China metal organic chemical vapor deposition (MOCVD) Manufacturer, Supplier, Factory

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.

From the application perspective of SiC single crystal growth, this article compares the basic physical parameters of TaC coating and SIC coating, and explains the basic advantages of TaC coating over SiC coating in terms of high temperature resistance, strong chemical stability, reduced impurities, and lower costs.

Silicon carbide nanomaterials (SiC) are materials with at least one dimension at the nanometer scale (1-100nm). These materials can be zero-, one-, two-, or three-dimensional and have diverse applications.

Diamond, a potential fourth-generation "ultimate semiconductor," is gaining attention in semiconductor substrates due to its exceptional hardness, thermal conductivity, and electrical properties. While its high cost and production challenges limit its use, CVD is the preferred method. Despite doping and large-area crystal challenges, diamond holds promise.

The main difference between epitaxy and atomic layer deposition (ALD) lies in their film growth mechanisms and operating conditions. Epitaxy refers to the process of growing a crystalline thin film on a crystalline substrate with a specific orientation relationship, maintaining the same or similar crystal structure. In contrast, ALD is a deposition technique that involves exposing a substrate to different chemical precursors in sequence to form a thin film one atomic layer at a time.

Electron beam evaporation is a highly efficient and widely used coating method compared to resistance heating, which heats the evaporation material with an electron beam, causing it to vaporize and condense into a thin film.