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    Please use this identifier to cite or link to this item: http://asiair.asia.edu.tw/ir/handle/310904400/405


    Title: 高壓功率元件之3D 效應
    3D RESURF Effect For LDMOS Devices
    Authors: 林敬哲
    Contributors: 資訊工程學系碩士班
    Date: 2009
    Issue Date: 2009-10-09 08:38:32 (UTC+0)
    Publisher: 亞洲大學
    Abstract: 最近這幾年,由於液晶與電漿顯示器,LED與通訊產品需求量大,使得功率元件越來越重要,在未來的趨勢,將功率元件與低電壓電路整合在同一片晶片上,而其中LDMOS顯得非常的重要,在傳統的2D模擬往往無法模擬特殊佈局的元件,其中包含Racetrack或finger的佈局,因此本論文即以3D模擬為目標,利用Sentaurus simulation tool來模擬Power Device的LDMOS,Power Device的LDMOS在3D模擬結果我們發現元件會產生嚴重Current Crowding Effect,這是傳統的2D模擬無法呈現,所以本論文首先題出利用兩種方法來降低元件Current Crowding Effect,第一種方式就是改變Nd濃度,可以藉由Nd濃度改變可以控制Drain端與Field Plate端電場的大小,進而改善Current Crowding Effect。
    第二種方式為增加rN寬度,Drain端的電場隨著rN寬度增加而降低,進而加以改善元件Current Crowding Effect。
    最後本論文還模擬了Buried P-top LDMOS發現可藉由buried P-top增加Nd濃度改進元件崩潰電壓及降低R-on達到LDMOS最佳化的設計。
    Appears in Collections:[Department of Computer Science and Information Engineering] Theses & dissertations

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