Recently, Light: Science & Applications (IF: 20.6), a top-tier international optics journal and sub-journal of Nature, published a groundbreaking research result from Southwest Jiaotong University's Key Laboratory of Photonic-Electronic Integration and Communication-Sensing Convergence (Ministry of Education) and its Information Photonics and Communications Research Team. The study demonstrates a major innovation in photonic integrated chips, a large-scale wafer-level thin-film lithium niobate photonic heterogenous integration chip. Southwest Jiaotong University is the sole affiliation for this paper, with Professor Xie Xiaojun and Ph.D. candidate Wei Chao serving as co-first authors, while Professor Yan Lianshan and Professor Xie Xiaojun are co-corresponding authors. The research was supported by the National Key Research and Development Program of China (Young Scientists Track), the Key Program of National Natural Science Foundation of China (NSFC) and the NSFC Regional Joint Key Program.