光刻机技术实现突破性进展，人工智能AIETF（515070）盘中涨超2%

Group 1 - The A-share market indices opened high and showed strong fluctuations, with all three indices rising over 1% [1] - The technology sector experienced a strong increase, particularly in the storage sector, which saw renewed gains in the afternoon [1] - The AI ETF (515070) expanded its gains to 2.31%, with constituent stocks such as Xinyisheng and Dahua rising over 8% [1] Group 2 - A team from Peking University successfully applied cryo-electron tomography to analyze the microscopic behavior of photoresists, achieving a resolution better than 5 nanometers [1] - This technology allows for the real-time, high-resolution observation of photoresists, overcoming limitations of traditional methods [1] - The proposed process significantly reduced the number of lithography defects on 12-inch wafers by over 99%, while being compatible with existing production lines [1] Group 3 - Lithography is the most time-consuming and challenging process in integrated circuit manufacturing, accounting for about 50% of the manufacturing time and approximately one-third of production costs [1] - Photoresists are critical consumables in the lithography process, and their quality significantly impacts the lithography process [1] Group 4 - The AI ETF (515070) tracks the CS AI Theme Index (930713), selecting stocks that provide technology, basic resources, and applications for artificial intelligence [2] - The top ten weighted stocks include leading domestic technology companies such as Zhongji Xuchuang, Xinyisheng, and Hikvision [2]