After more than 10 years of technological innovation and research, YNZY Germanium Technology Group has developed and produced "zero dislocation" germanium wafers, indium phosphide wafers, gallium arsenide wafers and other core products that successfully broke through the foreign technology blockade and monopoly, and mastered the core key The localization is realized on the basis of independent and controllable technology, and it has been put into commercial application at present.
Recently, Hay Think team visited YNZY advanced materials industry base. Germanium wafers, gallium arsenide wafers, indium phosphide wafers…In the YNZY showroom, these "black technologies" look shining like mirrors, and their applications are at the forefront of high-tech fields.
Solar germanium wafers are widely used in space satellite solar cells, high-altitude unmanned reconnaissance aircraft, and ground high-power concentrating solar power stations due to their advantages of high efficiency, high voltage and high temperature characteristics;
Compared with silicon, gallium arsenide has higher electron mobility and saturation migration speed. Semiconductor devices and semi-insulating devices made of gallium arsenide have the advantages of high frequency, high temperature, low temperature performance, low noise, and strong radiation resistance. ；
Indium phosphide wafers have higher electron migration speeds and are suitable for manufacturing high-speed, high-frequency, low-power microwave and millimeter wave devices and circuits, and are mainly used for the production of optical communication lasers and space detectors.
"Although these chips have excellent physical properties, we have relied on imports for a long time and the preparation technology of the chips has been monopolized by foreign countries. To change this situation, we must break through the'zero dislocation' control technology." YNZY Chief Scientist Hui Feng introduced that during the production process of semiconductor single crystals, due to the fluctuation of external temperature and the influence of liquid surface flow, the arrangement of atoms in the crystal could not reach the ideal state, causing dislocations to proliferate, crystals to change crystals, and product failure. On the basis of establishing a cooperative relationship with the Chinese Academy of Sciences, YNZY through continuous research, starting from the independent research and development of equipment, has successively conquered key technologies such as temperature control, interface flatness and stability in the semiconductor single crystal production process, and developed solar energy Germanium wafers, gallium arsenide wafers, indium phosphide wafers and other products have reached the world's advanced and domestic leading level of similar products. The products are also exported to developed countries such as Germany and South Korea. YNZY has undertaken a total of 12 national, provincial and ministerial projects such as the National 863 Plan, the Ministry of Industry and Information Technology's major industrial foundation project, and the national key research plan. The implementation of multiple projects has an important leading role in the development of new materials upstream and downstream industrial chain extension. .
"In order to meet the high-tech demand at home and abroad, we will focus on large-diameter wafers, and will develop germanium wafers, gallium arsenide wafers and indium phosphide wafers to larger sizes, and will continue to move toward ultra-thin wafers and improve wafer pass rates. We will continue to reduce costs, increase the degree of industrialization, and build an aircraft carrier cluster for China`s optoelectronic semiconductor materials,” said Bao Wendong, chairman of YNZY.