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PCB Manufacturing
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3mm Prototype FR4 Heavy Copper PCB Manufacturing Assembly

3mm Prototype FR4 Heavy Copper PCB Manufacturing Assembly

MOQ: 1
Price: Send us Gerber file for free quotation
Payment Terms: T/T
Detail Information
Layer:
32 Layer
Base Material:
Fr4
Board Thickness:
3.0 Mm
Copper Thickness:
8OZ
Surface Treatment:
Immersion Gold
Min. Line Width/Space:
0.2/0.2mm
Application:
High Power Electrical Appliances
Certificate:
UL,IATF16949,ISO&Reach
Highlight:

3mm heavy copper pcb

,

FR4 heavy copper pcb

,

3mm prototype pcb assembly

Product Description

Thick Copper PCB Efficient Heat Conduction Heavy Copper PCB Manufacturing Assembly

 

♦ 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.

 

 

3mm Prototype FR4 Heavy Copper PCB Manufacturing Assembly 0 3mm Prototype FR4 Heavy Copper PCB Manufacturing Assembly 1 3mm Prototype FR4 Heavy Copper PCB Manufacturing Assembly 2

 

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

    • ​​Power supply equipment: high-power switching power supply, inverter, UPS, etc.
    • ​​Automotive electronics: electric vehicle motor controller, on-board charger, battery management system.
    • ​​Industrial control: motor driver, servo controller, welding equipment.
    • ​​New energy field: photovoltaic inverter, wind power converter.
    • High-power LED lighting: LED driver board that needs heat dissipation and current carrying

 

​​♦ Key Points for Thick Copper PCB Design

    • Line width and spacing​​: Due to the serious side etching during etching, the line width and spacing need to be larger. For example, when the inner layer is 2oz copper thick, the etching compensation is generally 2mil to avoid the line being too thin or open.
    • ​​Controlled depth drilling processing​​: The controlled depth drilling machine is used for precise drilling to ensure the compact layout and high performance of electronic components. It is used in the manufacturing of mobile phones, routers and other equipment.

 

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.

 
 
 
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Advantages of DQS Team
  1. On-time Delivery:  
    • Owned PCBA factories 15,000 ㎡
    • 13 fully automatic SMT lines 
    • 4 DIP assembly lines

 

     2. Quality Guaranteed:

    • IATF, ISO, IPC, UL standards 
    • Online SPI, AOI, X-Ray Inspection 
    • The qualified rate of products reach 99.9%

 

     3. Premium Service:

    • 24H reply your inquiry;
    • Perfect after-sales service system;
    • From prototype to mass production