Customized 0.5-15OZ Heavy Copper PCB Manufacturer

Customized 0.5-15OZ Heavy Copper PCB Manufacturer

♦ What is Heavy Copper PCB?

A Heavy Copper PCB is a printed circuit board that contains copper conductors 3 oz/ft² (≈ 105 µm) or thicker on any layer; the term is usually reserved for boards with ≥ 4 oz (≈ 140 µm) and can go up to 20 oz (≈ 700 µm) or more. The thick copper carries high continuous currents (tens to thousands of amps), provides low resistance and excellent thermal conductivity, and acts as an integral heat-sink. These boards are built by laminating thick copper foils or electro-plating to raise copper weight, then deep-etching to form traces and pads. Typical applications include power converters, motor drives, welding equipment, solar inverters, automotive battery-management systems, and military/aerospace power supplies.

♦ Technical Parameters

MC PCB Capability
Item		Standard	Advance
Layers		1-2 layers	4-6 layers
Max Panel Size		400*800mm	600*1200mm
Min Panel Size		5*5mm	5*5mm
Board Thickness		0.6mm-4.0mm	4.0mm-7.0mm
Min. Line Width/Space		3mil/3mil	2mil/2mil
Min. Hole Size		0.1mm	0.075mm
Copper Thickness		0.5-4oz	15oz
Tolerance	Line Width	±10%	±5%
	PTH Hole Size	±0.075mm	±0.05mm
	NPTH Hole Size	± 0.05mm	±0.025mm
	Hole Position	±0.05mm	±0.025mm
	Outline	±0.1mm	± 0.075mm
	Board Thickness	±10%	±5%
Thermal Conductivity		1W/mk, 2W/mk, 3w/mk	5W/mk, 8W/mk
Impedance Control		± 10%	± 8%
Bow and Twist		0.75%	0.50%
Board Material		Al Base, Cu Base, Fe Base, Ceramic Base
Surface Finish		HAL(with Pb free), Plated Ni/Au, ENIG, Immersion Tin,Immersion Ag OSP etc.
Solder Mask		Yellow, Red, White, Black, Blue, Green, Grey,etc.
Legend Color		White, Black, Yellow Grey, Sliver Grey, etc.
Certification		UL, IATF16949, ISO, RoHs & Reach

♦ 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

DQS Electronic is located in Shenzhen, focusing on PCB Layout Design, PCB Fabrication, Electronic Components Sourcing, SMT, PCB Assembly and Testing. We are a one-stop EMS electronic manufacturing company committed to providing global customers with rapid prototyping and mass production.

Our products include single, double, multi, high frequency, aluminum base, copper base, FR-4 and other high precision circuit boards.

We have over 10 years of experience in serving many domestic and foreign brand customers in a wide range of fields such as Medical, Automotive, Industrial Automation, Artificial Intelligence, Smart Home, Security, Power and Communications, etc..