High-performance Substrate Polyimide Thick Copper PCB Multilayer Copper Stacked PCB Board

♦ What is Thick copper PCB? 

Thick copper PCB refers to a circuit board formed by bonding a layer of copper foil with a thickness of 2 ounces (oz, about 62.5 microns) or more to FR-4 or other substrates during the printed circuit board (PCB) manufacturing process.

♦ Features of Thick Copper PCB

• • ​​​​Large current carrying capacity: copper thickness ≥3oz, can pass 100A+ current, low temperature rise.

  • ​​Strong heat dissipation: high thermal conductivity, heat dissipation efficiency increased by 5 times+, temperature rise reduced by 10-15℃.

  • ​​High mechanical strength: bending resistance increased by 50%, high temperature vibration resistance, adaptable to harsh environments.

  • ​​Electrical stability: low impedance, low loss, low risk of delamination at high temperature.

  • ​​Flexible design: supports wide line width (≥100mil) and multi-layer thick copper stacking.

  • ​​Complex process: etching/drilling is difficult, yield rate is 85%-90%.

  • ​​High cost: material + processing premium is 30%-50%, and the unit price is high.

♦ Applications of Thick Copper PCB

• • ​​Power supply equipment: high-power switching power supply, inverter, UPS, etc.
  • ​​Automotive electronics: electric vehicle motor controller, on-board charger, battery management system.
  • ​​Industrial control: motor driver, servo controller, welding equipment.
  • ​​New energy field: photovoltaic inverter, wind power converter.
  • High-power LED lighting: LED driver board that needs heat dissipation and current carrying

♦ Technical Parameters

 

 

 

♦ One-Stop PCBs Solution

 

PCB Prototype	Felx PCB	Rigid-Flex PCB	Aluminium PCB
Heavy Copper PCB	HDI PCB	High Frequency PCB	High TG PCB

 

 

 

 

♦ Advantages of DQS Team

1. On-time Delivery:  

• • Owned PCBA factories 15,000 ㎡
  • 13 fully automatic SMT lines 
  • 4 DIP assembly lines

 

     2. Quality Guaranteed:

• • IATF, ISO, IPC, UL standards 
  • Online SPI, AOI, X-Ray Inspection 
  • The qualified rate of products reach 99.9%

 

     3. Premium Service:

• • 24H reply your inquiry；
  • Perfect after-sales service system；
  • From prototype to mass production