the

1. High energy/strong electricity

　　1. High energy: The power IGBT (Insulated Gate Field Effect Transistor and Bipolar Transistor Combination) modules used in automotive communication module circuit boards, electric vehicle drive circuits and drive modules will generate 1000 to 2000W of heat.

2. New PCB board: New energy vehicle's medium and small power inverter speed control device, high power inverter speed control device, inverter device, induction heating device, reactive power compensation, active filter, communication (network) power supply must have Ceramic copper clad laminate, aluminum silicon carbide substrate material.

　　3. Based on LED lighting system

　　4. Frequency conversion speed regulation device

　　 5. Strong current controller, connection box

　　 6. Inverter

　　 2. High-density interconnection (HDI) of automotive circuit boards

　　1. Advantages: the size of the car circuit board is reduced, the number of layers is reduced; the inner layer has multiple wiring vacancies; reduces the risk of tin bridge short circuit; hot microvia;

　　2. Laser drilling micro-hole application;