16:54 Mar 20, 2009 |
English to Chinese translations [PRO] Science - Physics Additional field(s): Electronics / Elect Eng | ||||
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4 | Chinese |
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4 | 施體 |
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Chinese Definition from 成功大學電機系通識教育: 半導體晶體內如果只有本身的原子而沒有其他的雜質原子,這樣的一個半導體材料叫做本質半導體。 如果在本質半導體中摻入第五族的原子像磷,砷,或銻等,因為這些原子具有五個價電子,所以當它取代四價原子像矽時,其中四個價電子會和周圍的矽原子形成共價鍵,剩下的一個電子就解離成為可以導電的自由電子,而雜質本身就成為帶正電的離子。由於這些雜質可以提供自由電子,所以就把他們稱為施體(donor)。 Example sentence(s):
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施體 Definition from Wikipedia: 「半導體之所以能廣泛應用在今日的數位世界中,憑藉的就是其能藉由在其晶格中植入雜質改變其電性,這個過程稱之為摻雜。摻雜進入本質半導體的雜質濃度與極性皆會對半導體的導電特性產生很大的影響。 一般而言,摻雜物依照其帶給被摻雜材料的電荷正負被區分為施體(donor)與受體(acceptor)。」 Example sentence(s):
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