donor

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16:54 Mar 20, 2009
English to Chinese translations [PRO]
Science - Physics
Additional field(s): Electronics / Elect Eng
English term or phrase: donor
Definition from Tyco Electronics Corporation:
A material that is intentionally added to a pure semiconductor material in order to increase the population of free electrons in that semiconductor, resulting in a net negative charge. A semiconductor that has had donor material added to it is called "n-type."

Example sentence(s):
  • If there is a higher concentration of donors than acceptors, the semiconductor is n-type and the free electron concentration is approximately the difference between the two doping concentrations. everything2.com
  • The ionization energy of a donor atom is the energy required to dissociate the electron from the atom and put it in the conduction band of the crystal. answers.com
  • The doping with foreign atoms increases the conductivity of semiconductor crystals. By installing pentavalent foreign atoms (donors) one receives electron excess conductors (n-conductor). ledshift.com
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Summary of translations provided
4Chinese
Gertrude Tsau
4施體
Sze Man Leung, MCIL, DipTrans (IoLET)


Discussion entries: 2





  

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1 day 23 hrs   confidence: Answerer confidence 4/5Answerer confidence 4/5
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):
  • 和本質半導體的價電子比起來,施體電子躍遷至傳導帶所需的能量較低,比較容易在半導體材料的晶格中移動,產生電流。雖然施體電子獲得能量會躍遷至傳導帶, 但並不會和本質半導體一樣留下一個電洞,施體原子在失去了電子後只會固定在半導體材料的晶格中。因此這種因為摻雜而獲得多餘電子提供傳導的半導體稱為n型半導體,n代表帶負電荷的電子。 - 維基百科  
  • 單晶薄膜的沈積在積體電路製程中特別重要,稱為是「磊晶」。相較於晶圓基板,磊晶成長的半導體薄膜的優點主要有:可以在沈積過程中直接摻雜施體或受體,因此可以精確控制薄膜中的「摻質分佈」,而且不包含氧與碳等雜質。 - Nanowiki  
  • 在π-共軛高分子材料中,光子的被吸收會導致激子的產生,這個類似粒子會擴散至材料中,如果擴散的長度足夠長的話,激子會受到內部場的影響,例如: 局部電場坐落在受體- 施體 的界面,之後電子與電洞會被分開至兩旁的電極。 - Midterm Report  
Gertrude Tsau
United States
Local time: 10:53
Native speaker of: Chinese
PRO pts in category: 4
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106 days   confidence: Answerer confidence 4/5Answerer confidence 4/5
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):
Sze Man Leung, MCIL, DipTrans (IoLET)
Australia
Local time: 02:53
Native speaker of: Native in ChineseChinese
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