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The sapphire market has broad prospects, but the current production of large-size sapphire crystal technology is mainly monopolized by Russian and European and American companies. According to statistics, 40% of the world's sapphire substrates are currently supplied by Russian companies, and the other 25% are controlled by the United States and Europe. A domestic manufacturer of sapphire substrate sheets for industrial production.

Sapphire is an important raw material for making chips, accounting for 10% of the cost of LED chip materials. After the third quarter of 2014, the top two companies in the world with sapphire production increased their prices, which directly affected the price increase of LED chips and packaging.

Sapphire refers to non-red alumina (Al2O3). Sapphire containing impurities has long been used as a gemstone. Because of its various optical, mechanical, electrical, thermal and chemical properties, it has also been widely used in various fields such as industry, and its application range is still expanding. Among them, the ability to synthesize and manufacture sapphire is even more significant. The main uses of sapphire include LED and LED backplanes.

The LED market experienced unprecedented development in 2010. As the market develops, the demand for sapphire substrates used in the manufacture of blue and white GaN-based LEDs has also increased significantly. The demand for finished backplanes has increased from 2 million per month (TIE) to 1 million (December 2009) to 2 million (fourth quarter of 2010).

In the fourth quarter of 2009, there was still room for sapphire processing capacity to meet demand. In other words, companies that process sapphire can cope with the needs of the time. However, the supply of materials gradually reached its limit at the end of 2009. Most of the companies producing sapphire materials have suffered from the financial turnover due to the financial crisis in 2009 and the huge price pressure that continued into 2009. In addition, since the introduction and operation of new equipment usually takes half a year, the production capacity is slowly increasing in 2010, and thus it is unable to adapt to the sharp increase in demand. This has led to a serious material shortage, which has led to skyrocketing prices.

Sapphire cores and blanks have been transformed into “strategic materials” from commodities, and a large number of sapphire producers have regained control of pricing over the years. Moreover, they can set the price to the level that maximizes profits. As a result, the US domestic sales price of sapphire wafers exceeded our expectations, rising to $30, and the price in the cash market was more than $30. Many sapphire-processing companies and LED manufacturers have prepaid the purchase price to ensure production capacity, in order to prevent production line downtime.

The processes for producing sapphire ingots include foaming method (KY method, Kjeldahl crystal method), pulling method (CZ method, Chai's crystal pulling method), temperature gradient method (TGT method), etc. For the mainstream process, the production of sapphire crystals accounts for about 70% and the drilling rate is about 30%.

The raw material of sapphire crystal is alumina crystal, and the production utilization rate is more than 97%, which has been completely localized. The sapphire single crystal product is a sapphire blank, which can be directly sold, and the non-conforming product can be directly processed as a raw material. Other consumable materials such as tungsten and molybdenum materials, diamond tools, sensors, meters, etc. are localized. It is expected that the raw materials and consumables for the production of sapphire crystal rods from sapphire can be fully supplied domestically. The short board in this segment is mainly due to the dependence of imported crystal growth furnaces.

The main domestic sapphire crystal furnace manufacturers are university research institutions, including Xi'an University of Technology, Harbin Institute of Technology and Chongqing No. 26 Research Institute. However, the current domestic production technology can only produce sapphire ingots of less than 2 inches. The grown crystals and gallium nitride (GaN) have large lattice misalignment, which cannot be used in the sapphire substrate field of LEDs, and are mostly used for watch surfaces. Shell, etc.

Suppliers of sapphire crystal rods include Rubicon, Honeywell, Monocrystal, ATLAS, Korea STC and China Hejing Optoelectronics, Yuefeng (Taiju Investment), Harbin Orient, and Qinghai Zhuma.

Suppliers of sapphire substrates include Rubicon, Honeywell, Crystal Systems, Saint-Gobain, Russia's Monocrystal, ATLAS Sapphire, Japan's Kyoto Ceramics (Kyocera), Namiki, Mahk, and domestic Sanan Optoelectronics, Qinghai Casting Sapphire

At present, GaN-based substrates include sapphire, SiC, GaN, Zno, etc. Commercially available only sapphire, SiC substrates, except for CREE, sapphire substrates are basically used.