http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
이기욱 ( Gi-wook Lee ),김연아 ( Yeona Kim ),원상현 ( Sang-hyeon Won ),배경남 ( Kyung-nam Bae ),이정수 ( Jungsoo Lee ),신기혁 ( Kihyuk Shin ),김훈수 ( Hoon-soo Kim ),김병수 ( Byung-soo Kim ),김문범 ( Moon-bum Kim ),고현창 ( Hyun-ch 대한피부과학회 2023 대한피부과학회지 Vol.61 No.4
The phenotypic variability of variant Turner syndrome is wide, ranging from characteristic clinical features to those that are hardly distinguishable from the general population. A 4-year-old girl presented with multiple brownish macules and patches on the trunk and upper extremities as well as axillary freckles. Exome sequencing and chromosomal microarray testing revealed a microdeletion at Xp22.33p22.11 leading to a diagnosis of Turner syndrome. Here we describe an unusual case of variant Turner syndrome with multiple café-au-lait spots. (Korean J Dermatol 2023;61(4):244∼247)
이진수 ( Jinsu Lee ),이기욱 ( Gi-wook Lee ),신준오 ( Jun-oh Shin ),노동영 ( Dongyoung Roh ),김연아 ( Yeona Kim ),원상현 ( Sang-hyeon Won ),이정수 ( Jungsoo Lee ),신기혁 ( Kihyuk Shin ),김훈수 ( Hoonsoo Kim ),고현창 ( Hyunchang Ko 대한피부과학회 2024 대한피부과학회지 Vol.62 No.6
Pyoderma gangrenosum (PG) is a neutrophilic dermatosis characterized by non-infectious ulceration of the skin. It is associated with various systemic diseases, including Takayasu arteritis (TA), rheumatoid arthritis, and inflammatory bowel disease. Notably, the co-occurrence of PG and TA is more frequent among Asians. Here, we present a rare case of TA associated with PG. A 42-year-old woman presented with recurrent ulcers affecting her legs, trunk, arms, and face, which had been refractory to various treatments for 7 years. Recently, the patient had experienced weakness in her left leg, dizziness, and a fever that had persisted for more than a month. Computed tomography angiography revealed thickening and irregularities in the common carotid arteries, right subclavian artery, and aortic arch. TA was diagnosed, following which treatment was initiated with systemic corticosteroids. It is important to consider TA in patients with PG, particularly in young women. (Korean J Dermatol 2024;62(6):353∼357)
전기외과술로 치료한 안면의 다발성 피부 Rosai-Dorfman Disease 1예
이진수 ( Jinsu Lee ),이기욱 ( Gi-wook Lee ),신준오 ( Jun-oh Shin ),노동영 ( Dongyoung Roh ),김연아 ( Yeona Kim ),원상현 ( Sang-hyeon Won ),이정수 ( Jungsoo Lee ),신기혁 ( Kihyuk Shin ),김훈수 ( Hoonsoo Kim ),고현창 ( Hyunchang Ko 대한피부과학회 2023 대한피부과학회지 Vol.61 No.10
Cutaneous Rosai-Dorfman disease (RDD) is a rare, benign condition mainly affecting the lymph nodes and sometimes involving the skin. RDD is notorious for its poor response to medication, and surgery is often the preferred treatment option for limited lesions. Herein, we present a case of cutaneous RDD in a 49-year-old woman with multiple facial nodules that showed minimal response to treatment with steroids, isotretinoin, and methotrexate. The diagnosis of cutaneous RDD was confirmed based on histopathological examination. The patient showed minimal response to medication; however, electrosurgery resulted in a relatively good cosmetic response. The present case demonstrates that electrosurgery can be an effective treatment option for cutaneous RDD, especially in case of patients with multiple lesions. The rarity of this disease and the limited reports on its management highlights the need for further research on the efficacy of different surgical modalities for cutaneous RDD. (Korean J Dermatol 2023;61(10):639∼642)
Cu pillar 범프의 금속간화합물 성장과 계면접착에너지에 관한 연구
임기태,김병준,이기욱,이민재,주영창,박영배,Lim, Gi-Tae,Kim, Byoung-Joon,Lee, Ki-Wook,Lee, Min-Jae,Joo, Young-Chang,Park, Young-Bae 한국마이크로전자및패키징학회 2008 마이크로전자 및 패키징학회지 Vol.15 No.4
Thermal annealing and electromigration test were performed at $150^{\circ}C$ and $150^{\circ}C,\;5{\times}10^4\;A/cm^2$ conditions, respectively, in order to compare the growth kinetics of intermetallic compound(IMC) in Cu pillar bump. The quantitative interfacial adhesion energy with annealing was measured by using four-point bending strength test in order to assess the effect of IMC growth on the mechanical reliability of Cu pillar bump. Only $Cu_6Sn_5$ was observed in the Cu pillar/Sn interface after reflow. However, $Cu_3Sn$ formed and grew at Cu pillar/$Cu_6Sn_5$ interface with increasing annealing and stressing time. The growth kinetics of total($Cu_6Sn_5+Cu_3Sn$) IMC changed when all Sn phases in Cu pillar bump were exhausted. The complete consumption time of Sn phase in electromigration condition was faster than that in annealing condition. The quantitative interfacial adhesion energy after 24h at $180^{\circ}C$ was $0.28J/m^2$ while it was $3.37J/m^2$ before annealing. Therefore, the growth of IMC seem to strongly affect the mechanical reliability of Cu pillar bump. 열처리 및 electromigration에 따른 Cu pillar 범프 내 금속간화합물의 성장거동을 비교하기 위해서 각각 $150^{\circ}C$와 $150^{\circ}C,\;5{\times}10^4\;A/cm^2$의 조건에서 실험을 실시하였다. 또한 금속간화합물의 성장이 Cu pillar 범프 접합부의 기계적 신뢰성에 미치는 영향을 평가하기 위해 4점굽힘강도실험을 실시하여 열처리에 따른 계면접착에너지를 평가하였다. 리플로우 후에 Cu pillar/Sn 계면에서는 $Cu_6Sn_5$만이 관찰되었지만, 열처리 및 electromigration 실험 시간이 경과함에 따라 $Cu_3Sn$이 Cu pillar와 $Cu_6Sn_5$ 사이의 계면에서 생성되어 $Cu_6Sn_5$와 함께 성장하였다. 전체($Cu_6Sn_5+Cu_3Sn$)금속간화합물의 성장거동은 Cu pillar 범프 내 Sn이 모두 소모될 때 변화하였고, 이러한 금속간화합물 성장거동의 변화는 electromigration의 경우가 열처리의 경우보다 훨씬 빠르게 나타났다. 열처리 전 시편의 계면접착에너지는 $3.37J/m^2$이고, $180^{\circ}C$에서 24시간동안 열처리한 시편의 계면접착에너지는 $0.28J/m^2$로 평가되었다. 따라서 금속간화합물의 성장은 접합부의 기계적 신뢰성에 영향을 주는 것으로 판단된다.
Au stud 범프의 금속간화합물 성장거동에 미치는 시효처리의 영향
임기태,이장희,김병준,이기욱,이민재,주영창,박영배,Lim, Gi-Tae,Lee, Jang-Hee,Kim, Byoung-Joon,Lee, Ki-Wook,Lee, Min-Jae,Joo, Young-Chang,Park, Young-Bae 한국재료학회 2008 한국재료학회지 Vol.18 No.1
Microstructural evolution and the intermetallic compound (IMC) growth kinetics in an Au stud bump were studied via isothermal aging at 120, 150, and $180^{\circ}C$ for 300hrs. The $AlAu_4$ phase was observed in an Al pad/Au stud interface, and its thickness was kept constant during the aging treatment. AuSn, $AuSn_2,\;and\;AuSn_4$ phases formed at interface between the Au stud and Sn. $AuSn_2,\;AuSn_2/AuSn_4$, and AuSn phases dominantly grew as the aging time increased at $120^{\circ}C,\;150^{\circ}C,\;and\;180^{\circ}C$, respectively, while $(Au,Cu)_6Sn_5/Cu_3Sn$ phases formed at Sn/Cu interface with a negligible growth rate. Kirkendall voids formed at $AlAu_4/Au$, Au/Au-Sn IMC, and $Cu_3Sn/Cu$ interfaces and propagated continuously as the time increased. The apparent activation energy for the overall growth of the Au-Sn IMC was estimated to be 1.04 eV.