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ST11206 High-Purity Lead (Pb) Planar Sputtering Target

Our High-Purity Lead (Pb) Planar Sputtering Targets are engineered for specialized research and development applications, primarily in the fields of low-temperature superconductivity and infrared (IR) photodetectors. Ultra-high purity is critical to minimize impurities that can degrade the performance of these sensitive thin-film devices.

Material Lead (Pb)
Purity ≥ 99.99% (4N) Standard
Key Property Superconducting Transition Temperature (Tc = 7.2 K)
Form Planar Sputtering Target

Key Advantage: Exceptionally low levels of metallic and gaseous impurities ensure the deposited lead films achieve optimal superconducting and electronic properties for fundamental physics and device research.

Customization: Purity (up to 99.999%), dimensions (thickness, length, width), and bonding options fully customizable.

Typical Applications: Thin films for superconducting quantum interference devices (SQUIDs), Josephson junctions, IR photodetectors (e.g., PbSe, PbTe precursors), and specialized X-ray/radiation shielding coatings.

SKU: ST11206 Category: Tags: ,



Description

Complete Technical Specifications

For detailed evaluation and procurement (Standard Reference: ST11206).

Parameter Specification / Typical Value
Material Lead (Pb)
Purity (Standard) ≥ 99.99% (4N)
Available Purity 99.99%, 99.999%
Density ≥ 11.34 g/cm³
Superconducting Tc 7.2 K (High-Purity Bulk)
Melting Point 327.5 °C
Thermal Conductivity 35.3 W/(m·K)
Standard Shape Rectangular Planar
Dimensions Fully Customizable
Sputtering Method DC Magnetron (Low Power Recommended)
Bonding Options Low-temperature bonding to backing plates available
Certification Certificate of Analysis (CoA) with GDMS/ICP-MS data provided

Technical & Application Notes

1. A Foundational Material for Superconducting Electronics

Lead is a classic low-temperature superconductor. High-purity lead thin films are essential for fabricating:

  • Josephson Junctions: The heart of Superconducting Quantum Interference Devices (SQUIDs), the most sensitive magnetometers known, used in biomagnetism, geophysics, and fundamental research.
  • Superconducting Qubits & Circuits: While newer materials are now common, lead films remain important for specific research into superconducting device physics and legacy systems.

The superconducting transition temperature (Tc) and critical current are highly sensitive to impurities and film morphology, making target purity and process control paramount.

2. Enabling Infrared Optoelectronics

Lead chalcogenides (PbS, PbSe, PbTe) are important semiconductors for mid- and long-wavelength infrared detection. Sputtering from a high-purity lead target in a reactive sulfur, selenium, or tellurium atmosphere is one method to deposit these compound films for IR sensors, thermal imaging, and spectroscopic applications.

3. Specialized Shielding and Coating Applications

  • X-ray & Radiation Shielding: Thin, dense lead coatings can provide localized shielding for sensitive electronic components or research setups.
  • Acoustic or Vibration Damping: Lead films are sometimes used for their high density in specialized damping coatings.

4. Handling and Sputtering Considerations

Lead is a soft, low-melting-point metal with specific handling requirements:

  • Low-Power Sputtering: Required to avoid melting or excessive heating of the target surface.
  • Effective Cooling: Bonding to a well-cooled backing plate is crucial.
  • Safety & Compliance: All handling and processing must adhere to strict environmental, health, and safety (EHS) regulations for lead-containing materials.

Quality Assurance

For lead intended for superconducting applications, trace impurity analysis is critical. We utilize Glow Discharge Mass Spectrometry (GDMS) or Inductively Coupled Plasma Mass Spectrometry (ICP-MS) to provide parts-per-billion (ppb) level quantification of elements like Fe, Cu, Ag, and Bi, which can severely degrade superconducting performance. This high-sensitivity certification differentiates our research-grade targets.

Why Stanford Advanced Materials (SAM)

  • Ultra-High Purity Specialization: We supply metals like lead where trace impurity control defines functional performance in quantum and detector applications.
  • Expertise in Low-Temperature Materials: We understand the stringent requirements of superconductivity and IR detector research communities.
  • Full Regulatory Compliance: We handle and ship lead materials with complete adherence to all international safety and transport regulations.

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Get a Formal Quote or High-Sensitivity CoA
For research applications where purity is critical, please provide:

  1. Required purity grade and any specific impurity limits.
  2. Target dimensions and bonding requirements.
  3. Primary application (e.g., Josephson junction fabrication, IR detector research, shielding).
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