F2010_ECE132_Quiz7_Wed

F2010_ECE132_Quiz7_Wed - ECE 132 Quiz 7 December 1, 2010...

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ECE 132 Quiz 7 Name __________________________ December 1, 2010 For a pn junction under forward bias, there are two mechanisms that give rise to current. Drift current occurs in the presence of an electric field and diffusion current occurs when there is a concentration gradient. 1) Given the diagram of total carrier current below, analyze each region/cross section and mark which mechanism(s), if any, contribute a meaningful amount of current for each carrier (electrons and holes).
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This note was uploaded on 12/06/2010 for the course ECE 132 taught by Professor Denbaars during the Fall '08 term at UCSB.

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F2010_ECE132_Quiz7_Wed - ECE 132 Quiz 7 December 1, 2010...

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