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- 저자 : SeongJeKim (검색결과 5 건)
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Hole Mobility Enhancement in Strained SiGe Grown on Silicon-on-Insulator p-MOSFETs
Seong-Je Kim,백지영,심태헌,이훈주,박재근,김관수,조원주 한국물리학회 2008 THE JOURNAL OF THE KOREAN PHYSICAL SOCIETY Vol.53 No.4
The hole mobility of p-metal-oxide-semiconductor field-effect transistors (MOSFETs) with a compressively-strained SiGe channel grown on a silicon-on-insulator (SOI) structure was investigated. In particular, the dependence of the mobility behavior on the effective field (Eeff ) was investigated by varying the Ge concentration in the SiGe layer. We observed that the mobility enhancement factor increased with both the Ge concentration and the Eeff . In addition, we confirmed that the hole mobility enhancement factor caused by the compressively-strained SiGe channel grown on a SOI structure persisted in the higher Eeff range and that it was higher than that of the silicon channel structure. This was due to the fact that the strain and the confinement effects both work to maintain a constant energetic splitting between the heavy hole and the light hole bands.
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Seong-Je Kim,심태헌,박재근 한양대학교 세라믹연구소 2009 Journal of Ceramic Processing Research Vol.10 No.4
Recessed ultra-thin body (UTB) silicon-on-insulator (SOI) n-meta-oxide-semiconductor field-effect transistors (MOSFETs) with a top silicon thickness of less than 10 nm were successfully fabricated. We investigated the dependence of their electrical characteristics, such as subthreshold conduction and effective mobility, on the operating temperature the different channel thicknesses of less than 10 nm. In the case of a 4.5-nm-channel UTB SOI n-MOSFET, it was observed that as the temperature rises, the subthreshold conduction characteristic became sensitive to temperature, while the leakage current was insensitive to temperature. In addition, the effective mobility of a 4.5-nm-thick UTB SOI n-MOSFET decreased because the carrier transport was suppressed by scatterings both from surface and interface roughness scatterings. In particular, we confirmed that mobility differences at the effective fields of 0.1 and 0.3MV/cm decrease with a rise in temperature resulting from the mobility being dominated by phonon scattering rather than scatterings from surface roughness.
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Who Would Care for Post-Imperial Broken Society?: Harold Pinter`s The Caretaker
( Seong Je Kim ) 한국영어영문학회 2010 영어 영문학 Vol.56 No.6
An analogical reading of socio-historical context of Harold Pinter`s The Caretaker employs some postcolonial discursive analyses of post-imperial British capitalistic interests in their post war reconstruction. It is also concerned with causes of so-called broken society. The Caretaker dramatizes minimal actions: a tramp is invited by the elder brother; a job as caretaker is offered; he is reluctant to accept the first offer by the elder brother, but is willing to the second by the younger; eventually, he is excluded because he makes noises while dreaming. These trivial actions produce serious and critical speech acts with their socio-historical implications. The tramp Davies is socially and thereby existentially excluded from the centre of the cold, banished to even colder peripheries. The audience face to the question. Why is Davies excluded? This study tries to answer the question, uncovering deep-rooted capitalistic racism, and reading its symptoms. Even after 50 years The Caretaker was staged, post-imperial broken society tries to operate the betrayals of disparity between the cause and effect of what has gone wrong. Pinter confirms that the action of the play takes place in a house in west London. With the city of London as its capitalistic centre, British imperialism lavished much of its wealth which has only served sectional interests dividing people against themselves. Pinter dramatizes the root of broken society. On the one hand, Pinter foregrounds the very general conflicts between individuals and forms of power; on the other hand, he underlies the very specific strategies of socio-historical exploitation, domination and exclusion.
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Seong Je Kim 위기관리 이론과 실천 2021 Journal of Safety and Crisis Management Vol.11 No.1
As part of measures to prevent the occurrence and spread of infections in the health and medical system related to COVID-19, which is a global pandemic, we propose a plan to utilize it through the results of the efficacy test of anti-microbial copper film for window attachment. The Korea Institute for Construction and Living Environment (KCL) has certified 99.9% of the efficacy of anti-microbial copper films, and the results of the “Activity Removal Performance Evaluation of COVID-19 in Antimicrobial Films” certification test have proven to deactivate the coronavirus with satisfactory results. At room temperature, more than 100,000 Corona 19 viruses, 10,000 and 1,000 were exposed to the surface of anti-bacterial films for 24 hours, respectively, and 97.2%, 96.7%, and 90.6%, respectively, confirmed that they lost their infectious power. In the future, the use of anti-microbial copper films through additional government-led clinical trials is necessary to industrialize health.
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