Thick Copper PCB

Thick Copper PCBs


Standard printed circuit boards, whether single, double or multilayer, are generally manufactured using 1OZ or 2OZ copper. However, a growing trend in the PCB industry, PCB Copper thickness utilize 3 or more ounces of finished copper in their inner and/or outer layers. Advanced development of telecommunications and electronics industry largely contribute to the rising demands for heavy copper PCBs as they are capable to carry high currents and conduct heat away more efficiently. They can be designed to accommodate the high current requirements of the design and hence a large number of products are taking advantage of the technology. At Sierra Assembly Technology, we offer precision manufactured thick copper PCBs that help meet your performance expectations.

Sierra Capabilities in Thick Copper PCB Manufacturing

At Sierra Assembly Technology, we own the manufacturing expertise, right people and infrastructure to accommodate challenging heavy copper PCB manufacturing. Whatever is your requirement, we stringently incorporate them in the design, helping the customers achieve their productivity and profitability goals. Being an experienced thick copper PCB manufacturer, we own the following capabilities.
  • Number of Layers: 2 – 24 layers
  • Materials: FR-4 Standard Tg 140°C, FR4-High Tg 170°C
  • Board Size: Min 6mm x 6mm | Max 457mm x 610mm
  • Board Thickness: 0.6mm - 6.5mm
  • Copper Thickness: 70µm / 105µm / 140µm / 210µm
  • Copper Plating Holes: 20µm ( 25µm )
  • Solder Mask Color: Green, White, Blue, Black, Red, Yellow
  • Silkscreen Color: White, Black, Yellow
  • Surface Finish: HASL - Hot Air Solder Leveling, Lead Free HASL – RoHS, ENIG - Electroless Nickle/Immersion Gold – RoHS
  • Build time: 24H to 3weeks

Why Choose Thick Copper PCB for your Applications

Heavy Copper PCBs can offer several benefits in applications requiring high power or current. Following are the features that contribute to the popularity and wide acceptance of thick copper PCBs.
  • Can withstand frequent exposure to excessive current
  • High tolerance capacity
  • Excellent endurance to thermal strains.
  • Better current conductivity
  • Can survive repeated thermal cycling
  • Smaller PCB sizes due to copper layers
  • Reduced failure rates
  • Increased connector site strength
  • Lower production costs
  • Excellent mechanical strength at connector sites and in PTH holes.

Applications of Thick Copper PCBs

As a leading thick copper PCB manufacturer, we cater to the rising demands of customers from the defense, military, power, nuclear, automotive industries, among others. A few application examples of heavy copper PCBs include:
  • Power amplifier modules
  • DC to-DC power converters
  • Planar transformers
  • Heat dissipation products
  • Automotive power distribution junction boxes
  • High power distribution boards
  • Weapons control systems
  • Power supplies in radar systems
  • Power distribution panels
  • Battery charger and monitoring systems
  • Central power system
  • Power electronic devices
With a rich legacy, world class talent, and innovative breakthroughs, we can transform even the most complicated design to high performance thick copper boards in short turnaround times. Designed in adherence to all regulatory standards, the offered printed circuit boards will bring you expected high end performance. If you have questions about our thick copper PCB manufacturing capabilities, speak to an expert at Sierra Assembly at the earliest. Free PCB quotation is just a click away.

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