High-Purity 300mm Cr Target from China Suppliers and Factory for Precision Applications and Coatings
Characteristics
Film Properties
- Strong adhesion: The chromium film has a strong bond with glass, metal, and polymer substrates, making it an ideal adhesion layer material.
- Hardness and wear resistance: The film hardness can reach 800-1000 HV, which significantly improves the scratch resistance of the device surface.
- Corrosion resistance: Stable in humid, salt spray and acidic environments, widely used in protective coatings.
Efficient Sputtering Performance
- High sputtering rate: High density (≥7.2 g/cm³) and low oxygen content (≤500 ppm) improve the deposition efficiency.
- Uniform and dense film formation: The grain size is small (≤30μm), and the film thickness is unevenly distributed ≤5%, which is suitable for coating large substrates.
- Low particle defects: Ultra-high purity (≥99.95%) reduces particulate contamination during sputtering.
Compatibility of Chemistry & Technology
- Oxidation resistance: Forms a dense Cr₂O₃ passivation layer in the air to protect the underlying material.
- Low-temperature deposition capacity: Can form a film at a low temperature of ≤150°C, compatible with heat-sensitive substrates such as plastics.
- Excellent etching characteristics: High selectivity with photoresist etching, simple graphic process.
Frequently Asked Questions
Q1: What are the primary adhesion benefits of Chromium (Cr) films?
Chromium films exhibit exceptionally strong adhesion with glass, metal, and polymer substrates, serving as a highly effective adhesion layer material.
Q2: How hard and wear-resistant are these films?
The film hardness can reach 800-1000 HV, which significantly enhances the scratch resistance of device surfaces and protects them from wear.
Q3: How does the sputtering performance maintain high efficiency?
Deposition efficiency is optimized through a high density of ≥7.2 g/cm³ and a low oxygen content of ≤500 ppm, while ultra-high purity (≥99.95%) minimizes particulate contamination.
Q4: Are these films suitable for heat-sensitive materials?
Yes. Because the film can be deposited at low temperatures of ≤150°C, it is fully compatible with heat-sensitive substrates, including various plastics.
Q5: How do Chromium films prevent corrosion and oxidation?
They remain highly stable in humid, salt spray, and acidic environments. Additionally, they form a dense Cr₂O₃ passivation layer in the air to shield the underlying material from oxidation.
Q6: What makes them suitable for coating large substrates?
They offer uniform and dense film formation with a small grain size (≤30μm) and a film thickness unevenness distribution of ≤5%, making them ideal for large-scale coatings.