Niobium Particles For Electronic Industry

Niobium particles used in the electronic industry must have a purity of 99.95% or higher, with strict limits on the content of interstitial elements such as oxygen (O<100ppm), nitrogen (N<50ppm), and carbon (C<50ppm). Especially, it is necessary to control the emission of alpha particles such as uranium and thorium (<0.001ppm) to avoid causing soft errors in semiconductor devices. This characteristic is the foundation for ensuring the stability of material electrical properties and device reliability, directly determining the consistency of the final product performance.

Niobium particles need to have controllable particle size distribution (usually D50=1-50 μ m) and high sphericity (>90%) to meet the process requirements of different application scenarios. Spherical particles have excellent fluidity and filling properties, suitable for 3D printing and electrode slurries; Porous particles are beneficial for increasing the specific surface area of the capacitor anode. The concentration of particle size distribution (Span value<1.2) directly affects the sintering density and surface roughness.

It needs to have a high dielectric constant (ε ≈ 41) and low dielectric loss, suitable for high-frequency capacitor dielectric materials; Its superconducting critical temperature (9.25K) makes it the preferred material for low-temperature superconducting devices. At the same time, the low resistivity (<15 μ Ω· cm) characteristic meets the conductivity requirements of semiconductor coating. These electrical properties make it capable of handling various application scenarios ranging from consumer electronics to quantum computing.

It needs to maintain stability during high-temperature sintering and form a good co firing interface with electrode materials such as silver and copper without reacting. At the same time, it needs to have good dispersibility and slurry adaptability, and be compatible with organic carriers without settling. These features ensure the feasibility of wide application in modern electronic production processes.

 

The main application scenarios and equipment for niobium particles in the electronic industry are:

• Chip multilayer ceramic capacitors (MLCC)

As a dielectric material additive, it improves the dielectric constant and temperature stability, and is used in high-end MLCC manufacturing such as smartphones and automotive electronics.

• Tantalum capacitor substitute

As an anode material, a high specific surface area porous structure is formed by sintering and applied to high-performance capacitors such as industrial power supplies and servers.

• Superconducting quantum devices

As a coating material for the inner wall of superconducting cavities, it is used in extremely low temperature working environments for particle accelerators and quantum computers.

• Semiconductor sputtering target material

High purity niobium particles are sintered into target materials for deposition of chip metallization layers and barrier layers, suitable for advanced processes below 90nm.

• 3D printed electronic devices

Spherical niobium particles are used as key components of electronic pastes for printing embedded electronic components such as antennas and sensors.

• Piezoelectric ceramic material

As a raw material for piezoelectric ceramics such as lead magnesium niobate (PMN), it is used in acoustic devices such as ultrasonic transducers and filters.

Shaanxi Zhongheng Weichuang Metal Materials Co., Ltd. is a leading niobium material manufacturer and global exporter in China, specializing in providing high-purity and high-quality niobium products. We adopt an integrated operation model without any intermediate links, ensuring that you receive reliable products directly from the source at the most competitive price.
The company strictly adheres to international standards, comprehensively controls quality, and provides professional full process services, ensuring worry free cooperation from technical consultation to after-sales support.
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