Recently, Xinjiang Zhonghe Co., Ltd. has successfully developed ultra-high purity aluminum above 6N (99.9999%), filling in the domestic gap.
The test and analysis report issued by the EAG laboratory of Toulouse, France, an international third-party testing institution, shows that the key trace elements of ultra-high purity aluminum samples above 6N provided by Zhonghe in Xinjiang have reached the level of ppb (concentration up to 1 / 1 billion), meeting the technical requirements of high-end semiconductor production. The successful research and development of ultra-high purity aluminum above 6N grade has provided a stable and reliable ultra-high purity aluminum material for the development of China's high-end semiconductor production technology, and achieved a historic breakthrough in ultra-high purity aluminum purification technology.
The research and development of ultra-high purity aluminum above 6N grade is a systematic scientific and technological innovation project independently developed by Zhonghe in Xinjiang. In the process of more than one year of research and development, Xinjiang Zhonghe High Purity Aluminum R & D team is based on the company's unique "customized common aluminum + three-layer purification + segregation purification" high purity aluminum purification industry chain, gives full play to the advantages of the industrial chain and uses the high-quality raw materials provided by internal universal aluminum electrolysis to overcome the key elements and the core difficulties of anti-segregation elements in the ultra-high purity purification stage of 4N-5N. At the same time, through repeated experiments, the R & D team found and optimized the best matching parameters of purification process core equipment and process technology, completely solved the bottleneck problem of secondary pollution in ultra-high purity aluminum purification, and successfully completed the research and development project of ultra-high purity aluminum above 6N grade.
The successful development of Xinjiang Zhonghe 6N ultra-high purity aluminum is of great significance to promote the localization of high-end semiconductor chip materials, indicating that Xinjiang Zhonghe and high-purity aluminum purification technology has reached the world's advanced level.
