Heavy copper PCB is also known as thick copper PCB, in which there are 3 ounces (oz) of copper or more on the
internal and external layers of a printed circuit board. The circuit board with a copper thickness of more than 4 oz
per square foot (ft2) is also categorized as a heavy copper PCB. Extreme copper means 20 oz per ft2 to 200 oz per ft2.
The reason why heavy copper PCB is the reliable wiring platform is that the thicker plating in the through-holes
circuits and an appropriate substrate combined with copper weight. Heavy copper conductors can improve the
whole PCB thickness considerably, so it needs to take the copper thickness into consideration as PCB design.
The width and thickness of thick copper determine the current-carrying capability.
LingtechPCB is a highly skilled thick copper PCB manufacturer that can develop and produce a superior thick copper
PCB product of the highest quality. We offer a thick copper PCB manufacturing service that uses copper weights
of up to 15oz (525μm). Check our capabilities in the following table:
Feature | Capability |
Quality Grade | Standard IPC2 |
Number of Layers | 2-24layers |
Order Quantity | 1-100000+pcs |
Build Time | 2days-4weeks |
Material | FR-4 Standard Tg 140°C, FR4-High Tg 170°C |
Board Size | Min 5mm x 5mm | Max 500mm x 610mm |
Board Thickness | 0.6mm-6.5mm |
Max Outer Layer Copper Weight (Finished) | 15oz |
Max Inner Layer Copper Weight | 12oz |
Min Tracing/Spacing | For External layers:
4ozCu 9mil/9mil 5oz Cu 11mil/11mil 6oz Cu 13mil/13mil 12oz Cu 20mil/32mil 15oz Cu32mil/40mil
For Internal layers: 4oz Cu 8mil/12mil 50z Cu 10mil/15mil 6ozCu 12mil/17mil 12oz Cu 20mil/32mil |
Solder Mask Sides | follow the file |
Solder Mask Color | Green, White, Blue, Black, Red,Yellow,etc |
Silkscreen Sides | follow the file |
Silkscreen Color | White, Black, Yellow,etc |
Surface Finish | HASL-Hot Air Solder Leveling ,Lead Free HASL-RoHS
ENIG – Electroless Nickle/Immersion Gold – RoHS |
Min Annular Ring | 6mil |
Min Drilling Hole Diameter | 10mil |
other Techniques | Gold fingers
Blind/Buried Vias |
LingtechPCB has a decade of experience in manufacturing and assembling high-performing standard and heavy copper
PCB products that help our customers achieve their productivity and profitability goals. We make it a standard
operating procedure to have our highly skilled engineers run design for manufacture on every circuit file, and address
all questions and concerns before production. This helps to ensure the finished electronic boards meet your
performance expectations. Our capable staff includes an in-house quality control department – we guarantee the
quality of our printed circuit boards.
(Note: To ensure we can fabricate your thick copper PCB correctly, it is important to take the greater width of traces
and spacing between the traces caused by the increased copper weight into consideration.)
Thick Copper PCB manufacturing price can be get within seconds. Just click below button to enter our PCB Quote
page, then fill in your circuit spec, the PCB price will show up in the right column. Whenever you are ready to order,
follow our online guide to submit the order, upload PCB design file (Gerber format preferred | Preorder Checklist)
and issue the payment. We will schedule your heavy copper PCB fabrication right away.
Quote for Thick Copper PCB Fabrication
If you got questions about our Heavy Copper PCB manufacturing capabilities or your custom project required
specifications are not listed in this page, reach us at anytime. We will reply within one working day