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Heavy Copper PCB

Heavy Copper PCB

heavy copper flex pcb

PCBs with a copper thickness of more than 70um are called thick copper PCBs, sometimes also called thick copper PCBs. Copper thickness typically varies from 105 to 400 µm. The thicker the copper, the higher the power dissipation of the board. These thick copper plates are used for high current output and improved thermal management. Thick copper makes it possible to create boards with cross-sections for high current loads, which also facilitates heat dissipation. Greenstone is one of the China heavy copper pcb heavy copper pcb manufacturers which can provide the most professional products and services.

Advantages of Thick Copper PCB

Thick copper PCB is widely used in

  • various household appliances

  • high-tech products

  • military

  • medical

  • other electronic equipment.

The application of thick copper PCB makes the core component of electronic equipment products-circuit boards have a longer service life, and at the same time it is very helpful to the size reduction of electronic equipment.

Greenstone Heavy Copper PCB Manufacturing Capabilities




FR-4 Standard Tg 140°C, FR4-High Tg 170°C

Min. Track/Spacing

For External layers:

4oz Cu 10mil/13mil,5oz Cu 12mil/15mil,6oz Cu 15mil/15mil,

For Internal layers:

4oz Cu 8mil/8mil,5oz Cu 10mil/10mil,6oz Cu 12mil/12mil

Min. Hole Size

0.15 ~ 0.3mm

Max Outer Layer Copper Weight (Finished)


Board Thickness


Surface Finishing

HASL lead free, Immersion Silver, Immersion gold, OSP, Hard Gold.

Solder Mask

Green, Red, Yellow, Matte Black, Matte green, Blue, White, Black


White, Black

Via Process

Tenting Vias, Plugged Vias, Vias not covered


Fly Probe Testing, fixture test and A.O.I. testing

Build time

5-15 working days

Lead time

3-5 working days

PCB Assembly Cases in GreensTone

pcb assembly cases

Yes, thanks for your update on the projects status,it’s good for me to make our order plan.

—— Pablo from Spain June 20th, 2019.

Your engineer check the files very carefully,thank you for it, it helps me a lot.

—— Mark from a leading LED strips supplier in Australia Match,8th 2018.

The goods arrived very well, the packing is good, thank you.

—— Antonio from Valladolid, Spain May 25th, 2017.

We've been worked with GreensTone for many years, there is no failure.

—— Wally Nunn from Australia---a leading Pool products manufacturer July13th, 2016.

I reached out to GreensTone Electronics to manufacture the circuit boards. After a few discussions, Rebecca could see the community focus of the project and went above and beyond to reduce costs, ensure delivery and filmed elements of the production for educational purposes. Manufacturing offshore isn't as easy as it appears on the surface so it was invaluable to have Rebecca believe in the cause and be an ally in the production working toward the same goal.

—— Mic. from Australia Feb. 10th, 2015, written on his Facebook.

Yes, thank you we received the 34x LC VMS TILE 1C REV A earlier this week. The assembly quality is very good.

—— Ruth from Australia April 9th, 2014.

Thank you for taking time to check it,you are very efficient.

—— Peter Astrom from Sweden Sep 8th, 2013.

Your engineer is very clever,thanks for the help to check the file's problem.

—— Tony from Australia July 21st, 2012.
Get in Touch With GreensTone
Start your contract manufacturing journey with GreensTone today. Simply fill out your details and we'll get in touch with you to discuss your manufacturing needs.
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4F B5 XuJingChang Industry Zone HaoYe Rd. No.39, XinHe Street, FuYong District, Shenzhen, China