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Germanium Antimony Sputtering Target

ST0969 Germanium Antimony Sputtering Target, Ge-Sb

Chemical FormulaGe-Sb
Catalog No.ST0969
CAS Number–
Purity99.9%, 99.95%, 99.99%, 99.995%, 99.999%
ShapeDiscs, Plates, Column Targets, Step Targets, Custom-made

TFM offers Germanium Antimony Sputtering Targets with exceptional purity, reflecting our extensive expertise in materials science. We are dedicated to providing competitive pricing and tailored solutions that meet the high standards required for advanced applications in nanotechnology and thin-film deposition.

Introduction

Germanium Antimony (Ge–Sb) Sputtering Target is a chalcogenide-related alloy material widely used in phase-change memory (PCM), optical data storage, and infrared thin film technologies. By combining germanium’s semiconducting behavior with antimony’s phase-transition characteristics, Ge–Sb alloys enable tunable electrical resistivity and rapid reversible structural transformation. As a sputtering target, Ge–Sb provides precise composition control for advanced memory and optoelectronic thin films.

Detailed Description

Our Germanium Antimony Sputtering Targets are manufactured using high-purity germanium and antimony through controlled alloying processes to ensure uniform composition and stable microstructure. Accurate control of the Ge:Sb ratio is essential, as it directly influences crystallization temperature, switching speed, and optical contrast in phase-change applications.

Targets are fabricated via vacuum melting and precision machining to achieve high density and homogeneity. A uniform microstructure reduces compositional segregation and ensures stable sputtering rates during deposition. Depending on the alloy composition and system configuration, Ge–Sb targets are typically compatible with DC sputtering due to their conductive nature, while RF sputtering may be used in specific cases. Custom diameters, thicknesses, and optional bonding to copper backing plates are available for improved heat dissipation in high-power systems.

Applications

Germanium Antimony Sputtering Targets are widely used in:

  • Phase-change memory (PCM) thin films

  • Optical data storage materials

  • Infrared optical coatings

  • Thermoelectric material research

  • Semiconductor device fabrication

  • Chalcogenide-based electronic materials

Technical Parameters

ParameterTypical Value / RangeImportance
Chemical CompositionGe–Sb alloy (custom ratios)Controls phase-change properties
Purity99.9% – 99.99%Reduces defect density in films
Diameter25 – 200 mm (custom available)Compatible with sputtering systems
Thickness3 – 6 mmInfluences target lifetime
Density≥ 99% theoreticalImproves plasma stability
Sputtering ModeDC / RF sputteringSuitable for conductive alloys
BondingUnbonded / Cu backing (optional)Enhances thermal management

Comparison with Related Materials

MaterialKey AdvantageTypical Application
Ge–SbTunable phase-transition behaviorPCM & data storage
Ge–Sb–Te (GST)Mature phase-change systemRewritable memory
Pure SbRapid crystallizationSwitching layers
Ge–SeOptical transparencyIR thin films

FAQ

QuestionAnswer
Can the Ge–Sb composition be customized?Yes, alloy ratios can be tailored to meet specific electrical or optical requirements.
Is DC sputtering suitable?Yes, Ge–Sb alloys are typically compatible with DC sputtering systems.
Are bonded targets available?Yes, copper backing plates are available upon request.
How is the target packaged?Vacuum-sealed with protective foam and export-grade cartons or crates.

Packaging

Our Germanium Antimony Sputtering Targets are meticulously tagged and vacuum-sealed to ensure clear identification and protection against oxidation and contamination. Export-grade packaging safeguards the targets during transportation and storage.

Conclusion

Germanium Antimony (Ge–Sb) Sputtering Target offers a reliable platform for depositing advanced phase-change and semiconductor thin films with tunable electrical and optical properties. With precise composition control, high density, and customizable configurations, it is well suited for next-generation memory devices and optoelectronic research.
For detailed specifications and a quotation, please contact us at sales@thinfilmmaterials.com.

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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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