| 单词 | surface passivation | 
| 释义 | surface passivation [`sǝr·fǝs ´pas·ǝ`vā·shǝn]  ELECTRONICS A method of coating the surface of a p-type wafer for a diffused junction transistor with an oxide compound, such as silicon oxide, to prevent penetration of the impurity in undesired regions.  | 
	
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