6/3專題演講公告 (9:10開始)

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上層分類：系所公告

分類：演講

建立於 2013-05-28, 週二 00:25

最近更新於 2013-10-23, 週三 16:42

發佈於：2013-05-28, 週二 16:26

點擊數：1444

日期：2013/06/3（星期一）
時間：自9時10分至12時10分(有兩位講者)
演講地點(地址)：工綜館B03

日期：2013/06/3（星期一）
時間：自9時10分至12時10分(有兩位講者)
演講地點(地址)：工綜館B03
演講者：Chan Hung SHEK Professor and Associate head 楊逸涵 研發經理
演講者服務單位：City University of Hong Kong, Kowloon Tong, Hong Kong
美仕樂科技國際股份有限公司

演講題目：
Cluster Structures and Magnetic Properties of Two Cobalt-based Metallic Glasses
半導體矽晶圓製程簡介與矽晶圓於太陽能之應用
摘要:
First speech:
Atomic scale structures of metallic glasses are known to dictate a lot of properties, for instance, glass forming ability, mechanical and magnetic properties, etc., of the material. Based on a modified cluster model, two CoSiB metallic glasses (Co63.1B27Si9.9 and Co65B24.4Si10.6) with good mechanical properties and different physical properties have recently been developed by addition of solute atoms within their solubility limit to enhance glass forming ability (GFA). Despite the similar compositions, these two metallic glasses exhibit very different magnetic behaviors. We elucidate the atomic structure of these two metallic glasses by extended X-ray absorption fine structure spectroscopy (EXAFS). The experimental spectra were in good agreement with the predictions of ab initio full multiple scattering theory using the FEFF8.4 code. Besides, the origin of these magnetic behaviors was discussed in view of the EXAFS results and cluster structures of the metallic glasses. This finding has demonstrated that despite the similar compositions, these two metallic glasses consist of different clusters, and hence different magnetic properties, which are dominated by short-range orders (SROs).

In the seminar, the research activities in the Department of Physics and Materials Science, City University of Hong Kong will also be briefly introduced.

Second speech:
半導體元件及製程所使用之基板材料為半導體級單晶矽晶圓，從最初始之矽石原料經提煉為矽原材，經過高溫熔解、長晶過程為單晶晶棒，並經定型、切片、研磨、蝕刻與拋光等製程，成為半導體電子業所使用之不同尺寸單晶矽晶圓。除此次演講對於此做一簡介外，現今能源環保議題發燒下，對於以矽晶圓為基底之太陽能電池也廣泛研究與嘗試提升其光電轉換效率，亦會於此次演講中做一描述。
Brief biography:

Prof. C. H. Shek got his BSc in Engineering (Mechanical Engineering) and PhD from The University of Hong Kong (HKU). Before joining City University of Hong Kong, he worked as an engineer in the Kowloon and Canton Railway Corporation in Hong Kong. His research interests are on the microstructure and properties relationship of bulk metallic glasses, nanocrystalline ceramic and other metallic alloys. He has co-authored over 170 papers in international refereed journals and three book chapters. He also co-own two PRC patents. Prof. Shek has also reviewed research proposals for Australian Research Council and National Science Council of Taiwan. He has acted as expert consultant on numerous cases related to industrial accidents and failure analysis of engineering components to HKSAR Government and major companies in Hong Kong.

楊逸涵

學歷
畢業學校	國別	主修學門系所	學位
私立東海大學	台灣	化學系	學士
國立中正大學	台灣	化學研究所(物化組)	碩士
經歷：
	服務機關	服務部門	職稱
現職
貝里斯商美仕樂科技國際股份有限公司	研發工程部	經理	經理
經歷
	昶昕實業股份有限公司	研究開發處研發二部	副理
	友達光電股份有限公司	單多晶矽研發處	研發副理
	合晶科技股份有限公司	研發處	副理