DQS Electronic Co., Limited
| Payment Terms | T/T |
| Layer | 10 Layer |
| Material | Fr4 |
| Thickness | 1.2mm |
| Copper Thickness | 4OZ |
| Surface Treatment | ENIG |
| Min. Line Width/Space | 0.2/0.2mm |
| Application | High power electrical appliances |
| Certificate | UL,IATF16949,ISO&Reach |
View Detail Information
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Product Specification
| Payment Terms | T/T | Layer | 10 Layer |
| Material | Fr4 | Thickness | 1.2mm |
| Copper Thickness | 4OZ | Surface Treatment | ENIG |
| Min. Line Width/Space | 0.2/0.2mm | Application | High power electrical appliances |
| Certificate | UL,IATF16949,ISO&Reach | ||
| High Light | ENIG Thick Copper PCB ，ODM Thick Copper PCB ，ENIG 4 oz copper pcb | ||
ENIG Thick Copper PCB Highly Efficient Thermal Conduction Inverter
♦ What is Thick copper PCB?
Thick copper PCB refers to a circuit board formed by bonding a layer of copper foil with a thickness of 2 ounces (oz, about 62.5 microns) or more to FR-4 or other substrates during the printed circuit board (PCB) manufacturing process.
♦ Features of Thick Copper PCB
Excellent conductivity: Thick copper improves current flow, lowers resistance, supports high-power/high-frequency circuits, and boosts speed/reliability.
Strong load capacity: Thicker foil increases rigidity, resists pressure/bending/thermal stress, and suits harsh environments.
Efficient heat dissipation: Rapid heat spreading reduces thermal stress, ensures stable operation of high-power devices, and extends lifespan.
High thermal stability: Minimizes heat buildup, maintaining performance at high temperatures.
Design flexibility: Enables wider traces and tighter spacing for complex/high-density circuits.
♦ Applications of Thick Copper PCB
♦ Copper Thickness Selection Basis
1-2oz: conventional power modules, medium current circuits (<50A).
3-4oz: high power LED drivers, inverters (50-100A).
5oz and above: electric vehicle inverters, photovoltaic combiner boxes (>100A).
♦ Technical Parameters
| Item | Specification |
| Laers | 1~32 |
| Board thickness | 0.1mm-7.0mm |
| Material | FR-4,CEM-1/CEM-3,PI,High Tg,Rogers |
| Max panel size | 32"×48"(800mm×1200mm) |
| Min hole size | 0.075mm |
| Min line width | 3mil(0.075mm) |
| Surface finish | OSP,HASL,Imm Gold/Nickel/Ag, Electric gold |
| Copper thickness | 0.5-7.0OZ |
| Soldermask | Green/Yellow/Black/White/Red/Blue |
| Silkscreen | Red/Yellow/Black/White |
| Min PAD | 5mil(0.13mm) |
| Inter package | Vacuum |
| Outer package | Carton |
| Outline tolerance | ±0.75mm |
| Hole tolerance | PTH:±0.05 NPTH:±0.025 |
| Certificate | UL,ISO 9001,ISO14001,IATF16949 |
| Special request | Blind hole+Gold finger + BGA |
| Material Suppilers | Shengyi, KB, Nanya, ITEQ,etc. |
Company Details
Business Type:
Manufacturer
Employee Number:
>800
Ecer Certification：
Verified Supplier
DQS Electronic is located in Shenzhen, focusing on PCB Layout Design, PCB Fabrication, Electronic Components Sourcing, SMT, PCB Assembly and Testing. We are a one-stop EMS electronic manufacturing company committed to providing global customers with rapid prototyping and mass production. Our produ... DQS Electronic is located in Shenzhen, focusing on PCB Layout Design, PCB Fabrication, Electronic Components Sourcing, SMT, PCB Assembly and Testing. We are a one-stop EMS electronic manufacturing company committed to providing global customers with rapid prototyping and mass production. Our produ...
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