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600 V급 IGBT Single N+ Emitter Trench Gate 구조에 따른 전기적 특성
신명철,육진경,강이구,Shin, Myeong Cheol,Yuek, Jinkeoung,Kang, Ey Goo 한국전기전자재료학회 2019 전기전자재료학회논문지 Vol.32 No.5
In this paper, a single N+ emitter trench gate-type insulated gate bipolar transistor (IGBT) device was studied using T-CAD, in order to achieve a low on-state voltage drop (Vce-sat) and high breakdown voltage, which would reduce power loss and device reliability. Using the simulation, the threshold voltage, breakdown voltage, and on-state voltage drop were studied as a function of the temperature, the length of time in the diffusion process (drive-in) after implant, and the trench gate depth. During the drive-in process, a $20^{\circ}C$ change in temperature from 1,000 to $1,160^{\circ}C$ over a 150 minute time frame resulted in a 1 to 4 V change in the threshold voltage and a 24 to 2.6 V change in the on-state voltage drop. As a result, a 0.5 um change in the trench depth of 3.5 to 7.5 um resulted in the breakdown voltage decreasing from 802 to 692 V.
이종접합 Gate 구조를 갖는 수평형 NiO/Ga<sub>2</sub>O<sub>3</sub> FET의 전기적 특성 연구
이건희 ( Geon-hee Lee ),문수영 ( Soo-young Moon ),이형진 ( Hyung-jin Lee ),신명철 ( Myeong-cheol Shin ),김예진 ( Ye-jin Kim ),전가연 ( Ga-yeon Jeon ),오종민 ( Jong-min Oh ),신원호 ( Weon-ho Shin ),김민경 ( Min-kyung Kim ),박철환 ( 한국전기전자재료학회 2023 전기전자재료학회논문지 Vol.36 No.4
Gallium Oxide (Ga<sub>2</sub>O<sub>3</sub>) is preferred as a material for next generation power semiconductors. The Ga<sub>2</sub>O<sub>3</sub> should solve the disadvantages of low thermal resistance characteristics and difficulty in forming an inversion layer through p-type ion implantation. However, Ga<sub>2</sub>O<sub>3</sub> is difficult to inject p-type ions, so it is being studied in a heterojunction structure using p-type oxides, such as NiO, SnO, and Cu<sub>2</sub>O. Research the lateral-type FET structure of NiO/Ga<sub>2</sub>O<sub>3</sub> heterojunction under the Gate contact using the Sentaurus TCAD simulation. At this time, the VG-ID and VD-ID curves were identified by the thickness of the Epi-region (channel) and the doping concentration of NiO of 1 × 10<sup>17</sup> to 1 × 10<sup>19</sup> cm<sup>-3</sup>. The increase in Epi region thickness has a lower threshold voltage from -4.4 V to -9.3 V at I<sub>D</sub> = 1 × 10<sup>-8</sup> mA/mm, as current does not flow only when the depletion of the PN junction extends to the Epi/Sub interface. As an increase of NiO doping concentration, increases the depletion area in Ga<sub>2</sub>O<sub>3</sub> region and a high electric field distribution on PN junction, and thus the breakdown voltage increases from 512 V to 636 V at I<sub>D</sub> =1 × 10<sup>-3</sup> A/mm.
申明徹 안성산업대학교 1992 論文集 Vol.24 No.-
機械移秧栽培에 알맞은 施肥量 및 施肥方法을 究明하고자 圃場試驗을 實施하였는데 그 結果를 要約하면 다음과 같다. 1. 窒素施肥量間 ㎡당 穗數, 穎花數는 15㎏수준에서 현저히 많았고 登勢比率도 15㎏수준에서 높았으며 千粒重은 12㎏수준에서 약간 높았다. 2. 窒素分施 方法間 ㎡당 穗數는 出穗前 32日과 15日, 2回 分施한 區가 많았으며 登勢比率은 基肥-分蘖肥-穗肥-實肥-가 50%-20%-20%-10%인 區가 높았다. 3. 葉位別 葉身長에 있어서 止葉과 第三葉身長은 出穗前 32日 과 15日 2回 分施한 區가 현저히 길었으며 第一,第三,第三節間長도 위의 경우와 마찬가지로 출수전 32日과 15日 분시구에서 가장 길었다. 4. 地上部 乾物重은 窒素水準間에서 20㎏수준이 가장 무거웠으며 分施方法間에는 12㎏과 20㎏수준에서는 출수전 32日과 15日 分施區가 가장 무거웠으나 15㎏수준에서는 기비중점인 70%-0%-20%-10%區가 가장 무거웠다. 5. 收量에 있어서는 窒素施肥量間, 施肥量과 分施方法 相互間에 아무런 有意差가 認定되지 않았지만 分施方法間에는 有意差가 認定되었다.窒素施肥量間에는 15㎏수준에서 가장 收量이 많았고 分施方法間에는 基肥重點區인 70%-0%-20%-10%區가 가장 收量이 높았다. A field experiment was conducted to find nitrogen level and split application method for mechanical transplanting culture of rice plant at Anseong in 1991. With variety of "Chucheongbyeo“, 4 split application methods in cluding 40-20-20-0-10-10(basal-tillering-32days before heading-25 DBH-15DBH-rice heading) were tested at 12^kg, 15^kg, 20^kg nitrogen level per 10 a. The results are summarized as follows ; 1. The number of panicles per hill and the number of spikelets per panicle of 15^kg level per 10 a were the most, the percentage of ripened grains of 15^kg level per 10 a was the highest among 3 amounts of nitrogen fertilizer, but the 1,000 grains weight of 12^kg level per 10 a was the heavist among 3 amounts of nitrogen fertilizer. 2. The number of panicles per ㎡ of 40-20-30-0-10-10 plot was most and the percentage of ripined grains of 50-20-0-20-0-10 plot was the highest among 4 split application methods. 3. The flag leaf of 40-20-20-0-10-10 plot and the length of third leaf blade of 70-0-0-20-0-10 plot were the longest among length of leaf blades. 1st, 2nd and 3rd length of internode were lengthened at 40-20-20-0-10-10 plot. 4. Top dry weight of 20^kg level per 10 a was the heavist among 3 amounts of nitrogen fertilizer. Its of 40-20-20-0-10-10 plot was the heavist at 12^kg, 20^kg level per 10a and its of 70-0-0-20-0-10 plot was the heavist at 15^kg level per 10 a. 5. The rough rich yield did not show statistical differences among 3 amounts of nitrogen fertilizer and between amounts of N.fertilizer & split application methods, but showed statistical differences among split application methods. Its of 15^kg level per 10 a was the highest among 3 amounts N.fertilizer and its of 70-0-0-20-0-10 plot was highest among 4 split application methods.
申明徹 안성산업대학교 1984 論文集 Vol.16 No.-
機械移秧栽培의 施肥量과 分施方法을 究明하기 위하여 供試品種 秋晴, 窒素施肥量 10a當 12kg, 15kg, 20kg의 3水準과 分施方法을 4處理로 하여 試驗을 하였는데 그 結果를 要約하면 다음과 같다. 1. 施肥量間에는 穗數와 穗當 粒數는 多肥(20kg/10a)에서 顯著히 많았으나 登熟比率, 千粒重은 12kg水準에서 높았다. 2. 地上部 乾物重은 多肥區가 多少 높은 傾向이며 止葉의 葉面積은 多肥에서 若干 컸고 分施方法에 있어서는 40-20-30-10區가 가장 컸다. 3. 收量에 있어서는 施肥量이나 分施方法間에 有意差가 認定되지 않았지만 窒素 施肥量에 있어서는 12kg水準이 가장 收量이 많았고 基肥-分蘗肥-穗肥-實肥의 比率이 40%-20%-30%-10%區에서 가장 收量이 높았다. A field experiment was conducted to study the amount of fertilizer level and the method of fertilization application in rice transplanting cultivation by machinery. Using Chucheongbyeo, 4 split application methods including 40-20-30-10 were tested at 12kg, 15kg and 20kg N/10a. The results are summarized as follows; 1. The number of panicles per hill and number of spikelets per panicle of 20kg/10a plot were the most among 3 amount of manuring, but the percent of ripened grain and the weight of 1000grains of 12kg/10a plot were the highest among 3 amounts of manuring. 2. Dry matter weight of 20kg/10a plot was the heavist. Leaf area of terminal leaf of 20kg/10a plot was the largest, its of 40%-20%-30%-10% plot was the largest among 4 split application methods. 3. The rough rice yield did not show statistical differences among amounts of manuring and split application methods. But yield of 12kg/10 a was the most among amounts of fertilizer level, the yield of 40%-20%-30%-10% plot was the most.
水稻 機械移秧裁培에 適合한 際草劑의 選拔과 使用體系에 관한 硏究(Ⅰ)
申明徹 안성산업대학교 1988 論文集 Vol.20 No.-
機械移秧栽培에 適合한 除草劑를 選拔하고 雜草防除 體系를 세우기 위하여 秋晴벼를 供試品種으로 12種의 防草劑를 사용하여 試驗을 實施하였는데 그 結果를 要約하면 다음과 같다. 1. 初期處理 除草劑로는 Butachlor+Naproanilide를 移秧後 3日에 處理하는것이 藥害도 없고 收量도 높았다. 2. CNP fb Bentazone과 Chloromethoxgnil fb MCPA와같이 初期除草劑와 中期 莖葉處理 除草를 組合하여 處理한 結課 藥害도 없고 單劑處理보다 除草效果와 收量이 높았다. 3. 收量에 있어서는 除草劑間에 有意差가 認定되어 손除草區가 가장 많았고 다음으로 Butachlor+Naproanilide>CNP fb Bentazone, Chloromethoxgnil fb MCPA> Pretilachlor fb Bentazone順이었다. A field experiment to screen herbicides and chemical weed control systems were investigated in the mechanical transplanting culture of rice. Butachlor + Naproanilide, CNP fb Bentazone and chloromethoxynil fb MCPA controlled weeds satisfactorily and higher yields were obtained with these herbicides treatment.
신명철 한경대학교 2004 論文集 Vol.26 No.1
The objectives of the study were to suggest directions for developing food stuffs in the Primorskii krai, and for strengthening agricultural cooperation among korea, north korea and Russia through reviewing literatures. Through this study, following strategies were suggested; Symbiotic agricultural production system, through strengthening agricultural cooperation among korea, north korea and Russia, should be needed; if Russia provide land of the Primorskii krai, North Korea provide agricultural worker, and South Korea provide funds needed to produce food stuffs, all three nations cooperatively participating in this project will be profitable by it.