Silicon Carbide For Durable Ceramic Applications

The silicon carbide industry industry chain mainly includes raw materials, substrate materials, epitaxial materials, devices and modules. In the upstream, the raw materials mainly include various types of silane, boron nitride, etc., which are processed into silicon carbide substrate materials. After further processing, silicon carbide substrate materials can be made into epitaxial materials. Silicon carbide devices and modules are widely used in various fields, including 5G communications, new energy vehicles, photovoltaics, semiconductors, rail transportation, steel industry, building materials industry, etc.

The value of the silicon carbide industry chain is inverted, and the key part is mainly concentrated in the upstream end, among which the substrate production cost accounts for 47% of the total cost, and the epitaxial link cost accounts for 23%. The total upstream cost accounts for about 70% of the total cost of the silicon carbide production chain. Among them, the substrate manufacturing technology barrier is the highest and the value is the largest, which not only determines the preparation method and related parameters of the upstream raw materials, but also determines the performance of the downstream devices. It is the core of the future large-scale industrialization of silicon carbide.

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