| Summary: | 碩士 === 大葉大學 === 管理學院碩士在職專班 === 98 === In this study, the patent citation is used to research the technology trajectory and positioning of the global top ten semiconductor manufacturers. The patent database used in this study is from the United States Patent and Trademark Office (USPTO). There are selected 4375 patents which are issued from January 1st of 2001 to December 31st of 2008. The patent database is diveded to four intervels to do longitudinal analysis ac-cording to the Moore’s Law.
The findings in this study are as following:
1. In the four intervals, through multi-scale analysis, cluster analysis and discrimi-nant analysis, the world's top ten semiconductor manufacturers are classfied into three clusters.
2. Speaking of changing of cluster property, TSMC in 2001 to 2008 is unique in the technology. UMC's patent numbers decrease in the later period and there are less similarities in comparing UMC with TSMC or Chartered in technology. There are more similarities in technology between Chartered and TSMC in the later period. SMIC increases the output of patents and its technology is similar with TSMC or Chartered. Dongbu is similar to other companies at the beginning, but its technology is different gradually at the later satge. X-Fab’s HHNEC’s and He Jian’s patented technologies are not similar with other companies. Furthermore, SMC increases the output of patents at the later satge and its technology is simi-lar with Dongbu.
|
|---|
