The first batch of high-purity silicon wafers from the first phase of Qinghai Lihao Semiconductor’s 50,000-ton production project has been successfully produced
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On August 22, the first batch of high-purity silicon wafers produced in the first phase of Qinghai Lihao Semiconductor’s 50,000-ton production project was successfully manufactured. The silicon wafers produced this time had good growth patterns, and their quality met the expected standards, enabling a high-quality start to production. The Lihao project in Qinghai covers an area of 2,600 mu, with a total investment of 18 billion yuan; it is being built in three phases to establish a production facility capable of manufacturing 200,000 tons of high-purity crystalline silicon per year. On July 30, Qinghai Lihao Semiconductor Materials Co., Ltd. held a ceremony to mark the commissioning of the first-phase high-purity silicon crystal project as well as the start of construction on the second-phase project, just 20 days after the first phase went into operation.
On July 30, the commissioning ceremony of the first-phase high-purity crystalline silicon production facility of Qinghai Lihao Semiconductor Materials Co., Ltd. and the groundbreaking ceremony for the second-phase project were held grandly in Nanchuan Industrial Park, Xining Development Zone, under the theme of \"Being Grateful and Striving Forward in the New Era to Create a Better Future.\"
It has taken 5 months since the construction of the cryogenic hydrogenation unit in Section 3 of the mechanical and electrical equipment installation for this project officially began in March 2022. To ensure adherence to the project timeline, the project team worked closely with the client. All employees overcame various objective challenges such as high altitudes, harsh weather conditions, and recurring outbreaks of COVID-19, by allocating resources efficiently and carrying out work at an accelerated pace. Especially in pipeline welding work, given the large scale of piping to be welded (approximately 210,000 inches in total), the variety of welding materials used, and the high requirements for welding techniques, the project team applied BIM-plus integrated intelligent all-position pipeline prefabrication welding technology. Automatic welding production lines were introduced, and BIM technology was incorporated into the pipeline prefabrication and welding process to optimize the overall layout of the pipelines, accurately determine the positions of pipe fittings, and precisely calculate the prefabrication dimensions. This approach helped to save costs and improve efficiency, laying a solid foundation for completing the project milestones and objectives quickly and effectively. It received unanimous recognition and praise from the client.
The contract value for this project is approximately 80 million yuan, and as of now, 24 million yuan worth of output has been achieved. Among them, the installation of process pipelines in duct 083 (G, H, and parts of D), the laying of cable trays and main cables, the construction of the physical structure of the 802A hydrogen production unit, and the construction of the physical structure of the 223B refrigeration station have all been completed; these tasks are now in the phase of final inspections, adjustments, purging, and pressure testing. Currently, the project as a whole has entered an accelerated phase, with physical installation expected to be completed by the end of August.
It’s very fast; you can recoup your investment quickly while the price is still high:lol
I didn’t even know such a project existed; it’s quite low-key