China High purity graphite ring Manufacturer, Supplier, Factory

Silicon carbide is one of the ideal materials for making high-temperature, high-frequency, high-power and high-voltage devices. In order to improve production efficiency and reduce costs, the preparation of large-size silicon carbide substrates is an important development direction.

Chemical vapor deposition (CVD) in semiconductor manufacturing is used to deposit thin film materials in the chamber, including SiO2, SiN, etc., and commonly used types include PECVD and LPCVD. By adjusting the temperature, pressure and reaction gas type, CVD achieves high purity, uniformity and good film coverage to meet different process requirements.

Silicon carbide substrates have many defects and cannot be processed directly. A specific single crystal thin film needs to be grown on them through an epitaxial process to make chip wafers. This thin film is the epitaxial layer. Almost all silicon carbide devices are realized on epitaxial materials. High-quality silicon carbide homogeneous epitaxial materials are the basis for the development of silicon carbide devices. The performance of epitaxial materials directly determines the realization of the performance of silicon carbide devices.

Recently, the German research institute Fraunhofer IISB has made a breakthrough in the research and development of tantalum carbide coating technology, and developed a spray coating solution that is more flexible and environmentally friendly than the CVD deposition solution, and has been commercialized.

VeTek Semiconductor's Porous Tantalum Carbide, as a new generation of SiC crystal growth material, has many excellent product properties and plays a key role in a variety of semiconductor processing technologies.

As the 8-inch silicon carbide (SiC) process matures, manufacturers are accelerating the shift from 6-inch to 8-inch. Recently, ON Semiconductor and Resonac announced updates on 8-inch SiC production.