Copper circuit boards are widely used in various electronic devices, including but not limited to the following fields:

　　1. Consumer electronics: such as smartphones, tablets, laptops, etc.

　　2. Communication equipment: such as routers, switches, base stations, etc.

　　3. Automotive electronics: such as on-board navigation system, auto drive system, electric vehicle power management system, etc.

　　4. Industrial control: such as PLC (Programmable Logic Controller), frequency converter, CNC machine tool, etc.

　　5. Medical equipment: such as electrocardiographs, ultrasound diagnostic equipment, MRI (magnetic resonance imaging) equipment, etc.

　　The advantages of copper circuit boards

　　1. Good conductivity: Copper has excellent conductivity, which can effectively reduce resistance and energy consumption.

　　2. Excellent thermal conductivity: Copper can quickly dissipate heat, which helps improve the heat dissipation performance of electronic devices.

　　3. High mechanical strength: Copper circuit boards have high mechanical strength and durability, and can withstand repeated mechanical and thermal stresses.

　　4. Environmental Protection and Sustainability: Copper is a renewable resource that is easy to recycle and meet the requirements of environmental protection and sustainable development.

　　In short, as the core component of electronic devices, the quality and performance of copper circuit boards directly affect the stability and reliability of the entire system. With the development of technology and changes in market demand, technological innovation and application expansion of copper circuit boards will continue to drive the progress of the electronic industry.