China in the Crystal Research, Institute of Physics so Dr. Chen Xiaolong's team leader, silicon carbide crystals is developed by the Institute of Physics of seven years, the state invested 17 million R & D success, with a number of national patents, in addition to both foreign patents, Institute of Physics The main products are two inches tablets, which are mainly used 6H luminescent substrate body, 4H for semiconductor applications, successfully developed in 2003, 2006 has been designed and manufactured with independent intellectual property rights of SiC crystal growth furnaces, technical and laboratory production has been completely successful, and has been successfully sold abroad, with the Tianfu Thermoelectric energy resources cooperation is the perfect combination of research institutes and enterprises, domestic silicon carbide wafers study represents the main State Key Laboratory of Crystal Materials, Shandong University and Institute of Physics. Market Analysis: As the SiC crystal growth is difficult, resulting in SiC crystal growth of industrialization has been slow. After decades of research and development on a global scale has only a small number of research institutes and several semiconductor companies to master the technology. In addition to the current domestic Tianfu Thermoelectric no company can be produced, mainly the United States Cree foreign companies, the company's 2001 sales of SiC and related products reached $ 180 million energy-saving materials Shandong days Yue, profit of $ 48 million. 1997-2001 Cree five years the company's sales with an average annual growth rate of 58%. Silicon carbide crystals for a variety of electronic components substrate, the current international market is 2 inches in diameter (radius 25mm × 0.3mm) of the SiC crystal substrate is priced at $ 500-800 / slice. It is estimated that in 2005 only turnover SiC semiconductor market will reach 200 million $ 50 million internationally. By 2009 Shandong days Yue new materials, as demand SiC and GaN semiconductor devices, high-brightness blue LED and ultraviolet LD, and solid-state lighting, and broadband semiconductors (SiC, GaN) market volume will increase to $ 4.8 billion. In addition, SiC power devices in high-frequency devices such as power conditioning and communication systems and high-definition television system immeasurable market prospects. Photorefractive crystals are crystals of many of the most wonderful kind of crystal. When the outside weak laser shines on the crystal, the crystal is excited carriers migration in crystals and re-captured, so that the space charge field generated inside the crystal, then, through the electro-optic effect Shandong days Yue technological innovation, space charge field changes the refractive index of the crystal in the spatial distribution of the refractive index grating is formed, thereby producing a light effect analysis variable. Photorefractive effect is characterized in low light action can show significant effects. Shandong days Yue example, in self-pumped phase conjugation experiments, a bunch of milliwatts of laser photorefractive crystal effect can produce a phase conjugate wave, so that the distortion of the image is clear too unrecognizable as ever. Since the refractive index grating is non-local in space, and it is relative to the direction of wave vector in the interference fringes have a spatial phase shift, and therefore enables the realization of energy conversion between the beam. Such as the two-wave coupling experiments, when a bunch of weak signal light and a bunch of light in photorefractive crystals interaction, the weak signal light can be enhanced 1000-fold. In addition, by virtue of photorefractive effect, photorefractive crystal also has the following special properties: 5 000 different images can be stored in the volume of 3cm3 and can quickly display either one; can accurately detect small enough Only 10--7 meters change; you can filter out static images, which tracks the image change just happened; they can even simulate the human brain's associative thinking. Therefore, this crystal once discovered, it has aroused great interest. Currently, there is value in photorefractive crystals of barium titanate (BaTiO3), potassium niobate (KNbO3), lithium niobate (LiNbO3), niobium carbide strontium Shandong days Yue, Yue-day advanced companies (certified), Jinan, Shandong days Yue provided by Spark Technology Development Company Limited. Jinan Spark Technology Development Co., Ltd. (www.sicc.cc) is a leader in Jinan, chemical equipment, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. In Shandong days Yue leadership with the staff warmly welcome all inquiries negotiations to create Shandong days Yue a better future.