ECE 606 Second Mid term 04/03/12
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PUID:
This question paper has 19 pages. There are six questions. The break up of
points for each question is below. Please write clearly and show all work to
secure full credit.
Q Number
Total
1
22
2
24
3
30
4
24
Tot
ECE-606
Practice Problems for Midterm #2 on 11/20/12
1. Consider a silicon step junction in which NA = 1016 cm-3 and ND = 5x1016 cm-3. We
derived the ideal diode equation under the assumption of low level injection in the
neutral regions on both sides of
ECE 606 Homework 2: Week 2 Solutions
Mark Lundstrom and John Wilcox
Purdue University
Revised: 1/22/13
1) Consider a free particle normalized so that the probability of finding it between x = 0
and
Exam
ECE 608
November 1, 2012, 12:00pm-1:15pm
Name: Solutions Sketch
Read all of the following information before starting the exam:
NOTE: Unanswered questions are worth 25% credit, rounded down. Writing any
answer loses this free credit, which must be e
Sample Final Exam
ECE 608
Name:
Read all of the following information before starting the exam:
1. NOTE: Unanswered questions are worth 25% credit, rounded down. Writing any
answer loses this free credit, which must be earned back by the quality of the
an
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ECE 606 Exam 5: Spring 2013
April 18, 2013
Mark Lundstrom
Purdue University
(revised 4/22/13)
This is a closed book exam. You may use a calculator and the formula sheet at the end of
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ECE 606 Exam 4: Spring 2013
March 28, 2013
Mark Lundstrom
Purdue University
This is a closed book exam. You may use a calculator and the formula sheet at the end of
this exam.
The
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ECE 606 Exam 6: Spring 2013
May 2, 2013
Mark Lundstrom
Purdue University
This is a closed book exam. You may use a calculator and the formula sheet at the end of this
exam.
There
Mark Lundstrom
2/24/2013
SOLUTIONS: ECE 606 Homework Week 7
Mark Lundstrom
Purdue University
(revised 3/27/13)
1)
Consider an n-
type semiconductor for which the only states in the bandgap are donor
levels
Week 8 Quiz Answers
ECE 606: Solid State Devices
Mark Lundstrom
Purdue University, Spring 2013
Quiz 1:
Answer the four multiple choice questions below by choosing the one, best answer.
Then ask a question about the
ECE-
606
Purdue University
SOLUTIONS: ECE 606 Homework Week 10
Mark Lundstrom
Purdue University
(Revised 3/29/13)
1) In a forward-
biased NP junction under low-
injection conditions, the QFLs are
approximately
Muhammad A. Alam
ECE 606: Solid State Devices
Homework 1 Solutions
1. Define the basis and the primitive cell for the 1D structure shown below.
Ans. The basis consists of
The chain will now reduce to a 1D Bravais lattice.
2. Calculate the tetrahedral bond
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SOLUTIONS ECE 606 Exam 4: Spring 2013
March 28, 2013
Mark Lundstrom
Purdue University
This is a closed book exam. You may use a calculator and the formula sheet at the end of
this exa
NAME:_
PUID: :_
SOLITIONS ECE 606 Exam 3: Spring 2013
March 7, 2013
Mark Lundstrom
Purdue University
This is a closed book exam. You may use a calculator and the formula sheet at the end of
this
ECE608 Homework #4 Solution
(1) CLR 5.1-3
Perform two calls to BIASED-RANDOM obtaining two bits. The following outcomes
are possible with the shown probability:
1) 1 and 0 with probability = p(1 p)
2) 0 and 1 with probability = p(1 p)
3) 1 and 1 with prob
ECE608, Homework #3 Solution
(1) CLR 4.3-9
T (n) = 3T ( n) + lg n.
Change variables to m = lg n n = 2m .
T (2m ) = 3T (2m/2 ) + m.
Change functions to S (m) = T (2m ).
S (m) = 3S ( m ) + m.
2
This is solvable by case 1 on the Master Theorem, since a = 3,
ECE608 Homework #6 Solution
(1) CLR 8.1-3
If the sort runs in linear time for m input permutations, then the height h of those
paths of the decision tree consisting of the m corresponding leaves and their ancestors
must be linear. Hence, we can use the sa
ECE608 Homework #5 Solution
(1) CLR 6.1-6
No, 23, 17, 14, 6, 13, 10, 1, 5, 7, 12 is not a heap because the heap property does not
hold between the 4th element and its second child, the 9th element (i.e., 6 < 7).
(2) CLR 6.1-7
Let i represent the index of
ECE608, Homework #9 Solution
(1) CLR 16.1-3
Let S be the set of n activities. The obvious solution of using Greedy-ActivitySelector to nd a maximum-size set S 1 of compatible activities from S for the rst
lecture hall, then using it again to nd a maximum-
ECE608, Homework #11 Solution
(1) CLR 23.1-1
Let A be the empty set and S be any set containing u but not v . Hence, the cut
(S, V S ) respects A and (u, v ) is the light edge crossing that cut since it has the
minimum weight of all edges in G. By Theorem
ECE608 Homework #7 Solution
(1) CLR 11.1-1
To nd the maximum element of the set S , it requires searching the entire table T
in the worst case. Note that NIL is returned if there are no elements in the table T ;
otherwise, the index to the largest element
NCN
www.nanohub.org
ECE606:SolidStateDevices
ECE606:
Solid State Devices
Lecture27:IntroductiontoBipolarTransistors
MuhammadAshrafulAlam
alam@purdue.edu
AlamECE606S09
1
Background
E
B
E
C
C
Base!
PointcontactGermanium transistor(your HW problem!)
Ralph Br
Week 2 Quiz 2: Elements of Quantum Mechanics
ECE 606: Solid State Devices
Mark Lundstrom
Purdue University, Spring 2013
Answer the four multiple choice questions below by choosing the one, best answer.
Then ask