Opportunities and Challenges coexist in LED material sapphire market in 2014

Professional operation Kyropoulos method long furnace technology development application and control system the design and manufacture of Taiwan art, International limited the company will participate in the 16th session, China International Optoelectronic Expo its general manager Alexandra. Maduhenov believes that the 2014 sapphire market has one more opportunity, but it also has a big challenge. The following is Alexander. The overall demand for sapphire in the world continues to increase. In addition to heavyweight LED substrate applications, the application demand for mobile phone screens continues to expand. it seems to be a bullish for the Sapphire market. However, the following will be a major challenge that the market requires high quality and production efficiency. Who can prove his strength in this battle of quality and production capacity, I believe he will be the winner. The production of sapphire with good yield depends on the four key links of human, machine, material and law. If we use the spirit of the Chinese Five Elements theory as a metaphor, it is only appropriate: mutual restraint, interdependence, mutual coordination and balance. Accurate mastery of the four key applications of human, machine, material and method requires incomparable perseverance and willpower, and must be constantly devoted and tested again and again. A complete and solid professional knowledge talent is definitely a necessary condition in the research and development process. The inability to cut equipment and technology is the second important key. Moreover, it is the ability to analyze the sources of components and raw materials. the latter is the use of the long crystal technique. The continuous improvement of long crystal technology and equipment will bring a new prospect for the growth of high-quality sapphire. Generally speaking, the bubble method is to crystallize the molten soup in the Crucible on the crystal seed under gradual cooling, which looks quite simple and easy to understand on the surface. In fact, when this method is applied to sapphire for industrial growth, in order to obtain the required quality, there will be considerable difficulties. The basic reason for the difficulty of crystal growth is that the crystal growth rate is too fast during the crystal growth process, even when the temperature of the crystallization environment is slightly different. In order to control the crystallization speed of the bubble method, the electric power reduction method is used to provide the heating element with the desired speed. The main process control parameter for crystal growth is the weight of crystal growth. its weight value depends on the speed of temperature reduction, as well as the Crystal crystallization range and area, which are determined by the thermal field structure at the same time. From the above, it can be seen that the research and development of the thermal field structure is a combination of complex and coordinated solutions, and the correct crystallization front section must be ensured. this front section will not cause slight defects in the crystal during crystal growth, and the possible area of the front section of Crystal will be greatly increased to adapt the crystal growth time. Atwa International Co. , Ltd. has made continuous efforts over the years, and the improvement of equipment and long crystal technology has achieved considerable success. It is our great achievement to greatly reduce power consumption and reproducibility of the process. However, we do not stop the pace of continuing to improve the overall process technology, but continue to improve the key components, the mechanical structure of the crystal growth furnace, the software, and the spare parts that use new materials to manufacture the thermal field structure. Personally, I think that many of the shortcomings of the bubble growth method of manufacturers that cannot successfully grow crystals are related to the use of traditional and old equipment structures and technologies. It can be boldly said that, as far as many long crystal techniques of sapphire single crystal required for LED substrates are concerned, bubble method is still a technique that will not be easily replaced at this stage.