Civen Metal Material (Shanghai) Co., Ltd. is one of the leading manufacturers and suppliers of high-precision ra copper foil in China. Welcome to buy bulk durable high-precision ra copper foil made in China here from our factory. If you have any enquiry about cooperation, please feel free to email us.
Product Introduction
High-Precision RA Copper Foil is produced through controlled rolling and annealing processes to achieve consistent material thickness, surface condition, flatness, and mechanical performance. The material is processed and packaged in a dust-free environment to maintain the cleanliness required for high-end electronic production.
The foil is also available with degreasing and anti-oxidation treatment. This surface condition helps improve storage stability and supports lamination with other materials during subsequent manufacturing processes.
As part of the broader RA Copper Foil range, High-Precision RA Copper Foil is available for applications where material precision and processing consistency are important.
Base Material
Copper Grade
The base material is C11000 copper with a copper purity of Cu >99.99%.
Material Purity
The high copper purity supports applications requiring stable electrical and mechanical characteristics and a clean material surface.
Surface Preparation
The high-precision copper foil can be degreased and anti-oxidized to improve surface cleanliness, storage stability, and compatibility with subsequent lamination processes.
Performance
High Flexibility
The foil provides high flexibility for applications where the copper layer needs to withstand bending or forming during downstream processing.
Surface Flatness
A uniform and flat copper foil surface supports consistent contact and processing during lamination and other material-handling operations.
High Elongation
The material provides high elongation, supporting applications where the foil needs to accommodate deformation without premature failure.
Fatigue Resistance
Good fatigue resistance makes the foil suitable for applications involving repeated mechanical movement or bending.
Oxidation Resistance
Strong oxidation resistance helps maintain surface condition during storage and subsequent processing.
Mechanical Properties
The combination of flexibility, elongation, fatigue resistance, and mechanical stability allows the foil to be considered for precision electronic and industrial applications.
Technical Specifications
| Parameter | Specification |
|---|---|
| Base Material | C11000 Copper |
| Copper Purity | Cu >99.99% |
| Thickness Range | 0.009–0.1 mm (0.0003–0.004 inch) |
| Width Range | 150–650.0 mm (5.9–25.6 inch) |
| Surface Condition | Degreased and anti-oxidized options available |
| Material Form | Rolled copper foil |
For applications requiring a thinner standard rolled copper foil, 9μm Standard RA Copper Foil is available as a separate product option. For a thicker high-precision specification, 35μm High-Precision RA Copper Foil is also available.
Production & Quality Control
Controlled Rolling
The rolling process is controlled to maintain the required foil thickness, surface condition, flatness, and dimensional consistency.
Annealing
Controlled annealing is used to regulate the material structure and mechanical characteristics of the rolled copper foil.
Surface Preparation
Degreasing and anti-oxidation treatment can be applied to improve surface cleanliness and oxidation resistance before storage or subsequent processing.
Clean Manufacturing Environment
The material is manufactured and packaged in a dust-free room to maintain a high level of product cleanliness for high-end electronic production environments.
Quality Monitoring
High-precision rolled copper foil products are controlled and monitored according to international production standards, with inspection focused on material consistency, surface quality, dimensional accuracy, and overall product condition.
Applications
High-End Electronic Components
High-Precision RA Copper Foil is suitable for high-end electronic components where copper purity, surface quality, flatness, and dimensional control are important.
Circuit Boards
The foil can be used as a conductive material in circuit board manufacturing where controlled foil dimensions and consistent surface characteristics are required.
Battery Components
Its high purity, flexibility, and mechanical properties make the foil suitable for selected battery-related applications where a rolled copper substrate is required.
Shielding Materials
The foil can be used in electromagnetic shielding structures that require a thin, conductive, and mechanically flexible copper material.
Heat Dissipation Materials
High-precision copper foil can be used as a heat-conductive material in heat dissipation structures and related components.
Conductive Materials
The combination of high copper purity and controlled material characteristics makes the foil suitable for conductive components used in electronic and electrical applications.
Precision Radiator Applications
The current product specification also identifies high-precision radiator foil as a material for manufacturing applications involving automobiles, agricultural machinery, mining machinery, engineering machinery, diesel locomotives, ships, and generator sets.
Available Configurations
Thickness
The available thickness range is 0.009–0.1 mm, covering thin-gauge and thicker rolled copper foil requirements.
Width
The available width range is 150–650.0 mm. Width selection can be matched to the customer's downstream processing and material-handling requirements.
Surface Condition
Degreasing and anti-oxidation treatment are available for applications requiring improved surface cleanliness and oxidation resistance.
Processing Requirements
When requesting a quotation, the required thickness, width, surface condition, application, and downstream processing requirements should be specified so that the appropriate material configuration can be evaluated.
Packaging & Delivery
High-Precision RA Copper Foil is manufactured and packaged in a dust-free environment to maintain product cleanliness before shipment.
The foil should be protected from contamination, moisture, and surface oxidation during storage and transportation. Packaging configuration can be arranged according to the foil dimensions, roll configuration, and shipping requirements.
Why CIVEN Metal
CIVEN METAL produces and supplies rolled copper foil for electronic, electrical, industrial, and other precision material applications.
For High-Precision RA Copper Foil, the production process focuses on copper purity, surface condition, flatness, dimensional control, flexibility, and mechanical performance.
The material is manufactured and packaged in a dust-free environment, while production and quality control are monitored according to international production standards.
Technical material information and product specifications can be evaluated according to the customer's required thickness, width, surface condition, and downstream processing requirements.
FAQ
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