- +8613603056883
- Dongguan City, Guangdong Province, China.
Precision Copper Etching for Electronics, Thermal, and Industrial Applications
Copper etching is a chemical process that removes material from copper sheets to create precise patterns, circuits, and components. Instead of cutting or stamping the metal, we use controlled chemical solutions to selectively dissolve copper, leaving behind your exact design.
This process keeps the metal free from mechanical stress, heat damage, and burrs, common issues with traditional manufacturing methods. The result is smooth edges, accurate dimensions, and components that maintain copper’s natural strength and conductivity.
We combine advanced equipment with proven processes to deliver copper components that meet your exact specifications:
From ultra-thin 0.05 mm foils to robust 2.5 mm plates, we handle the full spectrum of copper thicknesses for any application.
Our facilities accommodate parts up to 1500 mm × 600 mm, suitable for both compact electronics and large industrial components.
Single-sided, double-sided, or multi-depth etching available to match your design needs.
With 5 fully automated etching lines, we produce up to 4,500 m² monthly, handling everything from prototypes to volume production.
| Alloy | Composition | Properties | Suitability for Chemical Etching |
|---|---|---|---|
| C11000 | 99.9% Cu | High electrical and thermal conductivity, malleability | Excellent |
| C26000 (Cartridge Brass) | 70% Cu, 30% Zn | Good machinability, corrosion resistance | Excellent |
| C28000 (Muntz Metal) | 60% Cu, 40% Zn | Good corrosion resistance (especially in marine env.) | Excellent |
| C35300 (High Leaded Brass) | Cu, Zn, Pb | Improved machinability | Good with proper conditions |
| C36000 (Free-Cutting Brass) | 60% Cu, 40% Zn | Excellent machinability | Good with proper conditions |
| C46400 (Naval Brass) | 60% Cu, 39.2% Zn, 0.8% Sn | Good corrosion resistance (especially in seawater) | Excellent |
| C51000 (Phosphor Bronze) | Cu, Sn, P | Good corrosion resistance, high strength | Excellent |
| C54400 (Phosphor Bronze) | Cu, Sn, P | Excellent corrosion resistance, high strength | Excellent |
| C70600 (Cu-Ni 90/10) | 90% Cu, 10% Ni | Excellent corrosion resistance (especially in seawater) | Good |
| C71500 (Cu-Ni 70/30) | 70% Cu, 30% Ni | Good corrosion resistance, high strength | Good |
| C75200 (Cu-Ni-Silver) | Cu, Ni, Ag | Good corrosion resistance, electrical conductivity | Good |
Our copper etching produces components for a wide range of industries and applications:
Fine-pitch circuits and flexible boards for electronics.
Precision frames for semiconductor packaging.
Heat exchangers, cooling plates, and thermal spreaders.
Lightweight electromagnetic shielding for sensitive devices.
Contacts, springs, connectors, and battery terminals.
Nameplates, logos, jewelry, and architectural details.
Precision copper parts and conductive components for photovoltaic cells and solar modules.
Application-specific components made to your drawings and specifications.
Copper provides excellent electrical and thermal conductivity, making it ideal for circuits, power components, and heat dissipation.
Chemical etching creates clean edges without the rough burrs left by stamping or cutting, eliminating secondary finishing.
Create complex shapes, fine details, and intricate patterns without expensive tooling or design limitations.
Unlike laser cutting or machining, etching doesn’t create heat-affected zones that can weaken the material or change its properties.
Achieve the precision your application needs, with tolerances as tight as ±0.03 mm.
The same process works for single prototypes or thousands of parts, with consistent quality throughout.
Copper provides excellent electrical and thermal conductivity, making it ideal for circuits, power components, and heat dissipation.
Create complex shapes, fine details, and intricate patterns without expensive tooling or design limitations.
Unlike laser cutting or machining, etching doesn’t create heat-affected zones that can weaken the material or change its properties.
Achieve the precision your application needs, with tolerances as tight as ±0.03 mm.
The same process works for single prototypes or thousands of parts, with consistent quality throughout.
Copper provides excellent electrical and thermal conductivity, making it ideal for circuits, power components, and heat dissipation.
Chemical etching creates clean edges without the rough burrs left by stamping or cutting, eliminating secondary finishing.
Create complex shapes, fine details, and intricate patterns without expensive tooling or design limitations.
Unlike laser cutting or machining, etching doesn’t create heat-affected zones that can weaken the material or change its properties.
Achieve the precision your application needs, with tolerances as tight as ±0.03 mm.
The same process works for single prototypes or thousands of parts, with consistent quality throughout.
We follow a proven process that ensures precision and consistency from start to finish:
We choose the right copper grade or alloy from our inventory to match your application.
Copper sheets are cleaned thoroughly to ensure uniform etching results.
A light-sensitive layer is applied to protect areas that should not be etched.
Your design is transferred onto the photoresist using precision UV exposure.
The photoresist is developed to expose the copper areas designated for removal.
Controlled chemical solutions selectively dissolve the exposed copper, creating your design.
The photoresist is removed, and parts are cleaned to reveal the finished pattern.
Every component is checked using 2D vision inspection and documented with FAI and OQC reports.
When you partner with TMNetch, you’re working with a team that combines precision with advanced manufacturing capabilities. We can bring your copper designs to life exactly as you envision them.
To prevent oxidation and enhance durability, we offer several finishing options, including plating, organic coating, polishing, and custom treatments.
With tolerances down to ±0.03 mm and comprehensive inspection, we meet the requirements of demanding industries like electronics and automotive.
We maintain a large inventory of pure copper and specialized alloys, so we can match your exact specifications.
We can handle complex geometries and fine details without tooling costs or manufacturing constraints.
We’re here to give you a personalized solution for your project. Kindly fill in the below form to reach us and get exclusive offers!
You’re welcome to visit anytime during our working hours. Please email us in advance at lydia.sales1@tmnetch.com or tmnetch@gmail.com, and we’ll arrange to pick you up from Shenzhen, Guangzhou, or Hong Kong airport.
We are a factory.
If the goods are in stock, it usually takes 5–10 days. If the goods are not in stock, it generally takes 15–20 days, depending on the order quantity.
Yes, we can provide samples free of charge. However, the customer is responsible for the shipping cost.
For orders ≤ $2,000 USD, full payment in advance is required. For orders ≥ $2,000 USD, 50% T/T in advance and the balance before shipment.
