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 23: 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.
January 30: Quiz 2: 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 6: Quiz 3 - Cancelled- 3.7 again [ND=2.63E16/cm3, Indium
neutral=2.1E14/cm3], 3.8 [0.347 eV], 3.10. Self quiz questions chapter 3 Q5, Q6, Q7
The problems listed below are recommended for T1 preparation
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], 3.15 [j= 8.82E-2 A/cm2
for 2.5V, j=1.6E3 A/cm2 for 2500V], 3.17 , 4.2 [Fn-Ei=0.18eV, Ei-Fp=0eV, change
cond.=0.0198(Ohmcm)-1], 4.7 [0.577eV], 4.2 [Fn-Ei=0.18eV, Ei-Fp=0eV, change
cond.=0.0198(Ohmcm)-1], 4.7 [0.577eV], 4.11, 4.13, 4.14, 4.15, 4.16.
March 20: Quiz 3: 5.9 [qVo=0.754eV], 5.10 [Vo=0.8498V, W=0.334 microm,
xno=0.333 mircom, Q=0.107nC, Eo=-5,1E4 V/cm], 5.19 [Vo=0.70V,W=0.96 microm,
ignore current question for this quiz]
For T2 on March 27: 5.12 [I=0.55micrA], 5.19 [Vo=0.70V,W=0.96 microm, I=1.1
microA],
April 10: Quiz 4: 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. Redraw to scale figures 6-12,
6-13, and 6-15 for a MOS system using a n-type semiconductor as body or bulk.
April 17: In preparation for T3 : Redraw to scale figures 6-12, 6-13, and 6-15 for a MOS
system using a n-type semiconductor as body or bulk and indicate surface and Fermi
potential and Vi, 6.7, 6.8 [ Wm=0.301micrm, Ci=3.45E-7 F/cm2, VT=0.834V].
April 24: Quiz 5: 6.9 [answers from solution manual are wrong], no CV, 6:10, 6.21
[Id=0.682mA, Id=3.45mA, note dox = 100 Angstrom]