MSDS File
Introduction
Nickel Chromium Evaporation Materials (Ni/Cr), commonly referred to as NiCr alloys, are widely used for depositing resistive, adhesion, and protective thin films in microelectronics and precision coating systems. The Ni–Cr alloy system offers a balanced combination of electrical resistivity, oxidation resistance, and mechanical stability, making it a preferred material for thin film resistors and heating elements.
In vacuum deposition processes such as thermal and electron beam evaporation, compositional stability and alloy homogeneity are essential to ensure predictable electrical performance. Pre-alloyed Ni/Cr evaporation materials provide consistent vapor composition and reliable film characteristics across both laboratory-scale R&D and industrial production lines.
Detailed Description
Nickel (Ni) contributes good electrical conductivity and corrosion resistance, while chromium (Cr) enhances oxidation resistance and increases electrical resistivity. By adjusting the Ni/Cr ratio, film properties such as sheet resistance, temperature coefficient of resistance (TCR), and mechanical stability can be precisely controlled.
Key characteristics include:
Pre-Alloyed and Homogeneous Composition – Ensures stable evaporation behavior and consistent thin film resistivity.
Customizable Ni/Cr Ratios – Typical compositions include Ni80/Cr20, Ni70/Cr30, or other tailored formulations.
High Metal Purity (3N–5N typical) – Reduces contamination and improves film reliability.
Dense Microstructure – Minimizes particle generation and ensures uniform deposition.
Ni/Cr evaporation materials are supplied as pieces, granules, or pellets compatible with tungsten boats, molybdenum crucibles, or graphite liners. Due to differences in vapor pressure between nickel and chromium, controlled deposition parameters are recommended to maintain film stoichiometry and resistivity consistency.
NiCr thin films are well-known for their stable resistive properties and long-term reliability under thermal cycling conditions.
Applications
Nickel Chromium Evaporation Materials are widely used in:
Thin Film Resistors
Precision resistor networks in microelectronics and hybrid circuits.Heating Elements & Microheaters
Resistive layers in MEMS and sensor applications.Adhesion Layers
Underlayers for gold or copper films in electronic devices.Protective & Barrier Coatings
Oxidation-resistant metallic films.Research & Development
Alloy thin film studies and resistivity optimization projects.
Technical Parameters
| Parameter | Typical Value / Range | Importance |
|---|---|---|
| Purity | 99.9% – 99.999% (3N–5N) | Reduces impurities affecting resistivity |
| Composition | Custom Ni/Cr ratio (e.g., 80/20) | Controls sheet resistance & TCR |
| Form | Pieces / Granules / Pellets | Compatible with evaporation systems |
| Melting Range | ~1350–1450°C (composition-dependent) | Influences evaporation control |
| Density | ≥ 99% theoretical | Ensures uniform vaporization |
| Packaging | Vacuum-sealed / inert-packed | Prevents surface oxidation |
Comparison with Related Materials
| Material | Key Advantage | Typical Application |
|---|---|---|
| Nickel Chromium (Ni/Cr) | Stable resistivity & good oxidation resistance | Thin film resistors |
| Pure Nickel (Ni) | Higher conductivity | Conductive layers |
| Pure Chromium (Cr) | Strong adhesion & barrier performance | Adhesion layers |
| Tantalum Nitride (TaN) | Low TCR & high stability | Advanced resistor films |
Compared to pure nickel, Ni/Cr alloys offer higher and more stable resistivity. Compared to tantalum-based resistive materials, NiCr provides a cost-effective and widely adopted solution for precision thin film resistor applications.
FAQ
| Question | Answer |
|---|---|
| Can the Ni/Cr ratio be customized? | Yes, compositions can be tailored to meet specific sheet resistance and TCR requirements. |
| Is the material supplied pre-alloyed? | Yes, standard Ni/Cr evaporation materials are supplied as pre-alloyed alloys. |
| What deposition methods are suitable? | Compatible with both thermal and electron beam evaporation systems. |
| Are custom sizes available? | Yes, particle size and pellet dimensions can be customized based on equipment needs. |
| Which industries use NiCr films most? | Microelectronics, sensor manufacturing, resistor production, and advanced materials research. |
Packaging
Our Nickel Chromium Evaporation Materials are meticulously tagged and labeled externally to ensure efficient identification and maintain high standards of quality control. We take great care to prevent any potential damage during storage and transportation, ensuring the materials arrive in perfect condition.
Conclusion
Nickel Chromium Evaporation Materials (Ni/Cr) provide a reliable and compositionally flexible solution for depositing stable resistive and protective thin films. With customizable alloy ratios, high purity standards, and consistent evaporation performance, NiCr materials support demanding microelectronic and precision coating applications.
For detailed specifications and a quotation, please contact us at sales@thinfilmmaterials.com.
Ordering Table
New wpDataTable
| Material | Size | Quantity | Purity | Part Number |
| Nickel/Chromium | 1/4" Dia. x 1/4" Length | 100 g | 99.95% | EVMNICRQXQ-D |
| Nickel/Chromium | 1/4" Dia. x 1/4" Length | 500 g | 99.95% | EVMNICRQXQ-T |
| Nickel/Chromium | 1/8" Dia. x 1/8" Length | 400 g | 99.95% | EVMNICR35EXE-P |
| Nickel/Chromium | 1/8" Dia. x 1/8" Length | 25 g | 99.95% | EVMNICREXE-A |
| Nickel/Chromium | 1/8" Dia. x 1/8" Length | 50 g | 99.95% | EVMNICREXE-B |
| Nickel/Chromium | 1/8" Dia. x 1/8" Length | 100 g | 99.95% | EVMNICREXE-D |
| Nickel/Chromium | 1/8" Dia. x 1/8" Length | 300 g | 99.95% | EVMNICREXE-L |
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