Product Overview
Strontium Iron Oxide Sputtering Target (SrFe12O19) is a ceramic sputtering target used to deposit composition-specific oxide thin films. Compared with metallic targets, oxide targets are typically more sensitive to density, porosity, brittleness, thermal shock, and bonding design. In practice, target microstructure, thickness, cooling conditions, and the chosen sputtering mode can all affect arc stability, particle generation, and deposited-film performance.
Material and Deposition Characteristics
RF magnetron sputtering is commonly considered for insulating or semiconducting oxide targets, while sufficiently conductive formulations may allow alternative power modes in some systems. Target density and microstructural uniformity matter because pores, cracks, and local inhomogeneities can contribute to unstable plasma, particles, or target damage. For brittle ceramics, bonded assemblies and gradual power ramping are often worth evaluating.
Technical Data
| Parameter | Typical Value / Range | Importance |
|---|---|---|
| Purity | 99.9% – 99.99% | Ensures consistent magnetic and structural properties |
| Composition | SrFe₁₂O₁₉ (Strontium Hexaferrite) | Maintains correct magnetic phase |
| Density | ≥ 95% theoretical density | Ensures stable sputtering performance |
| Diameter | 25 – 200 mm (custom available) | Compatible with sputtering systems |
| Thickness | 3 – 6 mm | Influences sputtering lifetime |
| Bonding | Copper backing plate optional | Improves heat dissipation during sputtering |
| Material | Key Advantage | Typical Application |
|---|---|---|
| Strontium Iron Oxide (SrFe₁₂O₁₉) | High coercivity and magnetic anisotropy | Magnetic thin films and microwave devices |
| Barium Ferrite (BaFe₁₂O₁₉) | Strong magnetic properties | Magnetic storage media |
| Iron Oxide (Fe₃O₄) | Good magnetic conductivity | Magnetic sensors |
| Yttrium Iron Garnet (YIG) | Excellent microwave magnetic properties | Microwave and spintronic devices |
| Question | Answer |
|---|---|
| What sputtering method is suitable for SrFe₁₂O₁₉ targets? | RF magnetron sputtering is typically used because SrFe₁₂O₁₉ is a ceramic oxide material. |
| Can SrFe₁₂O₁₉ sputtering targets be customized? | Yes, target diameter, thickness, density, and bonding options can be customized. |
| What substrates are commonly used for SrFe₁₂O₁₉ thin films? | Common substrates include sapphire, MgO, SrTiO₃, and silicon wafers. |
| What makes SrFe₁₂O₁₉ suitable for magnetic thin films? | Its hexagonal crystal structure provides high coercivity and strong magnetic anisotropy. |
| Are bonded targets available? | Yes, targets can be bonded to copper backing plates for improved thermal management during sputtering. |
Typical Thin-Film Applications
- Dielectric, insulating, optical, magnetic, protective, or functional ceramic thin films
- Semiconductor, sensor, photonic, and multilayer coating research
- Applications where oxide composition, density, and process stability affect film performance
Target Configuration and Ordering Considerations
When requesting a quotation, provide target diameter or rectangular dimensions, thickness, purity or composition, required quantity, and whether a backing plate or bonded assembly is needed. For brittle ceramic or compound targets, it is useful to specify the cathode model, backing-plate material, preferred bonding method, operating power if known, and any density, tolerance, or inspection-document requirements. TFM can review drawings, old-target photos, and application details when custom dimensions are required.
Frequently Asked Questions
Is Strontium Iron Oxide better suited to RF or DC sputtering?
RF magnetron sputtering is commonly considered for insulating or semiconducting oxide targets. If a specific formulation is sufficiently conductive, other modes may also be possible, but the equipment and target properties should be confirmed.
Why is density important for a Strontium Iron Oxide target?
Density and microstructural uniformity affect erosion stability, thermal behavior, and particle risk. Pores, cracks, or local density variations can contribute to unstable sputtering and target damage.
Should a Strontium Iron Oxide target be bonded to a backing plate?
Bonding is often useful for brittle oxide targets because it can improve mechanical support and heat transfer. The backing material and bonding method should be chosen according to target size, thickness, and operating conditions.
Will the deposited film always have the same composition as SrFe12O19?
Not always. Film composition can be affected by preferential sputtering, reactive gas, substrate temperature, re-sputtering, and chamber conditions. Composition-sensitive films should be verified after deposition.
How should power be ramped on a brittle Strontium Iron Oxide target?
A conservative power ramp and stable cooling are generally advisable. The exact operating procedure should follow the target size, bonding condition, cathode design, and supplier recommendations rather than a universal wattage.
What information should I provide when ordering Strontium Iron Oxide?
Provide formula or composition, purity, dimensions, quantity, backing and bonding requirements, cathode model or drawing, and any density, tolerance, or inspection requirements.
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