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Field Limiting Ring 구조의 해석적 모델
라경만,정상구,최연익,김상배 대한전자공학회 1994 전자공학회논문지-A Vol.31 No.7
A novel concept for the analysis of planar devices with a field limiting ring(FLR) is presented which allows analytic expressions in a normalized form for the potential distributions of FLR structure. Based on the method of image charges the main and ring junctions with identical cylindrical edges are kept to be two different equipotential surfaces. The potential relations between main and ring junction of the FLR structure are compared with 2-dimensional device simulation program. MEDICI. A good accordance is found. Comparisions with experimental data reported for the optimum ring spacing and the relative improvement of the breakdowm voltages in the FLR sturcture show the validity of the concept. The normalized expressions allow a universal application regardless to the junction depths and background doping levels.
羅慶(Luo Qing) 중국문화연구학회 2011 중국문화연구 Vol.0 No.19
Tai Pingjing is one of the classic masterpieces of Taoism in DonHan dynasty. In the late period of DongHan dynasty, the disyllabic function words developed so quickly. Some words which are from ancient times become to be disyllabic function words. but others are still in the period of transition from phrase to word. There are 148 disyllabic function words in Tai Pingjing, every kind of word-building ways have appeared. The author chooses disyllabic conjunctions from them, and analysis the semantics classification and grammatical functions of them. On the one hand, the author analysis the number and the rate of the disyllabic function words, and depict the trait of them: on the other hand, compare the disyllabic function words which appeared in DongHan dynasty to which appeared in modern times. The author proposes to reveal the formation and development process of the disyllabic function words.