CarPCB board is a circuit board specifically designed and manufactured for automotive electronic systems. It carries functional modules such as engine control unit (ECU), in car entertainment system, driving assistance system, etc., playing a key role in connecting and transmitting electrical signals to ensure the normal operation of automotive electronic devices. The PCB board on the car is different from ordinary PCB boards, and it needs to meet strict safety, reliability, and stability standards
Usually, materials with high temperature and pressure resistance are used, such asFR-4 material to meet the requirements of automotive working environment. At the same time, it is necessary to adopt a reasonable wiring method to reduce interference and improve signal stability.
For drilling, the difficulty of drilling this type of board lies in
The thickness of the board makes it easy for the temperature to be too high during drilling, and coupled with the low TG value of the resin, it is prone to softening due to heat, resulting in coarse holes
High drilling temperature and easy wear of drilling needles can lead to poor quality of hole walls and other issues
For the drilling difficulties of automotive PCB boards, our company designs drilling needles from the following perspectives
| Knife shape | Coating | Characteristic |
|---|---|---|
| UCN series | Hard coating/lubricating coati | Good chip removal ability, combined with hard coating, enhances positioning ability, and can balance chip removal, wear resistance, and positioning ability |
