China CVD SiC Pancake Susceptor Manufacturer, Supplier, Factory

Solid silicon carbide has excellent properties such as high temperature stability, high hardness, good abrasion resistance, and good chemical stability, so it has a wide range of applications. The following are some applications of solid silicon carbide:

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.

Spatial ALD, spatially isolated atomic layer deposition. The wafer moves between different positions and is exposed to different precursors at each position. The figure below is a comparison between traditional ALD and spatially isolated ALD.

High purity: The silicon epitaxial layer grown by chemical vapor deposition (CVD) has extremely high purity, better surface flatness and lower defect density than traditional wafers.

Etching technology in semiconductor manufacturing often encounters problems such as loading effect, micro-groove effect and charging effect, which affect product quality. Improvement solutions include optimizing plasma density, adjusting reaction gas composition, improving vacuum system efficiency, designing reasonable lithography layout, and selecting appropriate etching mask materials and process conditions.