PCBTok is Your Remarkable Heavy Copper PCB Fabricator
PCBTok strives to please you by providing you only excellence; hence, we’re open to your ideas. Any concepts are accepted, and we’d be honored to sort it out for you.
- Experienced PCB manufacturer for 12 years.
- IPC Class 2 or 3 for all printed circuit boards.
- Available anytime to support you with customized PCBs.
- Adequate supplies to meet your requests.
- Offer complimentary samples before placing bulk orders.
Heavy Copper PCB by PCBTok is Exceptional
We guarantee you a low-cost, but top-notch quality Heavy Copper PCB here at PCBTok. Our primary goal is to provide you with the value you deserve by providing excellent customer service and exceptional products.
We take into consideration your concepts and ideas in mind; thus, we’re prepared with the possible supplies you’ll need for your Heavy Copper circuit board.
Immediately contact us! Get your PCB customized right away!
PCBTok is famous for its competence in Heavy Copper PCB and other PCBs. We can respond to queries you have about PCBs in order to help you actualize your concepts.
Heavy Copper PCB By Feature
Heavy Copper PCB By Layers (5)
Heavy Copper PCB By Copper Thickness (6)
Advantages of Heavy Copper PCB Use
A Heavy Copper PCB can bring various benefits to an electronic device, and it is ideal for sophisticated operations. The following are some of its advantages:
- Mechanical Strength: It is exceptionally strong mechanically.
- Material Options: A Heavy Copper PCB can be made out of a wide range of unique components.
- Good Thermal Resistivity: Copper-plated vias are responsible for high resistance.
Choosing the best PCB will pay off in the long run. And, by selecting PCBTok as your manufacturer, you can guarantee all of this!
Heavy Copper PCB Production Process
PCBTok’s Heavy Copper PCB is constructed with precision, cutting-edge technology, and world-class quality. As a result, we are known for being UL and ISO accredited.
Before it gets to your doorstep, your PCB goes through thorough X-Ray Tests, Functional Tests, the classic AOI Test, and the Flying Probe Test to achieve the highest quality. Furthermore, with our PCB, we have set strict standards to provide you with a satisfactory product.
PCBTok’s PCB assures that your PCB layouts are streamlined and followed.
PCBTok: Highly Capable Heavy Copper PCB Producer
PCBTok’s Heavy Copper PCBs use sophisticated and certified resources to manufacture products that have passed various accreditation tests. We’re doing this to ensure that you save a lump of money down the road.
|Min trace/space on different copper thickness min. annular drill size|
|Min annular drill base on drill bit(mm)||0.15||0.2||0.3||0.35||0.5|
Hit us today by calling us!
Consider PCBTok’s Premium Heavy Copper PCB
PCBTok’s primary mission is to provide high-quality products to its customers, and our Heavy Copper PCB will be no exception. Part of our goal is to assist consumers in saving a significant amount of money over the long term.
We produce a wide range of PCBs for various applications. We can surely give you a smart industrial circuit board if you need one!
Should you need help with your PCB design, we have a highly-skilled workforce on hand.
Enquire today! Grab your Heavy Copper PCB immediately!
Heavy Copper PCB Fabrication
Our Heavy Copper PCB comes in multiple surface finishes, which you may possibly consider based on your purpose.
Talking about Heavy Copper PCB, surface polish is essential. PCBTok provides surface treatments that are tailored to your specific demands.
Check it out today! Grab your PCB with PCBTok immediately!
PCBTok’s Heavy Copper PCB is available in a selection of Solder Mask colors to match your requirements and application.
Given the importance of Solder Mask Colors for Heavy Copper PCBs, PCBTok is prepared to offer you what you need.
Satisfy your needs with PCBTok’s PCB today! Call us to avail!
OEM & ODM Heavy Copper PCB Applications
Heavy Copper PCB Production Details As Following Up
|1||Layer Count||1-20 layers||22-40 layer|
|2||Base Material||KB、Shengyi、ShengyiSF305、FR408、FR408HR、IS410、FR406、GETEK、370HR、IT180A、Rogers4350、Rogers400、PTFE Laminates(Rogers series、Taconic series、Arlon series、Nelco series)、Rogers/Taconic/Arlon/Nelco laminate with FR-4 material(including partial Ro4350B hybrid laminating with FR-4)|
|3||PCB Type||Rigid PCB/FPC/Flex-Rigid||Backplane、HDI、High multi-layer blind&buried PCB、Embedded Capacitance、Embedded resistance board 、Heavy copper power PCB、Backdrill.|
|4||Lamination type||Blind&buried via type||Mechanical blind&burried vias with less than 3 times laminating||Mechanical blind&burried vias with less than 2 times laminating|
|HDI PCB||1+n+1,1+1+n+1+1,2+n+2,3+n+3(n buried vias≤0.3mm),Laser blind via can be filling plating||1+n+1,1+1+n+1+1,2+n+2,3+n+3(n buried vias≤0.3mm),Laser blind via can be filling plating|
|5||Finished Board Thickness||0.2-3.2mm||3.4-7mm|
|6||Minimum Core Thickness||0.15mm(6mil)||0.1mm(4mil)|
|7||Copper Thickness||Min. 1/2 OZ, Max. 4 OZ||Min. 1/3 OZ, Max. 10 OZ|
|9||Maximum Board Size||500*600mm(19”*23”)||1100*500mm(43”*19”)|
|10||Hole||Min laser drilling size||4mil||4mil|
|Max laser drilling size||6mil||6mil|
|Max aspect ratio for Hole plate||10:1（hole diameter＞8mil）||20:1|
|Max aspect ratio for laser via filling plating||0.9:1(Depth included copper thickness)||1:1(Depth included copper thickness)|
|Max aspect ratio for mechanical depth-
control drilling board(Blind hole drilling depth/blind hole size)
|0.8:1(drilling tool size≥10mil)||1.3:1(drilling tool size≤8mil),1.15:1(drilling tool size≥10mil)|
|Min. depth of Mechanical depth-control(back drill)||8mil||8mil|
|Min gap between hole wall and
conductor (None blind and buried via PCB)
|Min gap between hole wall conductor (Blind and buried via PCB)||8mil(1 times laminating),10mil(2 times laminating), 12mil(3 times laminating)||7mil(1 time laminating), 8mil(2 times laminating), 9mil(3 times laminating)|
|Min gab between hole wall conductor(Laser blind hole buried via PCB)||7mil（1+N+1）；8mil（1+1+N+1+1 or 2+N+2）||7mil（1+N+1）；8mil（1+1+N+1+1 or 2+N+2）|
|Min space between laser holes and conductor||6mil||5mil|
|Min space between hole walls in different net||10mil||10mil|
|Min space between hole walls in the same net||6mil(thru-hole& laser hole PCB),10mil(Mechanical blind&buried PCB)||6mil(thru-hole& laser hole PCB),10mil(Mechanical blind&buried PCB)|
|Min space bwteen NPTH hole walls||8mil||8mil|
|Hole location tolerance||±2mil||±2mil|
|Pressfit holes tolerance||±2mil||±2mil|
|Countersink depth tolerance||±6mil||±6mil|
|Countersink hole size tolerance||±6mil||±6mil|
|11||Pad(ring)||Min Pad size for laser drillings||10mil(for 4mil laser via),11mil(for 5mil laser via)||10mil(for 4mil laser via),11mil(for 5mil laser via)|
|Min Pad size for mechanical drillings||16mil(8mil drillings)||16mil(8mil drillings)|
|Min BGA pad size||HASL:10mil, LF HASL:12mil, other surface technics are 10mil(7mil is ok for flash gold)||HASL:10mil, LF HASL:12mil, other surface technics are 7mi|
|Pad size tolerance(BGA)||±1.5mil(pad size≤10mil);±15%(pad size>10mil)||±1.2mil(pad size≤12mil);±10%(pad size≥12mil)|
|1OZ: 3/4mil||1OZ: 3/4mil|
|2OZ: 4/5.5mil||2OZ: 4/5mil|
|3OZ: 5/8mil||3OZ: 5/8mil|
|4OZ: 6/11mil||4OZ: 6/11mil|
|5OZ: 7/14mil||5OZ: 7/13.5mil|
|6OZ: 8/16mil||6OZ: 8/15mil|
|7OZ: 9/19mil||7OZ: 9/18mil|
|8OZ: 10/22mil||8OZ: 10/21mil|
|9OZ: 11/25mil||9OZ: 11/24mil|
|10OZ: 12/28mil||10OZ: 12/27mil|
|1OZ: 4.8/5mil||1OZ: 4.5/5mil|
|1.43OZ（negative ）:5/8||1.43OZ（negative ）:5/7|
|2OZ: 6/8mil||2OZ: 6/7mil|
|3OZ: 6/12mil||3OZ: 6/10mil|
|4OZ: 7.5/15mil||4OZ: 7.5/13mil|
|5OZ: 9/18mil||5OZ: 9/16mil|
|6OZ: 10/21mil||6OZ: 10/19mil|
|7OZ: 11/25mil||7OZ: 11/22mil|
|8OZ: 12/29mil||8OZ: 12/26mil|
|9OZ: 13/33mil||9OZ: 13/30mil|
|10OZ: 14/38mil||10OZ: 14/35mil|
|13||Dimension Tolerance||Hole Position||0.08 ( 3 mils)|
|Conductor Width(W)||20% Deviation of Master
|1mil Deviation of Master
|Outline Dimension||0.15 mm ( 6 mils)||0.10 mm ( 4 mils)|
|Conductors & Outline
( C – O )
|0.15 mm ( 6 mils)||0.13 mm ( 5 mils)|
|Warp and Twist||0.75%||0.50%|
|14||Solder Mask||Max drilling tool size for via filled with Soldermask (single side)||35.4mil||35.4mil|
|Soldermask color||Green, Black, Blue, Red, White, Yellow,Purple matte/glossy|
|Silkscreen color||White, Black,Blue,Yellow|
|Max hole size for via filled with Blue glue aluminium||197mil||197mil|
|Finish hole size for via filled with resin||4-25.4mil||4-25.4mil|
|Max aspect ratio for via filled with resin board||8:1||12:1|
|Min width of soldermask bridge||Base copper≤0.5 oz、Immersion Tin： 7.5mil(Black), 5.5mil(Other color) , 8mil( on copper area)|
|Base copper≤0.5 oz、Finish treatment not Immersion Tin ： 5.5 mil(Black,extremity 5mil), 4mil(Other
color,extremity 3.5mil) , 8mil( on copper area
|Base coppe 1 oz: 4mil(Green), 5mil(Other color) , 5.5mil(Black,extremity 5mil),8mil( on copper area)|
|Base copper 1.43 oz: 4mil(Green), 5.5mil(Other color) , 6mil(Black), 8mil( on copper area)|
|Base copper 2 oz-4 oz: 6mil, 8mil( on copper area)|
|15||Surface Treatment||Lead free||Flash gold(electroplated gold)、ENIG、Hard gold、Flash gold、HASL Lead free、OSP、ENEPIG、Soft gold、Immersion silver、Immersion Tin、ENIG+OSP,ENIG+Gold finger,Flash gold(electroplated gold)+Gold finger,Immersion silver+Gold finger,Immersion Tin+Gold finge|
|Aspect ratio||10:1(HASL Lead free、HASL Lead、ENIG、Immersion Tin、Immersion silver、ENEPIG);8:1(OSP)|
|Max finished size||HASL Lead 22″*39″；HASL Lead free 22″*24″；Flash gold 24″*24″；Hard gold 24″*28″；ENIG 21″*27″；Flash gold(electroplated gold) 21″*48″；Immersion Tin 16″*21″；Immersion silver 16″*18″；OSP 24″*40″；|
|Min finished size||HASL Lead 5″*6″；HASL Lead free 10″*10″；Flash gold 12″*16″；Hard gold 3″*3″；Flash gold(electroplated gold) 8″*10″；Immersion Tin 2″*4″；Immersion silver 2″*4″；OSP 2″*2″；|
|PCB thickness||HASL Lead 0.6-4.0mm；HASL Lead free 0.6-4.0mm；Flash gold 1.0-3.2mm；Hard gold 0.1-5.0mm；ENIG 0.2-7.0mm；Flash gold(electroplated gold) 0.15-5.0mm；Immersion Tin 0.4-5.0mm；Immersion silver 0.4-5.0mm；OSP 0.2-6.0mm|
|Max high to gold finger||1.5inch|
|Min space between gold fingers||6mil|
|Min block space to gold fingers||7.5mil|
|16||V-Cutting||Panel Size||500mm X 622 mm ( max. )||500mm X 800 mm ( max. )|
|Board Thickness||0.50 mm (20mil) min.||0.30 mm (12mil) min.|
|Remain Thickness||1/3 board thickness||0.40 +/-0.10mm( 16+/-4 mil )|
|Tolerance||±0.13 mm(5mil)||±0.1 mm(4mil)|
|Groove Width||0.50 mm (20mil) max.||0.38 mm (15mil) max.|
|Groove to Groove||20 mm (787mil) min.||10 mm (394mil) min.|
|Groove to Trace||0.45 mm(18mil) min.||0.38 mm(15mil) min.|
|17||Slot||Slot size tol.L≥2W||PTH Slot: L：+/-0.13(5mil) W：+/-0.08(3mil)||PTH Slot: L：+/-0.10(4mil) W：+/-0.05(2mil)|
|NPTH slot(mm) L+/-0.10 (4mil) W：+/-0.05(2mil)||NPTH slot(mm) L：+/-0.08 (3mil) W：+/-0.05(2mil)|
|18||Min Spacing from hole edge to hole edge||0.30-1.60 (Hole Diameter)||0.15mm(6mil)||0.10mm(4mil)|
|1.61-6.50 (Hole Diameter)||0.15mm(6mil)||0.13mm(5mil)|
|19||Min spacing between hole edge to circuitry pattern||PTH hole: 0.20mm(8mil)||PTH hole: 0.13mm(5mil)|
|NPTH hole: 0.18mm(7mil)||NPTH hole: 0.10mm(4mil)|
|20||Image transfer Registration tol||Circuit pattern vs.index hole||0.10(4mil)||0.08(3mil)|
|Circuit pattern vs.2nd drill hole||0.15(6mil)||0.10(4mil)|
|21||Registration tolerance of front/back image||0.075mm(3mil)||0.05mm(2mil)|
|22||Multilayers||Layer-layer misregistration||4layers:||0.15mm(6mil)max.||4layers:||0.10mm(4mil) max.|
|Min. Spacing from Hole Edge to Innerlayer Pattern||0.225mm(9mil)||0.15mm(6mil)|
|Min.Spacing from Outline to Innerlayer Pattern||0.38mm(15mil)||0.225mm(9mil)|
|Min. board thickness||4layers:0.30mm(12mil)||4layers:0.20mm(8mil)|
|Board thickness tolerance||4layers:+/-0.13mm(5mil)||4layers:+/-0.10mm(4mil)|
|8-12 layers:+/-0.20mm (8mil)||8-12 layers:+/-0.15mm (6mil)|
|26||Impedance control||±5ohm(＜50ohm), ±10%(≥50ohm)|
PCBTok offers flexible shipping methods for our customers, you may choose from one of the methods below.
DHL offers international express services in over 220 countries.
DHL partners with PCBTok and offers very competitive rates to customers of PCBTok.
It normally takes 3-7 business days for the package to be delivered around the world.
UPS gets the facts and figures about the world’s largest package delivery company and one of the leading global providers of specialized transportation and logistics services.
It normally takes 3-7 business days to deliver a package to most of the addresses in the world.
TNT has 56,000 employees in 61 countries.
It takes 4-9 business days to deliver the packages to the hands
of our customers.
FedEx offers delivery solutions for customers around the world.
It takes 4-7 business days to deliver the packages to the hands
of our customers.
5. Air, Sea/Air, and Sea
If your order is of large volume with PCBTok, you can also choose
to ship via air, sea/air combined, and sea when necessary.
Please contact your sales representative for shipping solutions.
Note: if you need others, please contact your sales representative for shipping solutions.
You can use the following payment methods:
Telegraphic Transfer(TT): A telegraphic transfer (TT) is an electronic method of transferring funds utilized primarily for overseas wire transactions. It’s very convenient to transfer.
Bank/Wire transfer: To pay by wire transfer using your bank account, you need to visit your nearest bank branch with the wire transfer information. Your payment will be completed 3-5 business days after you have finished the money transfer.
Paypal: Pay easily, fast and secure with PayPal. many other credit and debit cards via PayPal.
Credit Card: You can pay with a credit card: Visa, Visa Electron, MasterCard, Maestro.
“It’s my first-time ordering in this PCB Manufacturer because of my friend’s recommendation. Truthfully speaking, I was never been amazed with the outcomes of my desired products. I have sent them my layout and explained to them my preferences with my HDI PCB, and they managed to exceed my expectation towards it. If given a chance to purchase again a PCB, I will definitely come back here at PCBTok. They’re amazing with accommodating staffs. Very professional, I highly recommend them for your PCB works!”Maverick Miller, Computer Technician from Alabama, USA
“I’ve been purchasing my PCB products at PCBTok for quite a while now, almost a year to be exact. Recently, I’ve made a mistake with my layout, and I tried reaching out to them to inform my mistake. Guess what? They immediately responded and accommodated my errors. I’ve never been so satisfied purchasing with them. The services and products are top-notch.”Anastasia Lopez, Electric Engineer from Saskatchewan, Canada
“I’ve never been treated like this before; I was valued and my concepts were put into action here at PCBTok. I tried several other PCB manufacturers, but it’s my first time having a great experience while working with my layouts and product. They always respond to my queries even with the time difference that we have. I’ve just decided to continue purchasing my PCB products with them from now on. It’s been a pleasure working you PCBTok, looking forward with our next transactions!”Henry Jackson, Design Engineer from Adelaide, Australia
Heavy Copper PCB – The Completed FAQ Guide
Heavy copper PCB is a common electronic component due to its excellent heat dissipation properties and ability to combine complex switches and circuitry in a small space. For heavy copper PCBs, the market offers a variety of design options.
You may have some questions about heavy copper PCB, here you will find all the answers in this FAQ guide.
If you want to make a PCB, you might be wondering what heavy copper PCB is. The answer is dependent on the type of electronics you intend to use.
It is commonly found in power supplies for communications, medical equipment, industrial equipment, and alternative energy vehicles. Because these vehicles require a lot of electricity to operate, heavy copper PCBs are the ideal solution.
As society evolves, so does the demand for heavy copper PCBs. The metal is especially useful for electronic products with complex switches and high current levels, as well as for heat dissipation.
Double-sided and multilayer heavy copper PCB designs are the most common. This material, in addition to these common applications, allows for large layout structures and the implementation of multiple layers. Because of these two factors, it is a popular choice.
Because heavy copper traces are extremely expensive to produce, selecting a manufacturer with the necessary expertise and experience for your project is critical. If the wrong manufacturer is used, a high-quality product may not be produced, resulting in a costly project that cannot meet deadlines.
Copper PCB Sample
To find the best Heavy Copper PCB manufacturers, read customer reviews to see if other people are happy with their manufacturer’s work. This way, you can be certain that the manufacturer will provide exactly what you require.
If you’ve never heard of Heavy Copper PCB, you’re in luck! PCBTok provides these features. In this article, we’ll look at what heavy copper board has to offer and how it can benefit your company.
After all, copper is an excellent material for electronics, and using this type of PCB has numerous advantages. Learn about the various advantages of Heavy Copper boards for your next project.
The plating and etching processes are used to create heavy copper boards. Heavy copper is a thin sheet of copper foil laminated to FR4 or epoxy-based material. Its average weight per sheet is 4 ounces (140mm), making it thicker than standard copper PCBs.
Furthermore, they are composed of two layers of copper-plated on top of one another. Because these two layers are evenly spaced on the board, the thickness is uniform.
Bare Heavy Copper
Power supply systems benefit from the heavy copper PCB. Its high temperature and current resistance will keep it safe from frequent thermal cycling. This PCB can carry 200 watts of current and is suitable for high-power applications.
Its high thermal conductivity allows it to withstand repeated thermal cycles and even implement additional layers. Because of this, Heavy Copper PCB is a better choice for many applications. Its durability will only improve over time.
They can be used in a variety of devices due to their weight. These devices typically have high power and/or signal levels. They can also withstand higher currents and temperatures, allowing them to be used in high-power, tiny, high-performance circuits. A standard Heavy Copper PCB may contain up to 20 ounces of finished copper and six ounces of surface copper.
Heavy copper PCB is commonly used in military and aerospace applications. It is now also finding its way into industrial applications. In power supply and converter applications, their performance and durability are critical.
Here are a few advantages of using heavy copper PCB. All of these benefits make heavy copper PCB an excellent choice for a wide range of industrial applications. You may be wondering why heavy copper is used.
The high copper weight provides a dependable wiring platform and is an ideal substrate for through-hole circuitry. To achieve a thicker copper layer, this material can be fabricated using a variety of plating and etching techniques.
These layers are then plated onto the board’s sidewalls and holes to add thickness. This strengthens the circuit and qualifies it for high current and power applications.
Heavy copper boards’ increased heat resistance can result in lower power loss and heat generation. Another advantage is the thickness of the board surface. The thicker copper surface improves heat conduction and dissipation, contributing to the safety of electronic devices.
Heat sinks that are directly plated onto the board surface are also included with heavy copper boards. This is a great feature for a small board.
Benefits of Heavy Copper PCB
PCBs made of heavy copper are thicker than standard boards. Heavy copper PCBs are typically two ounces thick and contain 75 micrometers of copper. When the copper fill levels are low, these boards are prone to delamination.
Typically, the final thickness is 0.25mm thicker than the initial thickness. It is difficult to incorporate a heavy copper PCB into your circuit design, but it is possible to achieve high-quality results.
Heavy copper PCB design and production necessitate several complex processes, including multiple layers and etching. Copper foil sheets are used as the foundation for circuit layers, and copper plates are then plated through the holes and planes. The entire circuit is then laminated onto an epoxy-based substrate.
Heavy copper PCBs, as the name implies, necessitate a highly specialized pressing process. The copper layers are etched during this process to provide a variety of features that help improve circuit performance. They are also designed with empty areas in the pattern, and the edges have a single air guide groove to aid in the flow of solder paste and adhesive.
They are made in a different way than regular copper boards. The heavy copper plated vias transfer the most heat to the external heat sink.
Its high thermal capacity makes them suitable for demanding applications such as solar panels and welding equipment. The heavy copper plated vias ensure exceptional dependability and performance. You can find a heavy copper PCB manufacturer who can provide you with a variety of solutions.
The Heavy copper circuit plate is made of thicker copper and can accommodate high-current and control circuits. Heavy copper’s weight makes it a dependable wiring platform and an appropriate substrate for through-hole circuits. It also allows for the creation of smaller footprints and a lower layer count.
A heavy copper PCB, on the other hand, can support multiple layers of copper windings and can be as thick as 50 layers.
The main distinction between standard and heavy copper boards is found in the manufacturing process. Copper etching and plating methods are used to create standard PCBs.
On the other hand, it necessitates unique etching and plating techniques. The process raises the PCB’s overall cost and creates unevenly plated holes. They are more expensive and are only appropriate for specialized applications.
The primary distinction between heavy copper and standard PCBs is the amount of copper used in production. Heavy copper PCBs can carry hundreds of amperes, whereas standard PCBs can only support amps in the low double digits.
Heavy copper PCBs, as opposed to standard PCBs, can withstand higher temperatures and provide strong connections between components.
Another significant distinction between standard and heavy copper PCBs is the substrate material. Thicker substrate materials are required for heavy copper boards. Thick boards are more resistant to heat and can withstand higher temperatures than standard PCBs.
Difference Between Standard and Heavy Copper PCBs
Heavy copper PCBs can also have different copper weights in the same circuit layers. As a result, they are better suited for applications requiring thermal stability. This also aids in their size reduction.
Remember that thick copper-clad laminated board material will necessitate additional etching and plating techniques when designing a heavy copper circuit.
Heavy copper circuit boards were traditionally made by etching thick copper-clad laminated board material, which resulted in unacceptably uneven sidewalls and excessive undercutting. The process is now combined with etching and plating to produce a high-quality PCB with straight edges and good margins using advanced plating technology.
If you’re looking for a heavy copper PCB manufacturer, choose one specializing in heavy copper circuit boards. While this may appear to be a difficult task, it can save you significant time and money.
Here are a few things to think about before deciding on a manufacturer. You should be familiar with their facilities and their capabilities. Knowing where they are can significantly impact their efficiency and cost-effectiveness. Having multiple facilities provides you with more options and can reduce shipping time and costs.
The thickness of the copper is also an essential factor to consider. Heavy copper PCBs contain far more copper than standard printed circuit boards. Furthermore, because the components are burnt, they are more prone to faults. It’s critical to understand what you’re getting from a heavy copper PCB manufacturer so you can be confident you’re getting high-quality components.
For example, if your PCB is carrying a high current, the manufacturer’s copper should be thicker. This is because a PCB made of heavy copper has wider traces and a higher current rating.
When selecting a heavy copper circuit board manufacturer, ensure the company has the capabilities. You will send one trial project to test it and then decide whether you will choose it or not.