China Epitaxial Wafers Manufacturers, Suppliers, Factory

Semiconductors are materials that guide electrical properties between conductors and insulators, with equal probability of loss and gain of electrons in the outermost layer of the atomic nucleus, and are easily made into PN junctions. Such as "silicon (Si)", "germanium (Ge)" and other materials.

The third generation of semiconductor materials AlN belongs to the direct bandgap semiconductor, its bandwidth of 6.2 eV, with high thermal conductivity, resistivity, breakdown field strength, as well as excellent chemical and thermal stability, is not only an important blue light, ultraviolet materials, or electronic devices and integrated circuits, important packaging, dielectric isolation and insulation materials, especially for high-temperature high-power devices. In addition, AlN and GaN have a good thermal match and chemical compatibility, AlN used as GaN epitaxial substrate, can significantly reduce the defect density in GaN devices, improve device performance.

In the semiconductor industry, quartz is widely used, and high-purity quartz products are even more important consumables in wafer production. The production of silicon single crystal crucibles, crystal boats, diffusion furnace core tubes, and other quartz components must use high-purity quartz glass products.

Silicon carbide (SiC) is a material that possesses high bond energy, similar to other hard materials like diamond and cubic boron nitride. However, the high bond energy of SiC makes it difficult to crystallize directly into ingots via traditional melting methods. Therefore, the process of growing silicon carbide crystals involves the use of vapor phase epitaxy technology.

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 crystal growth furnace is the core equipment for the growth of Silicon Carbide crystals. It is similar to the traditional crystalline silicon-grade crystal growth furnace. The furnace structure is not very complicated. It is mainly composed of the furnace body, heating system, coil transmission mechanism, vacuum acquisition and measurement system, gas path system, cooling system, control system, etc. The thermal field and process conditions determine the key indicators such as the quality, size, and conductivity of the SiC crystal.