Research on the evolution of innovation characteristics in China’s semiconductor industry from the perspective of dual networks

Based on SNA, this paper uses China’s 2016-2021 cooperative patents to construct a dual network, including cooperative innovation network and technological innovation network, to explore the evolution characteristics of China’s semiconductor industry innovation network. The results show that the level of cooperative innovation in semiconductor industry in China is greatly improved, but the link between entities is weak; The core nodes of the cooperative innovation network are mainly BOE and Tsinghua University, etc., which are stable and changing; The types of technologies flowing behind the cooperative innovation network have increased, but there is still room for further improvement in integrated circuit design, photolithography technology, and others; The moderate redundancy of cooperative innovation network is conducive to increasing the proportion of heterogeneous resources in technological innovation network. The research has both practical and theoretical significance.