This year on overheated investment in the LED lights industry, excess capacity, controversy has always existed. According to the statistics of the advisory body, 2-inch sapphire substrate film in the first quarter of this year, the average Chu Huojia around $ 30 / piece, but in September, led home lighting fixtures, the price has dropped to about $ 10, a decline of more than 60%. , CherylDiuguid not surprised, she said, the price of sapphire is indeed on a downward trend, a downward trend is the price of chips, she thought it was a good thing, which means that consumers will be more poor quality cheap products.
Reporters learned that the mainstream international market size is 4 inches, 6 inches have been put on the agenda. Substrate tablets abroad, today’s mainstream size is 4 inches, the country should start next year the popular 4 inches, The best of LED products such as led home lighting fixtures, 2 inches. Quarter swimming. Photoelectric Dragon Lee, general manager of stay minister also said in an interview with the China Electronics News “reporter, the application of the crystal growth furnace production of crystal can produce 6 inches of substrate films.
And then to 6 inches from 2 inches to 4 inches is a process of upgrading, but the changes caused by the upgrade process is not merely the increase in surface area of the chip, the chip surface increases at the same time, its thickness should be increased, so it will be used more sapphire Materials. This is also a lot of reasons for enterprises to invest in large-size sapphire substrate project.
However, the substrate film of the production of larger challenges facing the greater.CherylDiuguid told reporters that the skill of the wafer processing vendors processing chip is very important to produce 6 inches of substrate film when the geometry of the chip, led home lighting fixtures, the average roughness, the total thickness, curvature, warpage and other parameters are achieved and to ensure that quality is very difficult. Not all chip manufacturers have the ability to produce large-size chip substrate. Thus, the substrate localization of the road there are still many difficulties to overcome. Domestic enterprises not only to grab opportunities in the large-size substrate mass production of key nodes, but also in technology, led home lighting fixtures such as LED street light, product quality has a strong competitive force.