Home work assignments in preparation for the weekly Wednesday 10 minute quizzes.
Note that you can only work the quiz problem successfully if you have studied these
assignments. Quizzes will be closed book, no notes. Physical constants will be given.
Bring your calculator!
The following material will be quizzed on Wednesday at the beginning of class.
January 29: Quiz 1: 2.2, 2.4. Also, calculate the energy that is released if an electron
drops from the n=2 to the n=1 orbit in the H atom [10.2 eV] And calculate the
wavelength of the light emitted [0.12 micrometer], 2.6 [1.23 Angstrom, 0.112 A], show
the electronic shell structure of P, B, Ga, and As as in figure 2-8a, 3.2 [Note typo, f(C)
should be f(E)], 3.3[n=10E15, p=8.71E4, ni=9.35E9], 3.7[n=2.63E16, 2.1E14], 3.9[0.013eV], Note all answers concerning carrier concentrations are in units of 1/cm3.
February 5: Quiz 2: 3.12 [c: min=3.9E-6 /cm,i=4.4E-6 /cm ], 3.13[ a:0.16A for
1m, b: high field 10 ps, low field 0.74 ns] , 3.14 [a: =0.25 .cm, b: 4.4E13/cm3], and
review 3.7, 3.9 from the Q1 above assignment for full understanding.
February 12: Quiz 3: 3.15 [j= 1200 A/cm2 for 2.5V, j=1.6E3 A/cm2 for 2500V] , 4.2 [FnEi=0.18eV, Ei-Fp=0eV, change cond.=0.0198(Ohmcm)-1], 4.7 [0.577eV], 4.11, 4.13,
4.14, 4.15.
February 26 Quiz 4: 5.9 [qVo=0.754eV], 5.10 [Vo=0.8498V, W=0.334 microm,
xno=0.333 microm, Q=0.107nC, Eo=-5,1E4 V/cm], 5.19 [Vo=0.70V,W=0.96 microm,
ignore current question for this quiz]
March 12 Quiz 5: 5.12 [I=0.55microA], 5.19 [Vo=0.70V,W=0.96 microm, I=1.1
microA],
March 19 Quiz 6: 5.24[5pF], 5.26, Calculate the DC and AC resistance of the p-n diode
specified in 5.19 for V=-1, 0.1, 0.5 and 0.7 V at T=300K.
April 2 Quiz 7: Redraw to scale figures 6-12, 6-13, and 6-15 for a MOS system using a ntype semiconductor as body. Label important device parameters.
April 9 Quiz 8: , 6.7, 6.8 [ Wm=0.301micrm, Ci=3.45E-7 F/cm2, VT=0.834V], 6.9
[answers from solution manual are wrong], no CV.
For Final preparation- 7.18 [Wb=0.985micrm, Wb=1.09 microm], 7.19[B=0.995,0.994],
7.20 first part [alpha=0.9947,0.9936-beta=187.7,155.3-IE=8.254pA, 38microAIB=0.044pA, 0.2 microA-IC=8.21pA, 37.8 microA]