EE145: Properties of Materials (Fall 2010)

Last updated: 12/3/2010



Midterm Solutions


Midterm scores


Histogram of midterm scores


·       Dec. 2, 2010: Here is the review for the final. Good luck, folks!

·       Nov. 28, 2010: Here is the review for Quiz 3.

·       Nov. 16, 2010: Here is the statistics so far. See you good (or bad) you have been doing. Come to see me if you think you are qualified for various rescue plans. Note: the plots are based on the assumption that we have a normal distribution.

·       Nov. 3, 2010: Here is the review for Quiz 2.

·       Oct. 22, 2010: Quiz #1 statistics, Average 2.44, STD 1.06, the highest score 3.9 out of 4.0. Here is why I am a nice guy. If you are one of those who received a score more than one sigma below the average (i.e., < 1.38), I have a rescue plan, so contact me if you are interested in.

·       Oct. 20, 2010: You may use a 8.5x11 piece of paper (front and back) for the midterm. Write down whatever you think is useful for the midterm. Bring a calculator if you want to.

·       Oct. 16, 2010: The midterm review slides are posted. We will review the slides on 10/19.

·       Oct. 15, 2010: I reduced the number of HWs. Check them out.

·       Oct. 11, 2010: Quiz #1 will be on Oct. 14. It will be a closed book quiz for 15 minutes.


General Information


Nobuhiko "Nobby" P. Kobayashi


247 Baskin Engineering Building


(831) 459-3571


nobby at


Tuesdays and Thursdays from 6:00 pm to 7:45 pm, Engineering II 194

Office Hours

From 4:00 pm to 5:00 pm on Tuesdays and Thursdays, or by an appointment


S.O. Kasap, Principles of Electronic Materials and Devices, McGraw Hill, 2005, 3rd Edition

Too expensive? Check this out

Grading Policy

Quizzes 20%, Homework 10%, Midterm 30%, Final 40%


Teaching Assistant

Jason McDowell


BE 162




mcdowell at

Discussion Sessions

Mondays and Friday 2:00 pm - 3:00 pm in BE 162

Lab Sessions

Tuesday 4:00 pm - 6:00 pm, Wednesday 7:00 pm - 9:00 pm, Thursday 4:00 pm - 6:00 pm in BE 162

Office Hours:

Mondays and Friday 2:00 pm - 3:00 pm in BE 162


Lecture Schedule




Reading Assignment

Homework due


1 with note

Sep. 23, 2010

Introduction/ Overview, Atomic structure

1.1, 1.2



2 with note

Sep. 28, 2010

Atomic Structure, Bonds, Crystals

1.3, 1.8



3 with note

Sep. 30, 2010

Kinetic gas theory, Bravais lattices

1.4, 1.13



4 with note

Oct. 05 2010

Drude model, electrical and thermal conduction in solids

2.1, 2.2, 2.3, 2.6

HW1: ch.1 (2, 4, 7, 24)

HW1 solutions


5 with note

Oct. 07, 2010

Hall effect, quantum physics, Schrodinger equation

2.5, 3.1.1, 3.1.2, 3.2, 3.3


6 with note

Oct. 12, 2010

Infinite well, Heisenberg uncertainty, tunneling, hydrogen atom

3.4, 3.5, 3.7.1, 3.7.2, 3.8

HW2: ch.1 (26, 28), ch.2 (2, 12) 

HW2 solutions


7 with note

Oct. 14, 2010

Hydrogen atom and molecule, Band theory, Semiconductors

4.1, 4.2, 4.3

Quiz 1

Quiz 1 solutions


8 with note

Oct. 19, 2010

Effective mass, Density of States

4.4, 4.5

HW3: ch.2 (19), ch.3 (2)

HW3 solutions

Midterm review slides

Midterm review slides with notes


Oct. 21, 2010




9 with note

Oct. 26, 2010

Electron statistics, quantum theory of metals

4.6, 4.7

HW4: ch.3 (12, 27)

HW4 solutions


10 with note

Oct. 28, 2010

Intrinsic Semiconductors



11 with note

Nov. 02, 2010

Extrinsic Semiconductors

5.2, 5.3

HW5: ch.4 (2, 10)

HW5 solutions


12 with note

Nov. 04, 2010

Recombination, Drift, Diffusion

5.4, 5.5

Quiz 2

Quiz 2 solutions


13 with note

Nov. 9, 2010

Continuity Equation, optical absorption, photoconductors

5.6, 5.7

HW6: ch. 3 (12), ch.5 (7)

HW6 solutions 


14 with note

Nov. 16, 2010

Dielectric Materials, Permittivity, Polarization

7.1, 7.2



15 with note

Nov. 18, 2010

Polarization, Capacitor, Piezoelectricity

7.3, 7.4.1, 7.7,7.8

HW7: ch.5 (12, 17)

HW7 solutions 


16 with note

Nov. 23, 2010

Magnetic Properties and Materials

8.1, 8.2,8.3, 8.4

HW8: ch.5 (20), ch.7(4) 

HW8 solutions 


17 with note

Nov. 30, 2010

Ferromagnetism, Saturation, Domains, Hysteresis, Soft and Hard Magnetic Materials,

8.5, 8.6

Quiz 3

Quiz 3 solutions



Dec. 02, 2010

Review for the final

9.1, 9.8, 9.9, 9.10, 9.11

HW9: ch.7 (24), ch.8 (2)

HW9 solutions  






Important Information

Discussion sessions

The goal for the discussion sessions is to allow you to review lecture topics in more detail and discuss strategies to solve homework problems, both under the guidance of the TA.

Laboratory sessions

  • General Information
  • Laboratory Report Format
  • Laboratory Groups and times (TBA)
  • Laboratory session reports are due at the beginning of the following laboratory session. For each day a report is late 5% will be subtracted from the grade.
  • You have to pass the class in order to pass the laboratory sessions.
  • You will only be able to do the experiments while the TA is present, so showing up for the scheduled laboratory session times is mandatory. BE161 has computers that you can use for writing your reports if you wish.
  • Since you don't have 24/7 access to the lab, attendance for your session is mandatory to pass the lab.

Remember: You need to take the applet quiz by the time the report for the accompanying experiment is due.

The applets count 50% towards the grade for that laboratory session.

The following is a tentative laboratory schedule. The schedule below will be updated when the quarter begins.  

Week starting on Monday

Start Lab Number

Due Lab Number


Sep. 27, 2010



Linear regression

Oct. 4, 2010



Crystal structure

Oct. 11, 2010



Metal Resistivity (experiment)

Oct. 18, 2010



No laboratory sessions

Oct. 25, 2010



Hall Effect             Data 

Nov. 1, 2010



Semiconductor Conductivity  

Nov. 15, 2010



Solar Cells

Nov. 29, 2010



Optical Absorption/Photoluminescence Data

Dec. 2, 2010




Course Objectives
The fundamental electrical, optical, and magnetic properties of materials, with emphasis on semiconductors: chemical bonds, crystal structures, energy bands. Electrical and thermal conduction. Optical and magnetic properties. Students must concurrently enroll in course145L.

Course Prerequisites
EE145/L is a required course for EE undergraduates. Other Engineering or Science majors with proper prerequisites are welcome to enroll. Prerequisites (or equivalent at community college) are: Physics/5abc or 6abc, Math/differential equations.

Course Expectations
Learning occurs by the active involvement of the student. Consequently there will be many different opportunities for active learning, such as cooperative problem-solving in lab. The student is expected to come to class prepared to think and learn. The lecture period will be used to establish fundamental concepts. The lab periods will be used to practice the engineering skills of problem-solving and data acquisition and analysis.

During both lab and lecture time, you will be asked to participate in solving problems. Always bring your calculator to both lab and lecture. It also is helpful to bring your textbook along.

To get the most out of this class, you need to read the assigned sections in the textbook before coming to class, and most importantly to read the assigned Lab Notes before coming to lab sections. There will be quizzes in the lab sessions. It is advisable to review the Learning Objectives frequently to keep track of your own progress. Don't feel that you have to be failing the course to come see your instructor or TA; come to ask questions.

Working Together
You are encouraged to work in groups and discuss the homework assignments. However, each has to write his/her own solution and fully understand them.

Homework Assignments
Homework will be assigned and collected during class sessions, and will generally follow a weekly sequence. Solutions will be handed out (or posted at our web site) on the date of collection. Thus, late homework will not be accepted or graded. Homework is graded in terms of it being complete, well organized, readable and showing evidence of thoughtful attention to the problem itself. Sloppy submissions will not be considered for grading.

Grading Method
The course will not be graded on a curve. It is possible for everyone to earn an "A" or for everyone to earn an "F". Your final course grade does not depend in any way upon anyone else's performance. Thus it is to your benefit to find a group of people you can study with and to help each other learn. Passing the final is mandatory in order to pass the class. You should be aware of academic Integrity and plagiarism.