Core Viewpoint - The trend of Chinese experts and scholars returning to China from the U.S. continues, exemplified by advanced chip manufacturing engineer Xu Zhenpeng joining Shanghai Jiao Tong University as an assistant professor after leaving Atomic Semi, a startup focused on 3D printing technology for chip production [1][3]. Group 1: Xu Zhenpeng's Background and Career - Xu Zhenpeng was a core team member at Atomic Semi, which aims to make chip production faster and cheaper than traditional methods that rely on expensive equipment [3]. - He holds degrees from Beihang University, the University of Florida, and UCLA, with research focused on advanced additive manufacturing technologies [3][4]. - His work includes developing high-speed 3D printing methods for small components essential for future smart wearable devices and sensors [5]. Group 2: Trends in Chinese Scholars Returning to China - A significant number of top scientists are returning to China due to discriminatory policies against international students and scholars in the U.S. [9]. - Research indicates that from 2010 to 2021, around 20,000 Chinese scientists left the U.S., with two-thirds choosing to return to China [9][10]. - The number of Chinese students studying in the U.S. peaked in 2019 but has since declined by nearly 30%, reflecting a shift in talent migration [10].