1 what can we determine from a plot of one over

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Unformatted text preview: ­606 1 Spring 2013 Exam 4: ECE 606 Spring 2013 Answer the five multiple choice questions below by choosing the one, best answer. 1) What can we determine from a plot of one over junction capacitance squared vs. reverse bias voltage? a) The minority carrier lifetime. b) The minority carrier diffusion coefficient. c) The semiconductor bandgap. d) The doping density. e) The series resistance. 2) When is the diffusion capacitance important? a) For low DC forward bias and for frequencies that are well below 1 2!" n . () b) For low DC forward bias and for frequencies that are well above 1 ( 2!" ) . c) For high DC forward bias and for frequencies that are well below 1 ( 2!&quo...
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This note was uploaded on 01/15/2014 for the course ECE 606 taught by Professor Staff during the Fall '08 term at Purdue University-West Lafayette.

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