Patent backward citation is an observant index that reveals the manufacturer’s intention of following specific technological domains and demarcates the technological boundaries of advanced competitors. This study uses the data on patent backward citation to determine the technology followership layout of strategic groups of IC design Industry in Taiwan, and analyze the capabilities and financial performances of these strategic groups. The results indicate that in the strategic group network formed by technological development strategies is centered on large-scale manufacturers. Large manufacturers with more sufficient resources prefer internationalized, unique, and broad technological development strategies. The strategic groups prefer unique technological development strategies that could acquire higher asset returns.