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3차원 구조 NAND flash memory의 mechanical stress 분포 및 온도 영향성에 관한 연구
남궁연(Yeon Namkoong),양형준(Hyungjun Yang),안준섭(JunSeop An),송윤흡(Yunheub Song) 대한전자공학회 2016 대한전자공학회 학술대회 Vol.2016 No.6
According to Moor’s law, Scaling of NAND flash memory was continued but nowadays two dimensional structure was reached the physical limit. Consequently three dimensional structure was researched and produced. Mechanical stress occurs reliability problem and change electrical characteristics. Especially in multi-layer structure, mechanical stress is one of the most important factor that determines cell characteristics and reliability. In this paper, we investigate mechanical stress distribution and effect of annealing temperature in 3D NAND flash memory.
건식공정 바텀애시 경량 잔골재를 사용한 내화모르타르의 특성
김명훈 ( Myung Hoon Kim ),남궁연 ( Yeon Namkoong ) 한국건축시공학회 2016 한국건축시공학회 학술발표대회 논문집 Vol.16 No.1
Bottom ash generated in thermoelectric power plants could be used as substitutional fine aggregate such as pearlite of fireproof mortar due to its lightweight and porosity. Development of substitutional materials is necessary because pearlite has several problems such as production of carbon dioxide during manufacturing process and high price. This study is to confirm the possibility of air cooling process bottom ash for fireproof mortar as substitutional material of pearlite through basic experiment.