Silicon carbide wafer market prospect
Heavily sb-doped silicon carbide is the third generation of high temperature broadband gap semiconductor materials. As the third lighting science and technology revolution, attractive application prospect in the market. The capacity of the product, the quality is close to colorless transparent gem grade level, the level of 2001 to the United States Cree company, and has set up a can produce blue, green, yellow, crystal products marked the company will soon realize the silicon carbide crystal for the first time in domestic sales, and began to enter the commercial operations, to become the world's second big diameter product batch supplier.
Silicon carbide is also called corundum sand or refractory. Silicon carbide is using quartz sand and petroleum coke or coal tar, wood chips (green silicon carbide production need to add salt) such as raw materials in the Canon of high-temperature resistance furnace smelting. At present, the industrial production of silicon carbide can be divided into two black silicon carbide and green silicon carbide, are the six-party crystal, specific gravity of 3.20 ~ 3.25, the microhardness of 2840 ~ 3320 kg/was.
Heavily sb-doped silicon carbide is the third generation of high temperature broadband gap semiconductor materials including black silicon carbide and silicon carbide, including: black silicon carbide is quartz sand and petroleum coke and high quality silica as the main raw material, through high temperature electric resistance furnace smelting. Its hardness is between fused alumina and between diamond and mechanical strength higher than that of corundum, sharp and crisp. Green silicon carbide is a petroleum coke and the high quality silica as the main raw material, adding salt as additive, via high temperature electric resistance furnace smelting. Its hardness is between fused alumina and between diamond and mechanical strength is higher than fused alumina.