Advantages

Heavy Copper PCB Manufacturing Advantage

Heavy Copper PCB Manufacturing Advantage provides enhanced current capacity, superior heat dissipation, and robust structural reliability for demanding power, automotive, and industrial applications.

In-house Integration

In-house Integration enables complete control of heavy copper PCB fabrication, ensuring process consistency, faster turnaround, and reliable quality for high-current and power applications.

Complete in-house production

Faster order turnaround

Stable process consistency

Enhanced quality control

Reliable delivery capability

Advanced Equipment

Advanced Equipment supports precise heavy copper processing, ensuring consistent copper thickness, reliable plating quality, and stable production capability for high-current PCB applications.

Precision copper processing

Stable plating capability

High-current PCB expertise

Consistent production quality

Advanced manufacturing systems

High-Mix, Low-Volume

High-Mix, Low-Volume production supports diverse heavy copper PCB requirements with flexible scheduling, rapid response, and reliable quality for prototype and specialized applications.

Flexible production scheduling

Rapid prototype support

Small-batch manufacturing

Diverse product capability

Reliable delivery performance

Production Excellence

Advanced Heavy Copper PCB Production Excellence

Advanced Heavy Copper PCB Production Excellence delivers precise thick copper processing, superior thermal performance, and stable fabrication capability for demanding high-current and power applications.

Resin Flow Control during Lamination

Resin Flow Control during Lamination ensures uniform bonding and reliable layer integrity in heavy copper PCB.

01

Extra-thick Plating

Extra-thick Plating ensures uniform copper buildup and stable performance in high-current applications.

02

Voltage Resistance Control

Voltage Resistance Control ensures reliable insulation and stable performance in high-power heavy copper PCB.

03

Precision Etching

Precision Etching delivers controlled trace geometry and reliable performance for heavy copper applications.

04

Advanced HDI PCB Production Excellence

Manufacturing Capability

Heavy Copper Manufacturing Capability

Heavy Copper PCB Manufacturing Capability delivers robust copper processing, stable fabrication control, and dependable performance for demanding power and industrial systems.

Item

Capability

Layer Count

2–20 Layers

Board Thickness

0.5–6.0 mm

Finished Copper Thickness

1–20 oz

Min Trace Width/Space

2.5/2.5 mil

Min Mechanical Hole Size

0.15 mm

Hole Tolerance

±0.05 mm

Aspect Ratio

20:1

Surface Finish

HASL, Lead-free HASL, ENIG, OSP, Immersion Tin

Panel Size

Max. 600 × 1200 mm

Material System

FR4 Tg150/Tg170/Tg180

Impedance Control

±5%

IPC Standard

IPC Class 2 / Class 3

UL Certification

Yes

RoHS Compliance

Yes

Item

Capability

Inner Layer Copper Weight

Up to 10 oz

Outer Layer Copper Weight

Up to 20 oz

Finished Copper Thickness

Up to 700 μm

Min Trace Width (1 oz Cu)

2.5 mil

Min Trace Width (3 oz Cu)

6 mil

Copper-to-Copper Spacing

≥8 mil

High Aspect Ratio Plating

Available

Through Hole Copper Thickness

≥25 μm

Via Filling

Available

Resin Plugging

Available

Sequential Lamination

Available

Copper Coin Technology

Available

Embedded Copper Block

Available

Heat Sink Integration

Available

Back Drilling

Available

Heavy Copper Edge Plating

Available

Thermal Management Design

Available

The table above only lists process parameters for HDI PCB products. Please download the full process manual.

Quality Control

Quality Control of Heavy Copper PCB

Quality Control of Heavy Copper PCB utilizes AOI, X-ray inspection, and electrical testing to ensure stable copper structures, reliable insulation, and consistent performance in power applications.

Quality Control Equipment

Quality Control Equipment integrates AOI, X-ray, microsection inspection, and electrical testing to verify copper thickness, insulation reliability, and structural stability.

Time Domain Reflectometry

Time Domain Reflectometry (TDR) verifies impedance continuity and detects signal discontinuities, ensuring stable electrical performance and reliable transmission in heavy copper PCB applications.

Power Signal Analysis

Vector Network Analyzer (VNA) testing verifies impedance stability, insertion loss, and return loss to ensure heavy copper PCB maintain reliable signal performance in high-current applications.

Automated Optical Inspection

Automated Optical Inspection (AOI) detects pattern defects, trace deviations, and surface imperfections, ensuring consistent quality and reliable performance in heavy copper PCB manufacturing.

Cross-Section Inspection

Cross-Section Inspection evaluates copper thickness, plating quality, and layer integrity, ensuring reliable structures and consistent electrical performance in heavy copper PCB manufacturing.

Quality Control Equipment

Quality Standard Certificates demonstrate adherence to ISO, IPC, and RoHS standards, ensuring Heavy Copper PCB products achieve controlled manufacturing processes, verified electrical performance, and consistent industrial reliability.

IS0 9001:2015

stepping stone

The most fundamental and universally applicable quality management systemcertification.

IPC A 610

Industry Standard

The most authoritative international standard for the acceptance of electronic assembly and PCB manufacturing.

IATF 16949:2016

Automotive-grade (high gold content)

Demonstrate the capability to manufacture highly reliable automotive PCB.

ISO 13485

Medical-grade (high gold content)

Demonstrate the capability to manufacture high-precision PCB for medical equipment.

ISO14001:2015

Environmental system

Green factory certification is highly valued by major manufacturers and overseas clients.

UL

Safety Certification

Mandatory safety and flame-retardant standards for entering the North American market.

RoHS

Environmental regulations

Restriction of Hazardous Substances (RoHS) Directive (a standard requirement for electronic products exported to the EU).

REACH

Environmental regulations

EU Regulation on the Registration, Evaluation, Authorisation and Restriction of Chemicals.

certifications-info

IS0 9001:2015

01

IPC A 610

02

IATF 16949:2016

03

ISO 13485

04

ISO14001:2015

05

UL

06

RoHS

07

REACH

08

Applications

Heavy Copper PCB Application

Heavy Copper PCB Application covers power electronics, automotive systems, industrial drives, renewable energy, and high-current modules requiring superior thermal management and reliable conductivity.

01

Power Electronics Systems

02

Automotive Electronics

03

Renewable Energy Systems

04

Power Distribution Modules

05

Industrial Control Systems

01

Power Electronics Systems

Heavy Copper PCB Application in power electronics ensures high current carrying capacity, stable thermal management, and reliable operation for converters, inverters, and industrial power modules.

02

Automotive Electronics

Heavy Copper PCB Application in automotive systems supports EV power control, battery management, and motor drives with robust thermal dissipation and long-term electrical reliability.

03

Renewable Energy Systems

Heavy Copper PCB Application in renewable energy enables stable performance in solar inverters, wind power controllers, and energy storage systems requiring high current handling.

04

Power Distribution Modules

Heavy Copper PCB Application in power distribution ensures efficient current transfer, reduced heat buildup, and stable conductivity for high-load electrical systems.

05

Industrial Control Systems

Heavy Copper PCB Application in industrial control provides durable circuit performance, high power stability, and reliable operation in automation and heavy machinery environments.

FAQ

Heavy Copper PCB FAQ

Heavy Copper PCB FAQ covers fabrication capabilities, copper weight options, thermal performance, inspection standards, and application suitability for high-current electronic systems.

Q1

What copper thickness can be achieved in Heavy Copper PCB?

Heavy Copper PCB can support high copper weights through controlled plating and lamination processes for power applications.

Q2

What industries use Heavy Copper PCB?

They are widely used in automotive, industrial power systems, renewable energy, and high-current electronic modules.

Q3

How is quality ensured in Heavy Copper PCB production?

Quality is ensured through strict process control, AOI, X-ray inspection, microsection analysis, and electrical testing.

Q4

What are the main advantages of Heavy Copper PCB?

They provide superior current carrying capability, enhanced thermal management, and improved mechanical reliability.

Solutions

Heavy Copper PCB Solutions

Heavy Copper PCB Solutions provide robust copper structures, efficient heat dissipation, and stable electrical performance for demanding power conversion and industrial electronic systems.

PCB Manufacturing Capabilities-2

Title of the Article Details Page

h2 Add Your Heading Text Here Advanced battery systems maximize energy utilization by efficiently storing and distributing power, reducing energy waste and improving overall performance.Advanced battery systems maximize energy utilization by efficiently storing and distributing power, reducing energy waste and improving overall performance.Advanced battery systems maximize energy utilization by efficiently storing and distributing power, reducing […]

Read More

LT CIRCUIT EMS Multimedia Center

Title of the Article Details Page

Read More

Aerospace PCB Application Showcase-1

Title of the Article Details Page

Read More

Contact Our Team

LT CIRCUIT Knowledge Base delivers practical PCB and PCBA knowledge, covering fabrication processes, assembly techniques, materials, and quality control for better engineering decisions.

*We respect your confidentiality and all information is protected.

CONTACT US FOR EXPERT CONSULTATION

Let us know your requirement. We will connect best products with you.

*We respect your confidentiality and all information is protected.

Download Now

Complete the form below to access your download instantly.

*We respect your confidentiality and all information is protected.