Tungsten targets are widely used in many fields, mainly including semiconductor manufacturing, spallation neutron source devices, photolithography processes, thin film deposition technology, nuclear fusion devices, etc.
Application in semiconductor manufacturing
In semiconductor manufacturing, tungsten targets are mainly used in photolithography processes and thin film deposition technology. The high density, high hardness and low chemical reactivity of tungsten targets enable them to provide precise etching control during plasma etching, reduce unnecessary material loss, and ensure the fineness and integrity of circuit patterns. In thin film deposition technology, tungsten targets are formed into dense films through physical vapor deposition (PVD) and chemical vapor deposition (CVD). These films have high hardness and wear resistance, which improve the mechanical strength and durability of semiconductor devices. At the same time, their high conductivity and low impedance help to improve current conduction efficiency and reduce power consumption.
Application in spallation neutron sources
Tungsten targets also play a key role in spallation neutron source devices. Spallation neutron sources produce neutrons by bombarding heavy atomic nuclei with high-energy protons, which are used to study the microstructure and dynamic properties of matter. Tungsten has become the preferred material for nuclear fusion devices and spallation neutron sources due to its high melting point, high thermal conductivity and low sputtering rate. Spallation neutron sources can provide a wider neutron energy spectrum, expanding the scope of neutron science research, especially in materials science research. The application of tungsten targets makes it possible to study hydrogen storage materials, battery reaction laws, and develop new materials.