Lecture 23 - Exam Review

Lecture 23 - Exam Review - Exam 2 March 30th (Friday) y...

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1 Exam 2 • March 30 th (Friday) • Review in class on today • Covers material through Monday (03/26/07) • Not cumulative • Old exam posted on website • Two note sheets (single sided, 8.5” x 11” paper) EE360 – Lecture 23 • Bring a calculator Review • pn-junction electrostatics: – Built-in potential – Depletion region and depletion width – Electric field in the depletion region – Charge density in the depletion region – Effect of applied bias EE360 – Lecture 23
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2 Review • pn-junction IV – Qualitative operation Qualitative operation – Solving the MCDEs for carrier concentrations – Finding diffusion currents – Quantitative IV expression – Saturation current (dependence on doping, EE360 – Lecture 23 intrinsic concentration, mobility, lifetime) Review: pn junction diodes • Non-idealities – What is breakdown and why does it happen? How does breakdown voltage vary with – How does breakdown voltage vary with doping level? – What happens when we have recombination
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Lecture 23 - Exam Review - Exam 2 March 30th (Friday) y...

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