Automotive PCB is a circuit board used in automotive electronic systems. It is an electronic component with special design and high reliability requirements, used to support and connect various electronic components and components of the automobile. Automotive circuit boards play a role in connecting and conducting current signals, carrying the vehicle's electrical system functions, such as engine control, body electronic systems, safety devices, etc. It usually consists of a glass fiber reinforced resin substrate and a metal wire layer.

The main characteristics of the automotive circuit board are as follows:

1. High reliability: The car is a complex mechanical equipment that is highly dependent on the electronic system and operates under various harsh conditions, so the car circuit board must have high reliability, be able to operate stably in high temperature, humidity, vibration and other harsh environments, and can withstand heavy loads for a long time

2. Multi-layer structure: In order to meet the functional needs of automotive electronic systems, automotive circuit boards usually use multi-layer structure, with higher integration and more complex circuit connections. Multi-layer structure can reduce the size of the circuit board, and improve the signal transmission speed and anti-interference ability.

3. Special materials: The material selection of automotive circuit boards is also very important, and it needs to have excellent insulation properties, high temperature resistance, chemical corrosion resistance and aging resistance. Commonly used materials include FR-4, polyimide (PI), etc.

4. High-density wiring: In order to meet the complex functional needs of automotive electronic systems and save space, automotive circuit boards usually need to achieve high-density wiring. High density cabling can achieve more connections in a limited space, improving the flexibility and performance of the circuit.

Automotive circuit board is a kind of circuit board used for the special design and high reliability requirements of automotive electronic systems, it has high reliability, multi-layer structure, special materials and high-density wiring characteristics. It is an integral and critical component of modern cars.