我国团队攻克新型半导体材料领域难题，关注科创50ETF易方达（588080）等产品中长期投资机会

Market Performance - The Sci-Tech 100 Index increased by 4.5%, the Sci-Tech Composite Index rose by 2.9%, the Shanghai Sci-Tech 50 Component Index went up by 2.6%, and the Shanghai Sci-Tech Growth Index saw a rise of 0.9% this week [1][3]. Industry Developments - A significant breakthrough in the development of new semiconductor materials was achieved by a team from the University of Science and Technology of China, which successfully constructed a programmable, atomically flat "mosaic" heterojunction in two-dimensional ionic soft crystal materials. This technology overcomes the challenges of traditional processes that tend to damage soft crystal structures, paving the way for the development of high-performance light-emitting and integrated devices [1]. Index Composition - The Shanghai Sci-Tech 100 Index consists of 100 stocks with medium market capitalization and good liquidity, focusing on small and medium-sized tech enterprises, with over 80% of its composition in the electronics, biopharmaceuticals, computer, and power equipment sectors [5]. - The Shanghai Sci-Tech Composite Index covers all market securities, focusing on core frontier industries such as artificial intelligence, semiconductors, new energy, and innovative pharmaceuticals, encompassing all 17 primary industries listed on the Sci-Tech Board [5]. - The Shanghai Sci-Tech Growth Index is composed of 50 stocks with high growth rates in revenue and net profit, with over 95% of its composition in high-growth sectors like electronics, power equipment, biopharmaceuticals, and automotive [5]. ETF Tracking - There are currently 19 ETFs tracking the Shanghai Sci-Tech 50 Component Index, 13 ETFs for the Shanghai Sci-Tech 100 Index, 15 ETFs for the Shanghai Sci-Tech Composite Index, and 4 ETFs for the Shanghai Sci-Tech Growth Index, with varying fee rates and tracking errors [5].