China Graphite Electrodes Manufacturers, Suppliers, Factory

According to the research results, TaC coating can act as a protection and isolation layer to extend graphite component life, improve radial temperature uniformity, maintain SiC sublimation stoichiometry, suppress impurity migration, and reduce energy consumption. Ultimately a TaC-coated graphite crucible set is expected to improve SiC PVT process control and product quality.

Porous graphite, also known as porous carbon or porous graphite material, is a graphite form that has been specially engineered to have an interconnected network of pores or voids within its structure.

The process of monocrystalline silicon growth predominantly occurs within a thermal field, where the quality of the thermal environment significantly impacts crystal quality and growth efficiency. The design of the thermal field plays a pivotal role in shaping temperature gradients and gas flow dynamics within the furnace chamber. Furthermore, the materials used in constructing the thermal field directly influence its lifespan and performance.

The history of silicon carbide (SiC) dates back to 1891, when Edward Goodrich Acheson accidentally discovered it while attempting to synthesize artificial diamonds. Acheson heated a mixture of clay (aluminosilicate) and powdered coke (carbon) in an electric furnace. Instead of the expected diamonds, he obtained a bright green crystal adhering to the carbon. This crystal had a hardness second only to diamond, and was thus named carborundum. In 1904, French-Jewish chemist Henri Moissan discovered rare natural silicon carbide minerals while studying meteorite samples from the Diablo Canyon in Arizona, USA. He named these minerals moissanite, and his discovery earned him the 1906 Nobel Prize in Chemistry.

Semiconductor manufacturing, the cornerstone of modern technological advancement, is in constant pursuit of smaller, faster, and more efficient integrated circuits. This relentless pursuit drives the need for increasingly precise and sophisticated manufacturing processes, where each step relies heavily on high-performance, high-quality, and high-precision equipment. Silicon carbide (SiC), a high-performance structural ceramic material, plays a crucial role in this demanding environment.

Semiconductors are materials whose electrical conductivity at room temperature lies between that of insulators and conductors. By introducing impurities, a process known as doping, these materials can become conductors.