MIT6_012s09_exam03_final_2007

MIT6_012s09_exam03_final_2007 - MIT OpenCourseWare...

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MIT OpenCourseWare http://ocw.mit.edu 6.012 Microelectronic Devices and Circuits Spring 2009 For information about citing these materials or our Terms of Use, visit: http://ocw.mit.edu/terms .
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6.012 Microelectronic Devices and Circuits Spring 2007 May 21, 2007 Final Exam (200 points) -OPEN BOOK- Problem #points NAME___________________________________ 1___________ RECITATION TIME___________________________ 2___________ 3___________ 4___________ 5___________ Total______________ General guidelines (please read carefully before starting): Make sure to write your name on the space provided above. This exam is open book. You can use any material you wish, except for computers. All answers should be given in the space provided. Please do not turn in any extra material. You have 180 minutes to complete the quiz. Make reasonable approximations and state them , i.e. low-level injection, extrinsic semiconductor, quasi-neutrality, etc. Partial credit will be given for setting up problems without calculations. NO credit will be given for answers without reasons. Use the symbols utilized in class for the various physical parameters, i.e. N a , τ , ε , etc. Every numerical answer must have the proper units next to it. Points will be subtracted for answers without units or with wrong units. Use the following fundamental constants and physical parameters for silicon at room temperature. n i = 1.0 x 10 10 cm -3 kT/q = 0.025V q = 1.6 x 10 -19 C ε s = 1.0 x 10 -12 F/cm ε ox = 3.45 x 10 -13 F/cm 1
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1. (35 points) Figure 1(a) is a common emitter amplifier circuit with a Bipolar Junction Transistor (BJT). V
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This note was uploaded on 09/24/2010 for the course EE 6.012 taught by Professor Charlessodini during the Spring '08 term at MIT.

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MIT6_012s09_exam03_final_2007 - MIT OpenCourseWare...

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