Electronic Design - Automotive consumer electronics PCB technology and design

The development of smart cars has always been a hot topic, especially after all-electric electric vehicles have set off a green transportation boom, after stimulating the demand for electronic design of unmanned driving, connected cars, active/passive car safety, etc., only the development of new technologies has become With increasing maturity, the demand for automotive electronic PCBs is growing.

Electric vehicles and smart cars can be said to be a trend that promotes the development of key automotive electronics industries, especially in the direction of environmental protection and intelligence. Most of the electronic control functions or components of automobiles play an important role, from the external deployment of a large number of vehicles/sensors, So that the vehicle can truly grasp the driving dynamics and vehicle surrounding information, while expanding the intelligent or electric functions of the vehicle, it also brings the vehicle to an excellent opportunity for upgrading and expansion in the electronic application system.

Automotive electronic control functions have increased the use of PCBs in vehicles, while also increasing

However, for vehicles equipped with a large number of electronic sensors and electronic functional modules, these key subsystems will actually increase the use of PCBs. After all, the vehicle is different from the application slots of conventional electronic equipment. The vehicle may climb mountainous areas and involve Water, outdoor parking lots have to accept long-term high temperature exposure, even long night sky environment, high speed, vibration, and collision during vehicle transportation, and the best operating state of the subsystem must be maintained. The strict requirements of these application and production areas also make automotive PCBs more demanding on products, and even the corresponding safety test conditions are much higher than general consumer electronics requirements.

Especially for vehicle safety issues in the development of active/passive safety modules, and even high safety requirements for autonomous driving modules, in addition to relatively low safety requirements for entertainment systems, surround view projection and other automotive electronic applications, these system modules must use PCBs The integration of key components of the string must also be combined with the vehicle to carry out complex verification requirements and comply with the national management verification standards. Compared with the verification of consumer electronic products, the vehicle PCB requirements will only be more stringent.

Smart cars and electric cars stimulate the use of PCBs. Taiwan’s global printed circuit board production and manufacturing technology should be in a leading position in the world. The actual output will be based on the carrier board of consumer electronics. Operators in the automotive electronics field are still not enough to consume The demand for electronic products, but with smart cars and self-driving cars, the all-electric car market tends to heat up, and the development of automotive PCB products or specific technologies will gradually increase.

For THE PCB, it is basically a carrier board that carries various electronic components and string application modules. This is a support platform for electronic components. Electronic components are key electronic components that are connected by etching the metal film of the conductive circuit.

For the traditional PCB, the printing method of retaining the circuit will be retained, and the metal foil will be etched away with chemical reagents to form the circuit board required for the leads and the surface, so it is called the printed circuit board, which is the pursuit of a new generation of electronic products. While miniaturizing the design, the design of the circuit board must also be reduced with the reduction in volume. Therefore, a new generation of small circuit boards or high-density carrier boards are used for more complex production processes, and the erasing sepsis mode is used when using it. Production of surface traces.

Higher requirements and verification standards for automotive PCB materials

Although the general consumer electronic daughter board and electronic component carrier board can be used directly in the car for electronic use and can maintain normal operation, it cannot be directly replaced in practice because the installation position, use and stability requirements of the automotive electronic subsystem are different. Yes, the requirements for board materials, craftsmanship, etc. will be very different.

In order to be used in driving information systems, general entertainment in-vehicle communications and other in-vehicle electronic equipment, it uses high reliability. The reliability of 1.6mm thick PCB can be adjusted with the smallest material (process), which can meet the requirements of general in-vehicle electronic equipment.