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Indium (In) Evaporation Material, Pellets, 99.9999%, 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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The indium pellets require thermal/resistive evaporation using a Mo/W/Ta boat or graphite/alumina crucible. The material's melting point of 157°C and Z-ratio of 0.841 must be used for deposition rate calibration and process control.
- Evaporation Source Compatibility: Use only Mo/W/Ta boat or graphite/alumina crucible as the evaporation source to avoid contamination from incompatible materials.
- Evaporation Method Preference: Thermal/resistive evaporation is the preferred method; low-power e-beam is optional but requires validation of source compatibility.
- Process Calibration: Calibrate the quartz crystal microbalance using the provided Z-ratio of 0.841 for accurate thickness monitoring.
- Purity Requirement: Maintain the specified 99.9999% purity to prevent film contamination in high-vacuum deposition environments.
- Pellet Size Selection: Select the 3-6 mm pellet size to ensure consistent loading and uniform evaporation rate across the deposition run.
Why is 99.9999% purity indium evaporation material specified for thin-film deposition, and what trade-offs exist versus lower-purity grades?
The 99.9999% purity (6N) specification minimizes trace metal contamination in deposited films, which is critical for sensitive electronic and optoelectronic applications. Lower-purity grades may introduce unintentional dopants or defects, but can be cost-effective for non-critical layers. The product description explicitly lists purity as 99.9999% and notes that this allows comparison between standard, high-purity, and RFQ-controlled grades, indicating that buyers should evaluate the trade-off between purity level and film performance requirements.
Which boat or crucible materials are compatible with indium evaporation in thermal or e-beam systems?
Indium evaporation material is compatible with molybdenum (Mo), tungsten (W), or tantalum (Ta) boats, as well as graphite or alumina crucibles. The source specifies that thermal/resistive evaporation is preferred, with low-power e-beam as an optional method using these boat or crucible materials. This compatibility ensures that the molten indium does not react aggressively with the source hardware, although users should confirm geometry and wetting behavior for their specific deposition system.
What is the significance of the Z-ratio of 0.841 for indium pellets in quartz crystal microbalance (QCM) monitoring during deposition?
The Z-ratio of 0.841 is a material-specific acoustic impedance factor used to correct the film thickness reading from a quartz crystal monitor. Without this correction, the measured thickness would deviate from the actual deposited thickness because indium has a different acoustic impedance than the quartz crystal. Operators must input the Z-ratio value (0.841) into the monitor software to obtain accurate film thickness and rate control during evaporation. The product specification includes this parameter for precise process calibration.
Evaluation of Indium (In) evaporation pellets (99.9999% purity, 3-6 mm pellets) for thermal resistive evaporation indicates high material purity suited for thin-film applications, but requires careful thermal management due to low melting point (157°C) and specific source hardware compatibility (Mo/W/Ta boat or graphite/alumina crucible).
Positive
- Ultra-high purity (99.9999%): The 6N purity grade minimizes trace element contamination in deposited films, supporting consistent electrical and optical properties in sensitive thin-film applications.
- Defined pellet size range: Pellets sized 3-6 mm enable reproducible loading into thermal evaporation sources, promoting uniform melt behavior and steady deposition rates.
Trade-offs
- Low melting point constraint: With a melting point of 157°C, precise temperature control is required to avoid premature evaporation or droplet ejection, particularly during ramp-up in resistive heating boats.
- Restricted source compatibility: Evaporation requires Mo/W/Ta boats or graphite/alumina crucibles; systems without these specific source materials may need hardware modification to achieve stable deposition.
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).
