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 pn . , pn , : . . , , . . .
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- .
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. , .

- , (14% -20% ).
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. pn- (AlGaAs-GaAs), . 35% - 50%. .
.
, , .

. 25C 0,002 , .. 0,4% / . . .
, , - 0,6 (.1). . . . , ( ) . .
:
( 1970 . 1 * , $ 60, 1980 . $ 1, $ 0,20 $ 0,30). 30% , ( ) 50 .


( 20 )

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