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Indium (In) Evaporation Material, Pellets, 99.999%, 3-6 mm
Product Type: Pure Metal Evaporation Material
Research-grade laboratory product
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LABORATORY PROCUREMENT SUPPORT
For material selection, deposition-source matching, pack-size confirmation or quotation support, contact our technical sales team.
INQUIRY: inquiry@atomfair.com
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Manufacturer: Atomfair LLC
Brand: ATOMFAIR®
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Indium pellets require thermal or resistive evaporation in a vacuum chamber using a compatible boat or crucible material. The Z-ratio of 0.841 must be accounted for in thickness monitoring, and the pellet size (3-6 mm) influences loading and evaporation rate.
- Crucible or Boat Compatibility: Indium evaporation requires a boat or crucible made of molybdenum, tungsten, tantalum, graphite, or alumina to avoid chemical reaction or wetting issues.
- Pellet Size and Loading: The 3-6 mm pellet size must be loaded in a single layer or with appropriate spacing to ensure uniform heating and prevent spitting.
- Z-Ratio Correction: The Z-ratio of 0.841 must be entered into the thickness monitor controller for accurate film thickness measurement.
- Melting Point and Evaporation Temperature: The low melting point (157°C) requires careful power control to avoid rapid evaporation and loss of material.
- Purity Maintenance: The 99.999% purity requires handling with clean tools and storage in a clean, dry environment to prevent contamination.
Indium pellets are loaded into a compatible boat or crucible and heated under vacuum to evaporate and deposit a thin film. The process requires careful control of heating rate, temperature, and deposition rate to achieve desired film properties.
Required Equipment: Thermal evaporation source, Crucible or boat (Mo, W, Ta, graphite, or alumina), Vacuum deposition system
- Select boat or crucible material
Select a boat or crucible made of molybdenum, tungsten, tantalum, graphite, or alumina that is compatible with indium's wetting and melting behavior. - Load pellets into source
Load the indium pellets evenly into the boat or crucible, ensuring they are not overfilled or bridging to allow uniform heating. - Evacuate chamber
Place the loaded source in the vacuum chamber and evacuate to the required base pressure for evaporation. - Heat to melting point
Gradually increase power to the source to heat the indium pellets to their melting point of 157°C, then continue to the desired evaporation temperature. - Monitor deposition rate
Monitor the deposition rate using a quartz crystal microbalance and adjust power to maintain a stable rate, using the Z-ratio of 0.841 for thickness correction. - Cool down after deposition
Allow the source to cool after deposition before venting the chamber to avoid oxidation or thermal shock.
What does the Z-ratio of 0.841 indicate for indium evaporation material, and how does it affect deposition monitoring?
The Z-ratio of 0.841 for indium (In) pellets is a material-specific parameter used in quartz crystal microbalance (QCM) sensor calibration for thin-film thickness monitoring. This value, combined with the density of 7.3 g/cm³ and melting point of 157 °C, allows accurate deposition rate control during thermal/resistive evaporation or low-power e-beam processes. The source confirms these parameters for the 99.999% pure, 3–6 mm pellet form, enabling precise film thickness repeatability.
Which boat or crucible materials are compatible with thermal evaporation of indium pellets?
Indium pellets are compatible with molybdenum (Mo), tungsten (W), or tantalum (Ta) boats, as well as graphite or alumina crucibles. The source specifies these materials for thermal/resistive evaporation, which is the preferred method, and notes that low-power e-beam evaporation is optional. This compatibility ensures the molten indium (melting point 157 °C) does not react with the source holder during deposition.
What are the recommended evaporation methods and source configurations for indium pellets?
Thermal/resistive evaporation is the preferred method for indium pellets, with low-power e-beam evaporation as an optional alternative. The source recommends using a Mo/W/Ta boat or graphite/alumina crucible and confirms the 3–6 mm pellet size is suitable for source loading. These parameters, along with the 99.999% purity and 157 °C melting point, guide process matching for vacuum thin-film deposition.
This indium evaporation material (99.999% purity, 3–6 mm pellets) is optimized for thermal/resistive evaporation in vacuum thin-film deposition, with a low melting point of 157°C requiring careful process control to avoid premature sublimation. The pellet form and specified purity support consistent film quality in research and development applications.
Positive
- High purity 99.999%: The 99.999% purity specification ensures minimal contamination in thin-film deposition, critical for semiconductor and optoelectronic applications.
- Controlled pellet size 3–6 mm: The 3–6 mm pellet size provides consistent source loading and evaporation rates, reducing process variability in thermal evaporation systems.
Trade-offs
- Low melting point 157°C: The low melting point of 157°C demands precise temperature control to prevent premature evaporation or spitting, especially in high-vacuum systems.
- Evaporation method constraints: Thermal/resistive evaporation is preferred; low-power e-beam is optional but may require careful tuning to avoid damage due to indium's softness and low melting point.
Every advanced material, component, equipment, and instrument in our catalog is backed by rigorous testing. We maintain strict internal quality management frameworks and align with CE conformity metrics to deliver transparent, reproducible performance data via our public open-science repository.
To request raw batch performance data, submit formal vendor registration paperwork, or execute a fast-turnaround R&D manufacturing loop, contact us at inquiry@atomfair.com.
Item is dispatched under the Atomfair Shipping & Delivery Framework (Free worldwide shipping on orders over $59 USD excl. heavy equipment). Return is governed by the Atomfair Return & Refund Policy (7-day technical return window).
