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AI 반도체 산업의 기술 발전 방향과 경제 안보에 관한 연구: 미국 특허 데이터를 이용한 분석을 중심으로
손동연(Dong-Yeon Son),이종호(Jong-Ho Lee),오철(Chul Oh) 한국디지털콘텐츠학회 2023 한국디지털콘텐츠학회논문지 Vol.24 No.7
This study analyzed technologies related to artificial intelligence (AI) semiconductors that have become the core of economic security. First, we classified technologies into first, second and third generation, and then measured the localization, concentration, and appropriability of technologies that are representative indicators of the Schumpeterian innovation system. The patent citation analysis on patents filed in the U.S. over the past 20 years reveal the security blocks already formed in the first and second generations and that incumbents existed. As the third generation is in the early stage of technological development, there are no leading technology owners and competitors. Therefore, we confirmed a possibility of creating independent economic security, by engaging in standardization technology.
황경환 ( Kyong Hwan Hwang ),김종민 ( Jong Min Kim ),정대룡 ( Dae Ryong Jung ),김천중 ( Chun Joong Kim ),문태호 ( Tae Ho Moon ),손동연 ( Dong Yeon Son ),박병우 ( Byung Woo Park ) 대한금속재료학회 ( 구 대한금속학회 ) 2007 ELECTRONIC MATERIALS LETTERS Vol.3 No.4
To understand the photoluminescence (PL) mechanisms of nanophosphors, various experiments were conducted. The SnO2:Eu3+ nanoparticles were synthesized and calcined at various temperatures. The increase of the PL intensities with the increasing calcination temperature was due to the removal of the hydroxyl groups, and to the decrease of the surface area caused by the growth of the nanoparticles. Additionally, Mn-doped zinc sulfide monodispersed-nanoparticles were synthesized. The influence of Mn doping concentration was investigated with the decrease of crystallinity and capping. The increased crystallinity and removal of water/organic capping were suggested for the reasons of increased PL property.