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Copper Nickel Evaporation Materials

VD0624 Copper Nickel Evaporation Materials, Cu/Ni

Catalog No.VD0624
MaterialCopper Nickel (Cu/Ni)
Purity99.9% ~ 99.999%
ShapePowder/ Granule/ Custom-made

TFM specializes in producing high-purity copper nickel evaporation materials, utilizing rigorous quality assurance processes to ensure product reliability. Our copper nickel materials are available in various forms, including tablets, granules, pellets, and powders, to suit different application needs.

MSDS File

Introduction

Copper Nickel Evaporation Materials (Cu/Ni) are alloy-based sources designed for vacuum deposition processes requiring corrosion resistance, controlled electrical properties, and stable metallic film formation. By combining copper’s excellent conductivity with nickel’s mechanical strength and chemical stability, Cu/Ni alloys provide balanced performance in functional and decorative thin film applications.

Cu/Ni thin films are widely used in electronics, barrier layers, resistive films, and marine-grade coatings. High-purity evaporation materials ensure consistent alloy composition transfer during deposition, supporting uniform film performance across substrates.

Detailed Description

Copper Nickel alloys are typically produced through vacuum induction melting followed by casting and precision machining to ensure homogeneous microstructure and controlled composition. Common alloy ratios include:

  • Cu 70% / Ni 30%

  • Cu 80% / Ni 20%

  • Cu 90% / Ni 10%

  • Custom atomic or weight ratios upon request

Cu/Ni evaporation materials are available in:

  • Pellets

  • Granules

  • Small alloy pieces

  • Custom-cut slugs

With melting points generally between 1170–1240 °C (depending on composition), Cu/Ni alloys are suitable for both thermal evaporation and electron beam evaporation. Uniform alloy distribution ensures consistent vapor composition and reduces phase segregation during deposition.

Key performance characteristics include:

  • Good electrical conductivity (composition dependent)

  • Enhanced corrosion resistance compared to pure copper

  • Improved adhesion compared to pure nickel

  • Stable film formation in multilayer stacks

Cu/Ni films can also serve as diffusion barrier layers or intermediate adhesion layers in microelectronic structures.

Applications

Copper Nickel Evaporation Materials are commonly used in:

  • Resistive thin films and precision resistors

  • Barrier and adhesion layers in electronics

  • Corrosion-resistant coatings

  • Decorative metallic finishes

  • RF shielding and conductive coatings

  • Marine-related components

  • Research and prototyping of alloy thin films

In microelectronics, Cu/Ni films can provide improved oxidation resistance and mechanical stability compared to pure copper layers.

Technical Parameters

ParameterTypical Value / RangeImportance
CompositionCu/Ni (custom ratios)Controls conductivity & corrosion resistance
Purity99.9% – 99.99%Ensures stable alloy deposition
FormPellets / Granules / PiecesCompatible with crucibles
Melting Range~1170–1240 °CSuitable for thermal or e-beam evaporation
Density~8.9 g/cm³ (varies by ratio)Relevant for deposition rate calculation
Deposition MethodThermal / E-beamEnables uniform alloy thin films

Custom alloy ratios and forms can be supplied to match specific deposition systems.

Comparison with Related Alloy Materials

MaterialKey AdvantageTypical Application
Copper Nickel (Cu/Ni)Balanced conductivity & corrosion resistanceResistive & protective films
Pure CopperHigh electrical conductivityMetallization layers
Pure NickelStrong corrosion resistanceProtective coatings
Brass (Cu/Zn)Cost-effective alloyDecorative films

Compared to pure copper, Cu/Ni alloys offer better resistance to oxidation and environmental degradation. Compared to pure nickel, they provide improved electrical conductivity.

FAQ

QuestionAnswer
Can the Cu/Ni ratio be customized?Yes, both weight and atomic ratios can be tailored to meet film property requirements.
Is it suitable for thermal evaporation?Yes, depending on composition, it is compatible with thermal and e-beam systems.
Will the alloy composition remain consistent during evaporation?With proper process control, stable composition transfer can be achieved.
Is copper backing plate bonding required?Typically not required for evaporation materials, but custom configurations can be discussed.
Are material certificates provided?Yes, chemical composition and batch traceability documents are available.

Packaging

Our Copper Nickel Evaporation Materials are meticulously tagged and labeled externally to ensure efficient identification and maintain high standards of quality control. Materials are carefully packed in vacuum-sealed or moisture-resistant containers to prevent oxidation during storage and transportation.

Conclusion

Copper Nickel Evaporation Materials (Cu/Ni) provide a reliable alloy solution for conductive, corrosion-resistant, and functional thin film deposition. With customizable composition, controlled purity, and stable evaporation behavior, they support a broad range of electronic, industrial, and research applications.

For detailed specifications and a quotation, please contact us at sales@thinfilmmaterials.com.

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FAQ

  • They are high‐purity substances (e.g. metals, alloys, or compounds) used in thermal or electron‐beam evaporation processes to form thin films on substrates.

  • Typically, they’re processed into a form (often ingots, pellets, or wires) that can be efficiently vaporized. Preparation emphasizes high purity and controlled composition to ensure film quality.

  • Thermal evaporation and electron-beam (e-beam) evaporation are the two main techniques, where material is heated (or bombarded with electrons) until it vaporizes and then condenses on the substrate.

  • Thermal evaporation heats the material directly (often using a resistive heater), while e-beam evaporation uses a focused electron beam to locally heat and vaporize the source material—each method offering different control and energy efficiency.

  • Key parameters include source temperature, vacuum level, deposition rate, substrate temperature, and the distance between the source and the substrate. These factors influence film uniformity, adhesion, and microstructure.

  • Evaporation generally produces high-purity films with excellent control over thickness, and it is especially suitable for materials with relatively low melting points or high vapor pressures.

  • Challenges include issues with step coverage (due to line-of-sight deposition), shadowing effects on complex topographies, and possible re-evaporation of material from the substrate if temperature isn’t properly controlled.

  • Common evaporation materials include noble metals (e.g., gold, silver), semiconductors (e.g., silicon, germanium), metal oxides, and organic compounds—each chosen for its specific optical, electrical, or mechanical properties.

  • Selection depends on desired film properties (conductivity, optical transparency, adhesion), compatibility with the evaporation process, and the final device application (semiconductor, optical coating, etc.).

  • Optimizing substrate temperature, deposition rate, and chamber vacuum are critical for ensuring that the film adheres well and forms the intended microstructure without defects.

  • Troubleshooting may involve checking the source material’s purity, ensuring stable source temperature, verifying the vacuum level, adjusting the substrate’s position or temperature, and monitoring deposition rate fluctuations.

While evaporation tends to yield very high purity films with excellent thickness control, it is limited by its line-of-sight nature. In contrast, sputtering can deposit films more uniformly on complex surfaces and is more versatile for a broader range of materials.

 

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