长江存储加速推进扩张计划，科创半导体ETF（588170）有望七连阳

Group 1 - The core viewpoint of the articles highlights the optimistic growth trajectory of the semiconductor industry, driven by AI and domestic substitution efforts, with significant performance expectations for Q2 and Q3 of 2025 [1][2]. - The Shanghai Stock Exchange's Sci-Tech Innovation Board semiconductor materials and equipment index rose by 1.60%, with notable increases in constituent stocks such as ChipSource Micro (up 4.83%) and Zhongke Feimeng (up 4.26%) [1]. - The Sci-Tech Semiconductor ETF (588170) experienced a 1.41% increase, reaching a latest price of 1.08 yuan, with a trading volume of 70.83 million yuan and a turnover rate of 26.56% [1]. Group 2 - Yangtze Memory Technologies is accelerating its NAND flash memory capacity expansion, aiming for a 30% market share in China this year and a global capacity share of 15% by the end of 2026 [1]. - The company is implementing a domestic semiconductor equipment localization strategy, achieving breakthroughs in key processes such as etching and deposition, with its first fully domestic equipment NAND production line expected to trial in the second half of the year [1]. - The semiconductor equipment and materials industry is identified as a crucial area for domestic substitution, benefiting from low domestic substitution rates and high potential ceilings, particularly in the context of the AI revolution and technological advancements [2].