SiAI Metal Sputtering Target Silicon Aluminum Target Chemical Stability

Product Specification

The silicon-aluminum target is a high-purity alloy target made by mixing silicon (Si) and aluminum (Al) in specific ratios. After processes such as melting, casting, and precision machining, it forms a high-density, uniform functional target material. With silicon's semiconductor properties and aluminum's excellent thermal conductivity, the silicon-aluminum target can deposit thin films with strong adhesion, uniform thickness, and stable layers during sputtering or evaporation processes. It is widely used in semiconductor chip interconnects, electrode layers, optical coatings, functional coatings, and new energy devices.

Its high purity (≥99.99%), chemical stability, and process compatibility make it an idea choice for industries such as photovoltaic solar, display panels, electronic devices, and energy-efficient building glass. The silicon-aluminum target not only ensures product performance and reliability but also aids in efficient and precise thin-film preparation.

Key Advantages of Silicon-Aluminum Targets

l Combines the Advantages of Pure Silicon and Pure Aluminum

By modulating the Si/Al ratio, the material's properties can be precisely tailored to meet specific application requirements. This performance tunability allows for customized solutions across diverse industrial sectors.

l Increases Adhesion to Substrate

The optical properties (e.g., reflectivity, absorption rate) of the Si-Al target can be controlled by the Si content. It also boasts high hardness, making it ideal for optical devices and decorative coatings.

Main Applications of Silicon-Aluminum Targets

l  Semiconductor Manufacturing

Silicon-aluminum targets are widely used for depositing metal interconnects, electrode layers, and barrier layers on wafers. In chip manufacturing, silicon-aluminum alloy atoms are uniformly deposited on the wafer surface using physical vapor deposition (PVD) technology to form thin films with high conductivity and strong stability; ensuring reliable, high-speed electrical connections between electronic components and meeting advanced process requirements.

l Optical Device Manufacturing

Silicon-aluminum targets are essential for depositing functional films on lenses, filters, and sensors. Precisely modulating film thickness  optimizes transmission, reflectivity, and absorption to enhance optical clarity and durability. This technology is a standard in high-end applications, including telescopes, microscopes, and optical communication systems.

l Functional Coatings and Decorative Films

Silicon-aluminum targets deposit multifunctional thin films on the surface of architectural glass, automotive glass, electronic glass, household appliance casings, and decorative panels, such as anti-reflection films, conductive films, wear-resistant films, or aesthetic decorative films. These coatings enhance the optical and electrical properties of glass and metal surfaces, increase mechanical strength and corrosion resistance, meeting energy-saving, environmental protection, and durability requirements.

l New Energy Devices

In solar cells and photovoltaic modules, silicon-aluminum targets are used as conductive or barrier layers. Furthermore, the chemical stability and high purity of the material ensure the reliable performance of the cells in high temperature, high humidity, and long-term usage conditions.