PCB Technical - The core of automotive electronics PCB manufacturing

This advanced world of innovation allows automotive electronics to come up with new ideas and new technologies every other day. Driverless cars, EVs, hybrid electric vehicles, dual-fuel vehicles, and the recent buzz in the automotive industry have promoted the development of miniaturization, multi-functional applications, and robust and compact electronic solutions. With this, safety and safety are becoming the focus of car manufacturers and other OEMs. Choosing the safe PCB that is most suitable for vehicle electronic applications is also a difficult task for vehicle manufacturers and PCB manufacturers. PCB needs proper coating to increase durability and life expectancy. Among them, the conformal coating protects PCB components from environmental pressure. This article outlines the importance of conformal coatings and how it can improve the PCB performance of automotive electronics.

What has become the core driving factor for PCB manufacturing of automotive electronic products

Nowadays, the luxury functions of automobiles are becoming a common requirement of consumers. The standard features of the vehicle include a rear camera, automatic parking system, lane departure warning system, driving assistance system and so on. Although high-tech vehicle software for navigation, communication, networking, music and other technologies is becoming commonplace.

More and more electronic products are used in new vehicles that need to pay attention to the safety of electronic products and security solutions. Current cars have a built-in system for airbag control, automatic transmission, fuel injection system, electric doors and windows, suspension control and engine control modules. This allows researchers and researchers not only to focus on vehicle software, but also high-quality hardware and hardware. For OEMs and automakers, it is now becoming a huge challenge and it is necessary to determine the perfect PCB to be used in manufacturing in order to provide protective automotive electronics in the next generation of Gen innovations.

Engineers have now appeared to adopt different solutions to protect PCBs for automotive applications. After considering the various options for placing the circuit board in the housing or circuit board, which can be painted with resin, the best way to obtain a safe PCB assembly and design is to use a conformal coating. To this end, we first in-depth study the meaning of conformal coating.

The polymer coating is applied to the polymer in the thin layer of the circuit board to electrically insulate the PCB assembly and protect it from environmental stress. These types of coatings are best suited for compact PCBs because they take up less space. There are many ways to apply conformal coatings to printed circuit boards. Robotic dispensing, spraying, flow coating or brushing are methods of applying this type of coating according to the type of production, whether it is at a large-scale, low- or medium-level production level. This safety coating can also improve PCB performance and durability because it protects the circuit board from moisture, thermal and mechanical stress, pollutants and corrosives, including fungi, salt, toxic gases and dirt.

In addition, most lead-free printed circuit board components used in automotive projects have noticed that "tin whiskers" are a common challenge, which stimulates the growth of short circuits caused by thermal and mechanical stress. The pace of this growth can be reduced by preventing short circuits and arcing in the conformal coating in the PCB. By increasing the mechanical support, the advantages of the conformal coating in the PCB can be increased, and the fatigue life of the solder joints can be improved.

The printed circuit board is placed anywhere suitable for the car control system. From brake fluid to gasoline to internal combustion engines, PCBs need the correct type of coating without affecting the vehicle manufacturing process. PCB with conformal coating is the main driving force to ensure electronic solutions in the automotive field.

These conformal coatings can provide a wide range of options according to the type of PCB and its use. Polyurethane acrylate, silicone, solvent-based formula and two-part epoxy resin are safe chemicals for coatings. Although light-curing coatings also have their own advantages, they can provide protective PCB solutions for automotive electronics. Then, choosing the right coating for PCB manufacturing requires proper consultation with PCB manufacturers and PCB experts. It can provide appropriate guidance for choosing protective coatings for PCBs used in automobiles and other automotive electronic products. Perform qualification and environmental testing to simulate the conditions under which a particular coating is best suited for a particular application. These investigations include testing for temperature limits, wear, moisture, vibration, chemicals, salt spray and other hazards.