Semiconductor Device Theory-lecture-1

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    EE 5340Semiconductor Device Theory

    Lecture 1 - Fall 2009

    Professor Ronald L. [email protected]

    http://www.uta.edu/ronc

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    Web Pages

    * Review the following

    R. L. Carters web page www.uta.edu/ronc/

    EE 5340 web page and syllabus www.uta.edu/ronc/5340/syllabus.htm

    University and College Ethics Policies http://www.uta.edu/studentaffairs/conduct/ http://www.uta.edu/ee/COE%20Ethics%20Statement%20Fall%2007.pdf

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    First Assignment

    Send e-mail to [email protected] On the subject line, put 5340 e-mail

    In the body of message include email address: ______________________

    Your Name*: _______________________

    Last four digits of your Student ID: _____* Your name as it appears in the UTA

    Record - no more, no less

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    Teaching Assistant: Ardasheir [email protected] (Office: 206 ELB. Office hours:

    10 to 12 Tu/Th, and 8 to 12 Friday.)Attendance Policy: Attendance at every class sessionfor the entire 80-minute period is strongly advised.Lectures will be posted athttp://www.uta.edu/ronc/5340/lectures by 4 PM theday before class. Bring a copy to class. In order tovalidate your attendance, Assignment 1 given in thefirst lecture must be submitted. If not, you will bedropped from class for non-attendance.

    Text:RDevice Electronics for Integrated Circuits, 3rded., by Richard S. Muller, Theodore I. Kamins, andMansun Chan, John Wiley and Sons, New York, 2003.ISBN: 0-471-59398-2.

    mailto:[email protected]://www.uta.edu/ronc/5340/lectureshttp://www.uta.edu/ronc/5340/lecturesmailto:[email protected]
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    Reference Texts: (Books on reserve in the Science andEngineering Library are marked R.)R

    Devices for Integrated Circuits: Silicon and III-VCompound Semiconductors, by H. Craig Casey, Jr., JohnWiley & Sons, New York, 1999.RSemiconductor Physics and Devices, by Donald A.Neamen, Irwin, Chicago, 1997.RDevice Electronics for Integrated Circuits, 2nd ed., byMuller and Kamins, Wiley, New York, 1986.RFundamentals of Semiconductor Theory and DevicePhysics, by Shyh Wang, Prentice Hall, 1989.R

    Semiconductor Physical Electronics, by Sheng S. Li,Plenum Press, New York, 1993.RPhysics of Semiconductor Devices, by S. M. Sze,Wiley-Interscience, New York, 1981.

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    Spice References: (Books on reserve in the Scienceand Engineering Library are markedR.)R

    MicroSim PSpice for Windows, 2nd ed, by Goody,Prentice-Hall, Upper Saddle River, N.J., 1998.RComputer-Aided Circuit Analysis Using PSpice byWalter Banzhaf, Regents/Prentice Hall, EnglewoodCliffs, NJ, 1992RSPICE: A Guide to Circuit Simulation and AnalysisUsing PSpice, 3rd ed., by Paul W. Tuinenga, PrenticeHall, Englewood Cliffs, NJ, 1995.RSchematic Capture with MicroSim Pspice: for Windows

    3.1, 4th

    Ed., by Herniter, 2000, Prentice-HallPSpiceTM information to be determined

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    Use of e-mail: Updates of class information are sentby e-mail. For this reason e-mail addresses are

    collected through Assignment 1. Questions should besent to [email protected] Always include the coursenumber, EE5340, in the Subject line of e-mail messagesto me. Answers will be sent to the EE5340 list if theyare of general interest to the class. EE students shouldalso subscribe to EE_GRADS atSUSCRIBE_EE_GRADS to receive EE Departmentinformation.Problems: The problem assignments to be given in the

    syllabus have been selected for your study, but will notbe collected or graded. The study of the problemsassigned will be helpful in preparing for the tests andfinal.

    mailto:[email protected]://www.lsoft.com/scripts/wl.exe?SL1=EE-GRADS&H=LISTSERV.UTA.EDUhttp://www.lsoft.com/scripts/wl.exe?SL1=EE-GRADS&H=LISTSERV.UTA.EDUmailto:[email protected]
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    Tests: Sample tests are posted athttp://www.uta.edu/ronc/5340/tests/. Tests will be on thefollowing dates: 9/24, 10/29, and the Final Exam on 12/8.Grade Calculation: Grade = (Test1 + Test2 + Project +Final)/4. Note that there are ONLY four components in thegrade calculation.Grading Scale:

    A = 90 and aboveB = 75 to 89C = 60 to 74D = 50 to 59F = 49 and below

    Project Assignment: Seehttp://www.uta.edu/ronc/5340/project. Click to downloadProject AssignmentStudent Evaluation of Teaching: Students will completeevaluation forms at the end of the semester.

    http://www.uta.edu/ronc/5340/tests/http://www.uta.edu/ronc/5340/projecthttp://www.uta.edu/ronc/5340/project/project.pdfhttp://www.uta.edu/ronc/5340/project/project.pdfhttp://www.uta.edu/ronc/5340/projecthttp://www.uta.edu/ronc/5340/tests/
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    CL DATE DAY ASSIGNMENTS Important Dates1 25-Aug-09 Tu Ch. 1 - Semiconductor Electronics, P1:1,3,4,6,8,18

    2 27-Aug-09 Th Appendix 1A - Electric Fields

    3 01-Sep-09 Tu

    4 03-Sep-09 Th Ch. 2 - Silicon Technology, P2:15,18,19,20 Labor Day Holiday 9/7

    5 08-Sep-09 Tu Ch. 3 - Metal-Semiconductor Contacts, P3:2,3,4,5,7,16

    6 10-Sep-09 Th

    7 15-Sep-09 Tu Project Assigned

    8 17-Sep-09 Th Ch. 4 - pn Junctions, P4:1,2,5,6,9,14

    9 22-Sep-09 Tu

    10 24-Sep-09 Th Test 1

    11 29-Sep-09 Tu Ch. 4 - pn Junctions, continued

    12 01-Oct-09 Th

    13 06-Oct-09 Tu Ch. 5 Currents in pn Junctions - P5:1,2,3,6,9,11,19,21

    14 08-Oct-09 Th

    15 13-Oct-09 Tu

    Lecture, Assignment, Quiz and Test Schedule(Lectures at http://www.uta.edu/ronc/5340/lecturesby 4 PM the

    day before class. Bring a copy to class.)

    http://www.uta.edu/ronc/5340/lectureshttp://www.uta.edu/ronc/5340/lectureshttp://www.uta.edu/ronc/5340/lectures
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    16 15-Oct-09 Th Ch. 6 - Bipolar Transistors I, P6:1,5,8,9,12,13,16,17

    17 20-Oct-09 Tu

    18 22-Oct-09 Th

    19 27-Oct-09 Tu

    20 29-Oct-09 Th Test 2

    21 03-Nov-09 Tu Ch. 7 - Bipolar Transistors II, P7:1,2,7,9,11,23,29

    22 05-Nov-09 Th

    23 10-Nov-09 Tu Ch. 8 - Properties of the MOS System, P8:1,2,4,7,12,1524 12-Nov-09 Th Project Due

    25 17-Nov-09 Tu

    26 19-Nov-09 Th Ch. 9 - MOSFETs I, P9:1,3,5,7,14,21,

    27 24-Nov-09 Tu 11/26-29 - Thanksgiving Holiday

    28 01-Dec-09 Tu Ch. 10 - MOSFETs II, P10:1,2,4,8

    29 03-Dec-09 Th Last Class

    30 08-Dec-09 Tu Final 8-10:30 AM

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    Notes:1.This syllabus may be changed by the instructor as needed

    for good adademic practice. Use the "refresh" or "reload"function on your browser.2.Quizzes and tests are open book (must have a legallyobtained copy-no Xerox copies) OR one handwritten page ofnotes. Calculator allowed.3.There will be no make-up, or early exams given.Attendance is required for all tests.4.Americans with Disabilities Act: The University of Texasat Arlington is on record as being committed to both the

    spirit and letter of federal equal opportunity legislation;reference Public Law 92-112 - The Rehabilitation Act of1973 as amended. With the passage of federal legislationentitled Americans with

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    Disabilities Act (ADA), pursuant to section 504 of theRehabilitation Act, there is renewed focus on providing this

    population with the same opportunities enjoyed by allcitizens. As a faculty member, I am required by law toprovide "reasonable accommodations" to students withdisabilities, so as not to discriminate on the basis of thatdisability. Student responsibility primarily rests withinforming faculty of their need for accommodation and inproviding authorized documentation through designatedadministrative channels. Information regarding specificdiagnostic criteria and policies for obtaining academic

    accommodations can be found at www.uta.edu/disability.Also, you may visit the Office for Students withDisabilities in room 102 of University Hall or call them at(817) 272-3364.

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    5. Academic Integrity: It is the philosophy of TheUniversity of Texas at Arlington that academicdishonesty is a completely unacceptable mode of conduct

    and will not be tolerated in any form. All personsinvolved in academic dishonesty will be disciplined inaccordance with University regulations and procedures.Discipline may include suspension or expulsion from the

    University. "Scholastic dishonesty includes but is notlimited to cheating, plagiarism, collusion, the submissionfor credit of any work or materials that are attributablein whole or in part to another person, taking anexamination for another person, any act designed to giveunfair advantage to a student or the attempt to commitsuch acts." (Regents Rules and Regulations, Series50101, Section 2.2). Seehttp://www.uta.edu/studentaffairs/conduct/.

    http://www.uta.edu/studentaffairs/conduct/http://www.uta.edu/studentaffairs/conduct/
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    6. Submit a signed copy ofhttp://www.uta.edu/ee/COE%20Ethics%20Statement%20(the COE Ethics policy). Review the contents of this

    page and the website referenced in 5 above.7. If identical material is submitted for grade by different

    students, the grade earned will be divided among allidentical submissions.

    8. A paper submitted for regrading will be compared to acopy of the original paper. If the paper does not agreewith the original, points will be deducted.

    9. Student Support Services Available: The University of

    Texas at Arlington supports a variety of studentsuccess programs to help you connect with theUniversity and achieve academic success. These

    http://www.uta.edu/ee/COE%20Ethics%20Statement%20Fall%2007.pdfhttp://www.uta.edu/ee/COE%20Ethics%20Statement%20Fall%2007.pdf
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    programs include learning assistance, developmentaleducation, advising and mentoring, admission andtransition, and federally funded programs. Students

    requiring assistance academically, personally, or sociallyshould contact the Office of Student Success Programsat 817-272-6107 for more information and appropriatereferrals.

    10. Final Review Week: A period of five class days prior tothe first day of final examinations in the long sessionsshall be designated as Final Review Week. The purposeof this week is to allow students sufficient time toprepare for final examinations. During this week, thereshall be no scheduled activities such as required fieldtrips or performances; and no instructor shall assign anythemes, research problems or exercises of similar

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    scope that have a completion date during or followingthis week unless specified in the class syllabus. DuringFinal Review Week, an instructor shall not give any

    examinations constituting 10% or more of the finalgrade, except makeup tests and laboratoryexaminations. In addition, no instructor shall give anyportion of the final examination during Final Review

    Week. Classes are held as scheduled during this weekand lectures and presentations may be given.11. Librarian to Contact: See http://library.uta.edu/sel/ and

    http://libguides.uta.edu/content.php?pid=3545

    12. Electronic Communication Policy: A UTA listserv is beingestablished for EE 2303. All class communication will beconducted via this list. To sign up, go tohttps://listserv.uta.edu/archives/EE5340.html, click onthe link "Join or Leave EE5340", or send e-mail to

    http://libguides.uta.edu/content.php?pid=3545http://libguides.uta.edu/content.php?pid=3545
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    [email protected] with the command "subscribeEE5340 your_name" (without the quotes) in the body ofthe message. You may receive communication from this

    listserv at any email address you choose. If you havequestions, send email to [email protected] In addition, theUniversity of Texas at Arlington has adopted theUniversity MavMail address as the sole official means

    of communication with students. MavMail is used toremind students of important deadlines, advertiseevents and activities, and permit the University toconduct official transactions exclusively by electronicmeans. For example, important information concerningregistration, financial aid, payment of bills, andgraduation are now sent to students through theMavMail system. All students are assigned a MavMailaccount. Students are responsible for checking

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    MavMail regularly. Information about activating andusing MavMail is available athttp://www.uta.edu/oit/email/. There is no additional

    charge to students for using this account, and it remainsactive even after they graduate from UT Arlington.

    13. Grade Grievance Policy: Forms to report a gradegrievance are available in the EE Office.

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    Quantum Concepts

    Bohr Atom

    Light Quanta (particle-like waves)

    Wave-like properties of particles

    Wave-Particle Duality

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    Bohr model for

    Hydrogen atom Electron (-q) rev.

    around proton (+q)

    Coulomb force,F = q2/4or2,q = 1.6E-19 Coul,o=8.854E-14Fd/cm

    QuantizationL = mvr = nh/2,h =6.625E-34J-sec

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    Bohr model for

    the H atom (cont.) En= -(mq4)/[8o2h2n2] ~ -13.6 eV/n2

    rn

    = [n2o

    h2]/[mq2] ~ 0.05 nm = 1/2 Ao

    for n=1, ground state

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    Bohr model for

    the H atom (cont.)En= - (mq4)/[8o2h2n2]

    ~ -13.6 eV/n2 *

    rn= [n2oh2]/[mq2]~ 0.05 nm = 1/2 Ao *

    *for n=1, groundstate

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    Energy Quanta for

    Light Photoelectric Effect:

    Tmax is the energy of the electronemitted from a material surface whenlight of frequency f is incident.

    fo, frequency for zero KE, matl spec. h is Plancks (a universal) constant

    h = 6.625E-34 J-sec

    stopomax qVffhmvT2

    2

    1

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    Photon: A particle

    -like wave E = hf, the quantum of energy for

    light. (PE effect & black body rad.)

    f = c/ , c = 3E8m/sec, = wavelength From Poyntings theorem (em waves),

    momentum density = energy density/c

    Postulate a Photon momentump = h/ = hk, h = h/2 wavenumber, k = 2 /

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    Wave-particle duality

    Compton showed p = hkinitial - hkfinal, soan photon (wave) is particle-like

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    Wave-particle duality

    DeBroglie hypothesized a particlecould be wave-like, = h/p

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    Wave-particle duality

    Davisson and Germer demonstratedwave-like interference phenomena for

    electrons to complete the dualitymodel

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    Newtonian Mechanics

    Kinetic energy, KE = mv2/2 = p2/2mConservation of Energy Theorem

    Momentum, p = mvConservation of Momentum Thm

    Newtons second Law

    F = ma = m dv/dt = m d2x/dt2

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    Quantum Mechanics

    Schrodingers wave equation developedto maintain consistence with wave-

    particle duality and other quantumeffects

    Position, mass, etc. of a particle

    replaced by a wave function, (x,t) Prob. density = | (x,t) (x,t)|

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    Schrodinger Equation

    Separation of variables gives(x,t) = (x) (t)

    The time-independent part of theSchrodinger equation for a singleparticle with Total E = E and PE = V.

    The Kinetic Energy, KE = E - V2

    2

    28

    0x

    x

    mE V x x

    h2( )

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    Solutions for the

    Schrodinger Equation Solutions of the form of

    (x) = A exp(jKx) + B exp (-jKx)

    K = [82m(E-V)/h2]1/2 Subj. to boundary conds. and norm.

    (x) is finite, single-valued, conts.

    d (x)/dx is finite, s-v, and conts.1dxxx

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    References

    *Fundamentals of SemiconductorTheory and Device Physics, by Shyh

    Wang, Prentice Hall, 1989.**Semiconductor Physics & Devices,by Donald A. Neamen, 2nd ed., Irwin,

    Chicago.