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The "stuck neck" lithography opportunity is on the "stuck neck" aluminum-lithium alloy


A few days ago, Zhengzhou Qingyan Alloy Technology Co., Ltd. successfully developed a lightweight and high-strength aluminum-lithium alloy, and provided the corresponding brand of aluminum-lithium alloy to the international lithography machine industry giant. Compared with conventional aluminum alloys, the alloy has light weight, high strength, high elastic modulus, excellent low temperature toughness and fatigue resistance. For every 1% lithium added to the alloy, the density decreases by 3% and the elastic modulus increases by 6%. At present, aluminum-lithium alloy has become an important alloy material that countries are competing to develop.

stuck neck

Chip technology is the core component of modern industry and the Internet era, and lithography machine is the key equipment for manufacturing chips. At present, high-precision lithography machine manufacturing technology is only mastered in the Netherlands, the United States, and Japan , Germany and a few companies, among which ASML in the Netherlands is the leader among them, and has occupied up to 80% of the market share, monopolizing the high-end lithography machine market. At the same time, the precision of China's self-produced lithography machines is about 90 nanometers, which is at least 15 years behind the world's most advanced level. Therefore, the lithography machine has become a "stuck neck" key equipment that restricts the rapid development of my country's national economy.

stuck neck



Aluminum-lithium alloy has been researched, tested and produced in my country for nearly 40 years. Melting, forming and heat treatment technology of aerospace aluminum-lithium alloy materials. However, there is still a big gap with the United States and Russia in the basic research, industrial production and application of aluminum-lithium alloys (currently the domestic output is less than 100t, and the foreign output is 30,000t), especially in the fields of aviation, aerospace, and civil aviation passenger aircraft. Similarly, aluminum-lithium alloys have become the "stuck neck" raw materials that restrict the rapid development of national defense and military industries and civil aviation passenger aircraft.


At present, light-weight, high-strength, and high-elastic modulus aluminum-lithium alloys are used in lithography machines as materials for key components, which can improve the overall shock resistance, stiffness and sensitivity of the equipment. Aluminum alloys significantly improve the performance of the equipment. When the "stuck neck" lithography opportunity is on the "stuck neck" aluminum-lithium alloy, both of them reflect the domestic weakness in the field of advanced manufacturing and advanced materials. Materials and equipment are the foundation of industry, affecting the rapid development of the national economy and the strategic guarantee of national defense and military industries. Therefore,

Great efforts must be made to solve the "stuck neck" problem.


There are three methods of producing aluminum-lithium alloys in the world, namely vacuum melting and casting, gas shielding melting + negative pressure hydrogen extraction + semi-continuous casting method and gas shielding melting + spray deposition casting method . Zhengzhou Qingyan Alloy adopts the method of full vacuum casting to produce light-weight and high-strength aluminum-lithium alloys to avoid defects such as pores and oxidation inclusions in the alloy structure. Segregation to ensure the uniformity of chemical composition.


Zhengzhou Light Research Alloy relies on domestic first-class scientific research platforms such as Chinalco Zhengzhou Nonferrous Metals Research Institute, National Aluminum Smelting Engineering Technology Research Center, National Light Metal Quality Supervision and Inspection Center, etc., with domestic first-class laboratory research, The ability of small test, pilot test and mass production, mainly dedicated to the research, development and production of the whole process of melting and casting of aluminum, magnesium, copper and other non-ferrous metal materials - extrusion - rolling - precision machining - surface treatment technology Sales and technical services, and can provide analysis and testing business of non-ferrous alloys, as well as special customization and solutions for other national standard and non-standard non-ferrous alloy products and technologies, providing customers with a full range of products and technical services.