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ST0489 Bismuth Antimony Sputtering Target, Bi/Sb

Chemical Formula: Bi/Sb
Catalog Number: ST0489
Purity: 99.99%
Shape: Discs, Plates, Column Targets, Step Targets, Custom-made

Bismuth Antimony sputtering target  come in various forms, purities, sizes, and prices. Thin Film Materials (TFM) manufactures and supplies top-quality sputtering targets at competitive prices.

COA_BiSb_TRGPdf

Bismuth Antimony Sputtering Target (Bi/Sb)

Introduction

Bismuth Antimony Sputtering Target (Bi/Sb) is a widely used alloy material for thin-film deposition, especially in thermoelectric research, topological insulators, infrared devices, and semiconductor development. The Bi–Sb system exhibits unique electrical and thermal properties that make it ideal for advanced functional coatings and R&D applications.

Detailed Description

Bismuth Antimony sputtering targets are typically manufactured through vacuum melting, hot pressing, or powder metallurgy to ensure a homogeneous alloy structure. The ratio between Bi and Sb can be precisely controlled depending on the desired electronic properties—common compositions include Bi₀.₉Sb₀.₁, Bi₀.₇Sb₀.₃, and custom atomic percentage ratios tailored for specific device designs.

Achieving high purity (99.9%–99.99%) is critical since impurities can significantly influence carrier concentration, thermoelectric efficiency, and thin-film uniformity. The final target is machined and polished to meet the dimensional tolerances required for magnetron sputtering and custom PVD systems.

Backing plates such as copper or titanium may be applied using indium or elastomer bonding, providing enhanced thermal conduction and mechanical stability during deposition.

Applications

Bismuth Antimony (Bi/Sb) sputtering targets are used in a wide range of advanced technologies:

  • Thermoelectric thin films
    – For cooling devices, micro-generators, and energy harvesting modules

  • Topological insulators
    – Bi–Sb alloys are among the earliest and most studied topological materials

  • Infrared (IR) detector materials
    – Used in photodetectors and thermal imaging systems

  • Semiconductor and optoelectronic components
    – Tunable band gap films for specialized electronics

  • Micro-fabrication and R&D laboratories
    – Research on quantum materials, carrier dynamics, and low-temperature sensors

  • Thin-film coatings for precision devices
    – Enhanced performance for measurement and sensing applications

Technical Parameters

ParameterTypical Value / RangeImportance
Purity99.9% – 99.99%High purity improves film uniformity & electronic properties
CompositionBi/Sb customizable ratioTailors electrical conductivity & bandgap
Diameter25 – 300 mm (custom)Fits most magnetron sputtering systems
Thickness3 – 10 mmInfluences sputtering lifetime & erosion uniformity
BondingIndium, elastomer, Cu/Ti backingEnhances heat transfer & target stability

Comparison with Related Materials

MaterialKey AdvantageTypical Application
Bi/SbTunable bandgap & thermoelectric performanceIR detectors, quantum materials
Bi₂Te₃High thermoelectric efficiencyPeltier devices, cooling modules
Sb₂Te₃Good phase-change behaviorMemory devices & optical recording

FAQ

QuestionAnswer
Can the Bi/Sb composition be customized?Yes. Atomic ratios can be adjusted for specific device requirements.
How are the targets packaged?Vacuum-sealed, protected with foam, and packed in export-safe cartons or wooden crates.
Which industries use Bi/Sb targets?Semiconductor research, thermoelectric engineering, IR detection, and quantum materials.
Do you provide bonding services?Yes. Indium bonding, elastomer bonding, and Cu/Ti backing are available.
Are Bi/Sb targets suitable for DC or RF sputtering?Yes. They can be used in both systems depending on equipment configuration.

Packaging

Each Bismuth Antimony Sputtering Target is vacuum-sealed and clearly labeled for easy traceability. Protective foam and robust export packaging prevent oxidation, cracking, or mechanical damage during transportation.

Conclusion

Bismuth Antimony Sputtering Targets offer tunable electronic properties and excellent performance for thermoelectric films, topological insulators, and semiconductor research. With customizable Bi/Sb ratios, stable manufacturing quality, and optional bonding services, they are well-suited for both industrial thin-film production and advanced scientific research.

For detailed specifications or a quotation, please contact us at:
📩 sales@thinfilmmaterials.com

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BiSb target 85/15 wt% ø50.8×2mm Cu B/Plate, BiSb target 85/15 wt% ø50.8×3mm Cu B/Plate, BiSb Target 85/15 at% Ø2"×3 mm In Bonded 2 mm Cu BP

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FAQ

It’s the source material (in solid form) used in sputter deposition to eject atoms or molecules that then form a thin film on a substrate.

Targets can be pure metals (e.g., gold, copper, aluminum), ceramics (e.g., Al₂O₃, SiO₂, TiO₂), alloys, or composites—chosen based on the film’s desired properties.

 

They are produced by processes such as melting/casting for metals or sintering (often with hot isostatic pressing) for ceramics and composite targets to ensure high density and purity.

 

In a vacuum chamber, a plasma (typically argon) bombards the target, ejecting atoms that travel and condense on a substrate, forming a thin film.

 

Key factors include the target’s purity, density, grain structure, and the sputtering yield (i.e. how many atoms are ejected per incident ion), as well as operating conditions like power density and gas pressure.

 

Operators monitor target erosion (often by measuring the depth of the eroded “race track”) or track total energy delivered (kilowatt-hours) until it reaches a threshold that can compromise film quality.

 

Fragile materials (such as many ceramics or certain oxides) and precious metals often require a backing plate to improve cooling, mechanical stability, and to allow thinner targets that reduce material costs.

 

DC sputtering is used for conductive targets, while RF sputtering is necessary for insulating targets (like many oxides) because it prevents charge buildup on the target’s surface.

 

In reactive sputtering, a reactive gas (e.g., oxygen or nitrogen) is introduced to form compound films on the substrate, but it may also “poison” the target surface if not carefully controlled.

 

Many manufacturers prefer to control raw material quality by sourcing their own powders; using external powders can risk impurities and inconsistent target properties.

 

Targets should be stored in clean, dry conditions (often in original packaging or re-wrapped in protective materials) and handled with gloves to avoid contamination, ensuring optimal performance during deposition.

Deposition rate depends on factors such as target material and composition, power density, working gas pressure, substrate distance, and the configuration of the sputtering system (e.g., magnetron design).

 
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