requires good welding machines and equipment, but also requires strict control of conditions, high-quality welding materials and real operator skills. In the welding process, we should avoid the use of welding materials that do not meet the specifications, such as poor quality solder, otherwise it will lead to high loads when the solder joint failure.

4. testing and quality control

After the manufacture of each piece of automotive PCB circuit boards, that is, the need for strict quality control. This includes checking board quality, short circuits, circuit breakers, excessive or insufficient solder, defects and other issues. These issues are often impossible to check with the naked eye, so high-precision test tools are needed to ensure that all boards meet industry-standard requirements.

Automotive PCB boards are the core component of modern automotive electronic systems, with high vibration resistance, high temperature resistance and anti-interference capability, and are widely used in engine control modules, in-vehicle communication systems, navigation systems and other fields. With the development of intelligent cars, automotive PCB boards will have higher integration and stronger computing power to realize more intelligent, convenient and safe car control.