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- 저자 : JaegooLee (검색결과 2 건)
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Novel Cell Architecture for High Performance of 512-Mb DRAM with 0.12-㎛ Design Rule
JaegooLee,ChanghyunCho,JuyongLee,MinsangKim,JaekyuLee,SoohoShin,DonghwaKwak,KwanhyeobKoh,GitaeJeong,HongsikJeong,TaeyoungChung,KinamKim 한국물리학회 2002 THE JOURNAL OF THE KOREAN PHYSICAL SOCIETY Vol.41 No.4
In this research, the data retention time was investigated for a high-speed the 0.12-um, low power 512-Mb DRAM (Dynamic Random Access Memory) with 0.12 m design rule. As the technology generation of DRAM has been developed into sub-quarter micron region, the control of the junction leakage current at the storage node has become much more important due to the increased channel doping concentration. In order to obtain high-performance DRAM with the 0.12-m design rule, we propose a novel trench isolation (shallow trench isolation) using self-aligned local field implantation to improve the data retention-time characteristics and to minimize the narrow-width eect in the cell transistor. This scheme reduces both the cell junction leakage current and the capacitance by relaxing the abrupt junction prole at the source and the drain regions. The relaxed junction prole can reduce the electric eld strength of junction and, thus, improve the data retention-time characteristic of the DRAM. We also tried to cure the surface defect by using a gate dual spacer and downstream Si-treatment. A high capacitance is realized by the dual molded oxide capacitor process. This novel storage node structure gives the capacitor much better mechanical stability. With the novel cell architecture, dramatic increases in the data retention time and the device yield were obtained for a 512-Mb DRAM. The proposed cell architecture can be extended fairly well to future high-density DRAM in 0.10 m technology and beyond.
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( Jaegoo Lee ) 대한가정학회 2015 International Journal of Human Ecology Vol.16 No.1
Within the field of international adoption, little research has examined the involvement of fathers in cultural socialization practices. Using secondary data analysis with a sample of 332 international adoptive fathers and mothers, the present study examined international adoptive fathers’ cultural socialization practices and compared these practices with those of international adoptive mothers. The results indicated that 1) family cultural socialization practices mainly engaged in by fathers were those that require little to no integration with people of the children’s race and/or ethnicity, and 2) fathers’ awareness or practices were found to be similar to those of mothers. This study illustrates the importance of continuing research on fathers’ beliefs, attitudes, and practices in relation to the race and birth culture of their internationally adopted children.
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