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High Purity Aluminum Foil - Plate - Sheet

highpurityaluminum - Plate - Sheet - Foil| SKU: varies by variant
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GDMS COA included with each shipment. Most standard items ship within 1 to 2 business days.

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High purity aluminum plates, sheets, and foils are flat-rolled forms engineered for applications requiring precise thickness control, excellent surface quality, and minimal metallic impurities. These materials are widely used as substrates, electrode blanks, and structural components in thin film deposition, electrochemical systems, and advanced research where material purity directly influences film quality, interface properties, and device performance.

Available in purities from 4N (99.99%) through 6N (99.9999%), high purity aluminum foil, sheet, and plate offer the traceability and surface integrity required for sensitive processes, including quantum computing and superconducting RF applications. We have CNC machining service partner if custom machining is needed.  GDMS COA included with each shipment.

Most standard items ship within 1–2 business days.  Custom sizes, thicknesses, and processing (including machining, slitting and rerolling) are available to meet specific research or production requirements.

•    Foil — Thickness 0.0012" to 0.024", Width up to 7" (except for 4N - 0.004" and 0.006" which we can do up to 17" width), Available in Cut Lengths or in Coils
•    Coils – we can slit foil coils as narrow as 1” width with various ID cores.  Reroll options are available to as thin gauge as 0.0005” (0.0127 mm), although MOQ (minimum order quantities) will apply.
•    Sheet — Thickness 0.025" to 0.10", Width up to 15.75" (400 mm)
•    Plate — Thickness 0.125" to 2", Width up to 15.75" (400 mm), Lengths up to 60"

Typical Applications:
•    Substrate material for thin film deposition and subsequent materials characterization
•    Electrode blanks for electrochemical and energy storage research
•    Battery current collector prototyping
•    Custom machined components for vacuum systems
•    Optical and aerospace component fabrication
•    Quantum computing and superconducting RF (SRF) applications
•    University and industrial R&D

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Typical Applications

  • Semiconductor metallization and interconnect layers
  • Flat panel display and touch screen coatings
  • Optical coatings and precision mirrors
  • Hard disk drive media
  • Solar cell contacts
  • MEMS and sensor device fabrication
  • Decorative and functional PVD coatings

Send us your target design for a custom quote

MaterialAluminum (Al)
Purity range4N (99.99%) to 6N (99.9999%)
Alloy optionsAlSi, AlCu, AlCuSi, AlMg, AlMgSi, AlNi, AlNd
Available diameters1" (25mm) to 12" (305mm)
Available thicknesses0.125" (3.2mm) to 1" (25.4mm)
Production methodDirectional solidification in vacuum (5N and above). Cast (4N).
FormsDisk, bonded assemblies, custom shapes
CertificationGDMS COA included with each shipment
Shipping1 to 2 business days (standard US), 2 to 5 days international
Custom ordersCustom sizes, thicknesses, alloys, and bonded assemblies available
What purity sputtering target do I need for semiconductor applications?
For semiconductor metallization and interconnect layers, 5N (99.999%) is the standard choice. For higher-end applications such as superconducting devices or quantum computing, 6N (99.9999%) targets reduce trace metal contamination to levels required by those processes. 4N targets are suitable for general thin-film coating and decorative applications.
Can I get a bonded sputtering target assembly?
Yes. HPA supplies bonded target assemblies designed to match your specific sputtering tool and process requirements. Contact us with your target design, backing plate specifications, and bonding requirements for a custom quote.
What is the difference between cast and directionally solidified targets?
HPA's super high purity targets (5N and above) are produced using directional solidification in vacuum, not cast. This process prevents inclusions from entering the metal, enabling us to maintain the highest purities. Cast targets at lower purities (4N) are suitable for applications where trace-level contamination is less critical.
What sizes are available and can you make custom sizes?
Stock sizes range from 1" (25mm) to 12" (305mm) in diameter with thicknesses from 0.125" (3.2mm) to 1" (25.4mm). Larger sizes and custom dimensions are available with short lead times. Contact us with your specifications.
Technical guide

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Quantum applications

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