Thick Copper PCB
Venture’s10 years thick copper PCB experiences can make sure the whole processes are been handled correctly.
Your Best Thick (Heavy) Copper PCB Manufacturer in China
A Thick copper PCB( also named heavy copper PCB, thick copper printed circuit board) usually refers to a PCB with finished copper thickness≥ 3 oz per square foot in the inner and/or outer layers. So for example: when you have a PCB with 2oz copper per square foot thickness we will treat it as standard copper thickness, but if your PCB is 4oz per square foot copper thickness we will we will call it is a thick copper PCB(heavy copper PCB).
Your Best Thick Copper PCB Supplier
Venture has more than 10 years experiences producing thick copper PCBs, from single side PCB to multilayer PCBs, our thick copper( heavy copper) PCB have been widely used in, automotive, computer, industrial controls and military applications, such as
- High power rectifiers
- Power converters
- UPS systems
- Protection relays
- Welding equipment
- Radar systems
Why Choose Venture Thick Copper PCB
High current applications can bring challenges to PCB manufacturers because the loads they need to manage concerns safety, the solder mask process must be strictly controlled since the heavy copper thickness is much thicker than the substrate,it can cause issues during solder mask process, meanwhile pattern etching process, lamination and drilling process are all needed to be strictly controlled during thick copper PCB manufacturing. 
When electrical engineer design the thick copper PCB, what they most concern is the width and thickness of the heavy copper since this will determine how big current-carrying capacity the PCB can be. So besides the high current-carrying capacity, what else benefits does thick copper PCB have:
- Thick copper PCBs can eliminate the wired bus configurations
- Thick copper PCBs allow selective areas plated with Heavy copper, this can be used as a heat sink
- Thick copper PCBs are able to resist higher temperatures for longer times and provide stronger connection points
What is the Width and Wire spaceing request for thick Copper PCB ?
Venture can produce the thick copper PCBs more than 16 oz. However, when the copper thickness more than 3 oz,we should should be paid to the width and wire spacing of the inner layer (line width/space), inner layer outer layer
3oz: 8/10mil 8/12mil 4oz: 8/12mil 9/13mil
5oz: 10/12mil 10/14mil 6oz: 12/14mil 12/16mil
7oz : 14/16mil 14/18mil 8oz :14/18mil 16/18mil
(1oz=35um or1.35 mil )
The more we should know about thick Copper PCB ?
Industry Quality Standerds:
●ISO9001 Standerd ●ISO14000 Standerd ●UL Standerd
The shelt life of thick copper PCB: it can estimated at up 0.5 to 1 year with an thick copper PCB average thckiness rangeing from 0.12um to 0.4um
Elements affecting the shelf life of thick copper PCBs
●Airborne pollutants
●Types of Solder
●Method of welding
How to choose the best Thick copper PCB supplier In China ?
We should check as following
●Online Quote ●Availability of design
●With Final Inspection report ●Meet thick copper PCB standerd
●Short delivery time ●One by one solution for customer’s request
Venture can help you create heavy copper PCBs according to your needs.we have a strict quality management system that can ensure the high performance of your PCBs.All of the product with ISO, UL, and RoHS certified.
Thick Copper PCB (Heavy Copper PCB) Capabilities:
Thick Copper PCB Feature | Specification |
| Layers Counts | 1-32 layers |
| Materials | FR-4 (All Tg Ranges), Teflon, Ceramic, Metal Core |
| Finished Thickness | .020″ – .275″ |
| Solder mask color | Green, Blue, Red, Black, Clear & White Solder Masks & Legend Inks |
| Minimum solder mask Clearance | 6 mil |
| Minimum solder Dam Width | 5.5 mil |
| Maximum Copper weights (finished) | 16oz |
| Minimum drilling bit hole size | .012″ |
| Maximum Hole Aspect Ratio | 30:1 |
| Controlled impedance | ± 10% |
| Surface finishes available | HASL( Hot Air Solder Leveling), Immersion gold( ENIG), Immersion silver |
If you’re not sure whether your products require thick copper PCB (heavy copper PCB) or how thickness the copper it goes, or how a thick copper printed circuit board can do to protect your sensitive circuits, we’re more than happy to share everything we know from our 10 years experiences. we are trusted by thousands of electronic engineers all around the world through our100% quality guaranteed policy. With our 2 hours rapid response services from our 24/7 sales and tech support team and excellent after-sales service, we will be your best thick copper( heavy copper)PCB supplier in China. At Venture we can answer any thick copper PCB questions that you may have, pls feel free to contact us anytime.
PCB & Assembly Catalog
Download the FREE PCB & Assembly Catalog online today! Venture will be your best partner on the way of bring your idea to market.
