Product Overview
Erbium Oxide Sputtering Target (Er2O3) 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% | Higher purity improves optical transparency and film performance |
| Density | ≥95% theoretical | Higher density improves sputtering stability and target lifetime |
| Diameter | 25 – 300 mm (custom) | Compatible with various sputtering systems |
| Thickness | 3 – 6 mm | Influences sputtering rate and film uniformity |
| Bonding | Copper / Titanium backing plate (optional) | Improves heat transfer and mechanical stability |
| Material | Key Advantage | Typical Application |
|---|---|---|
| Erbium Oxide (Er₂O₃) | Strong infrared luminescence at 1.55 μm | Optical amplifiers and photonic devices |
| Yttrium Oxide (Y₂O₃) | Excellent dielectric properties | Protective and optical coatings |
| Lanthanum Oxide (La₂O₃) | High refractive index | Optical and electronic thin films |
| Question | Answer |
|---|---|
| Can the Er₂O₃ sputtering target be customized? | Yes, diameter, thickness, purity, and bonding options can be customized based on deposition system requirements. |
| What sputtering method is recommended for Er₂O₃ targets? | RF magnetron sputtering is commonly used for ceramic oxide targets to maintain stable plasma conditions. |
| Are bonded targets available? | Yes, erbium oxide targets can be indium-bonded or elastomer-bonded to copper backing plates for better thermal management. |
| What substrates are commonly used with Er₂O₃ films? | Silicon wafers, quartz, sapphire, glass, and oxide substrates are commonly used depending on the application. |
| Which industries use erbium oxide sputtering targets most frequently? | Optical communications, semiconductor manufacturing, photonics research, and advanced optical coating industries. |
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 Erbium 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 Erbium 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 Erbium 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 Er2O3?
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 Erbium 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 Erbium 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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