The niobium target is made from high-purity niobium metal (purity
> 99.95%). Niobium is a silver-gray, rare, soft, and ductile
transition metal with a high melting point (2468°C), excellent
corrosion resistance (resistance to strong acid/alkali corrosion at
room temperature < 0.01 mm/year), and good conductivity.
The niobium targets achieve a purity level exceeding 99.95%,
characterized by a refined grain size and a fully recrystallized
microstructure. The material exhibits excellent triaxial
consistency, which, as a cathode sputtering target, facilitates the
formation of a highly uniform oxide film. This inert protective
layer remains non-reactive with atmospheric elements, ensuring
long-term surface stability.
Excellent Properties of Niobium Target
l High density, low resistance, fine grain size
l High hole mobility in films, high optical transmittance, excellent
interface matching
l Low non-metallic impurities (C, N, O)
Wide Applications of Niobium Target
l Semiconductor Manufacturing
Niobium target plays a key role in chip manufacturing—through
magnetron sputtering, it can deposit a niobium thin film as thin as
200 nm on a silicon wafer. This ultra-thin coating effectively
enhances the conductivity and corrosion resistance of integrated
circuits, making it one of the core materials for 5G chips and
memory devices.
l Optical Device Manufacturing
When niobium target meets optical coating technology, it creates
remarkable chemical reactions:
Camera lens coatings: increase light transmittance to 99.7%;
AR glasses coatings: enable selective light transmission;
Laser mirrors: withstand high temperatures up to 1800°C.
These properties make niobium target indispensable in applications
ranging from smartphone cameras to telescopes.
l Decorative Coatings
Niobium target is highly favored in decorative coatings due to its
unique color adjustability and excellent performance. Through
anodizing or magnetron sputtering, niobium coatings can display a
range of colors, including blue, purple, and gold, while offering
corrosion resistance, high hardness, and biocompatibility. It is
widely used in the decorative coatings of high-end watches,
jewelry, electronic products, and medical beauty devices.
