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Indium Evaporation Materials

VD0554 Indium Evaporation Materials, In

Material Type: Indium
Symbol: In
Color/Appearance: Silvery Lustrous Gray, Metallic
Purity: 99.9% ~ 99.999%
Shape:Powder/ Granule/ Custom-made

TFM stands out as a leading producer and supplier of high-purity indium evaporation materials, alongside an extensive range of other evaporation materials. Our products are available in both powder and granule forms, with customization options provided to meet specific requirements.

MSDS File

Introduction

Indium Evaporation Materials (In) are high-purity metallic sources designed for thin film deposition via physical vapor deposition (PVD), including electron beam and thermal evaporation. Indium plays a critical role in semiconductor devices, transparent conductive films, infrared optics, and compound semiconductor fabrication.

Thanks to its low melting point, excellent wettability, and compatibility with oxide and III–V compound systems, indium is widely used in advanced electronics, optoelectronics, and display technologies.

Detailed Description

Indium (atomic number 49) is a soft, silvery post-transition metal with a low melting point of 156.6°C. This characteristic makes it particularly suitable for controlled evaporation processes at relatively low thermal loads.

Indium Evaporation Materials are refined to high purity levels to ensure:

  • Minimal contamination in deposited films

  • Stable and uniform evaporation rate

  • Reduced particle generation

  • Excellent film adhesion and electrical performance

Available forms include:

  • Pieces or chunks

  • Granules

  • Pellets

  • Custom-shaped feedstock

Because indium oxidizes mildly in air, materials are surface-cleaned and vacuum-sealed before shipment to preserve evaporation quality. During deposition, indium demonstrates smooth melting behavior, which supports uniform film thickness and reproducible coating performance.

Indium is also widely used as a precursor for indium oxide (In₂O₃) films or in combination with tin to produce indium tin oxide (ITO), a key transparent conducting material.

Applications

Indium Evaporation Materials are widely used in:

  • Transparent conductive oxide (TCO) film deposition

  • Indium oxide (In₂O₃) thin films

  • Indium tin oxide (ITO) coatings

  • Infrared detector fabrication

  • III–V compound semiconductor growth

  • LED and display technologies

  • Soldering and bonding layers

  • Thin film photovoltaic research

In advanced semiconductor manufacturing, indium layers are often used as buffer layers, conductive films, or alloying components.

Technical Parameters

ParameterTypical Value / RangeImportance
MaterialIndium (In)Functional thin film source
Purity99.99% – 99.999% (4N–5N)Reduces film impurities
FormPieces / Granules / PelletsCompatible with evaporation systems
Melting Point156.6°CLow thermal load deposition
Boiling Point2072°CSuitable vapor pressure control
Deposition MethodE-beam / Thermal EvaporationFlexible process options

Comparison with Related Materials

MaterialKey AdvantageTypical Application
Indium (In)Low melting point & good conductivityConductive thin films
Indium OxideTransparent semiconductorDisplay & photovoltaic coatings
ITOHigh transparency + conductivityTouch panels & displays
Gallium (Ga)Semiconductor alloy componentCompound semiconductors

Compared with gallium, indium offers better stability in metallic film form. Compared with indium oxide, pure indium provides greater flexibility for reactive or alloy-based deposition processes.

FAQ

QuestionAnswer
Is indium suitable for thermal evaporation?Yes, its low melting point makes it ideal for thermal evaporation systems.
Can ultra-high purity grades be supplied?Yes, 4N to 5N purity levels are available for semiconductor applications.
Does indium oxidize easily?A thin surface oxide may form in air, but this does not significantly affect evaporation performance.
Can customized shapes be provided?Yes, material form can be tailored to specific crucible or source requirements.
How is it packaged?Vacuum-sealed packaging prevents contamination and moisture exposure during shipment.

Packaging

Our Indium Evaporation Materials (In) are meticulously tagged and labeled externally to ensure efficient identification and maintain high standards of quality control. Each batch is carefully packaged to prevent oxidation and mechanical damage during storage and transportation.

Conclusion

Indium Evaporation Materials (In) provide a reliable and high-purity solution for semiconductor thin film deposition, transparent conductive coatings, and advanced optoelectronic applications. With stable evaporation characteristics, customizable forms, and semiconductor-grade purity, indium remains a cornerstone material in modern electronic and photonic industries.

For detailed specifications and a quotation, please contact us at sales@thinfilmmaterials.com.

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FAQ

  • They are high‐purity substances (e.g. metals, alloys, or compounds) used in thermal or electron‐beam evaporation processes to form thin films on substrates.

  • Typically, they’re processed into a form (often ingots, pellets, or wires) that can be efficiently vaporized. Preparation emphasizes high purity and controlled composition to ensure film quality.

  • Thermal evaporation and electron-beam (e-beam) evaporation are the two main techniques, where material is heated (or bombarded with electrons) until it vaporizes and then condenses on the substrate.

  • Thermal evaporation heats the material directly (often using a resistive heater), while e-beam evaporation uses a focused electron beam to locally heat and vaporize the source material—each method offering different control and energy efficiency.

  • Key parameters include source temperature, vacuum level, deposition rate, substrate temperature, and the distance between the source and the substrate. These factors influence film uniformity, adhesion, and microstructure.

  • Evaporation generally produces high-purity films with excellent control over thickness, and it is especially suitable for materials with relatively low melting points or high vapor pressures.

  • Challenges include issues with step coverage (due to line-of-sight deposition), shadowing effects on complex topographies, and possible re-evaporation of material from the substrate if temperature isn’t properly controlled.

  • Common evaporation materials include noble metals (e.g., gold, silver), semiconductors (e.g., silicon, germanium), metal oxides, and organic compounds—each chosen for its specific optical, electrical, or mechanical properties.

  • Selection depends on desired film properties (conductivity, optical transparency, adhesion), compatibility with the evaporation process, and the final device application (semiconductor, optical coating, etc.).

  • Optimizing substrate temperature, deposition rate, and chamber vacuum are critical for ensuring that the film adheres well and forms the intended microstructure without defects.

  • Troubleshooting may involve checking the source material’s purity, ensuring stable source temperature, verifying the vacuum level, adjusting the substrate’s position or temperature, and monitoring deposition rate fluctuations.

While evaporation tends to yield very high purity films with excellent thickness control, it is limited by its line-of-sight nature. In contrast, sputtering can deposit films more uniformly on complex surfaces and is more versatile for a broader range of materials.

 

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