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Unformatted text preview: 3 Learning Outcomes: 1. Describe processes occurring during junction formation. 2. Qualitatively draw charge, electric field, potential, and energy band diagram 3. Derive expressions for builtin voltage. 4 pn Junction Assumptions: 1) Onedimensional device 2) A metallurgical junction at x=0 3) Step junction: uniformly doped n and p regions 4) Perfect ohmic contacts 5) Equilibrium conditions: no applied voltage, no light, uniform temperature, no applied electric or magnetic fields p n Metallurgical junction 5 6 7 8 9 10 11 12...
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This note was uploaded on 10/03/2010 for the course ESE 231 taught by Professor Kamoua,r during the Spring '08 term at SUNY Stony Brook.
 Spring '08
 Kamoua,R

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