Laboratory Manual for Semiconductor Devices

1 Semiconductor Devices : Semiconductor Devices : Theory and ApplicationTheory and ApplicationLaboratory ManualLaboratory ManualJames M. FioreJames M. Fiore Laboratory Manual for Semiconductor Devices : Theory and Application2 Semiconductor Devices : Theory and ApplicationLaboratory Manual byJames M. FioreVersion , 11 March 2021 Laboratory Manual for Semiconductor Devices : Theory and Application3 This Laboratory Manual for Semiconductor Devices : Theory and Application, by James M. Fiore iscopyrighted under the terms of a Creative Commons license: This work is freely redistributable for non-commercial use, share-alike with attributionPublished by James M. Fiore via dissidents ISBN13: 978-1796601947 For more information or feedback, contact:James Fiore, ProfessorElectrical Engineering TechnologyMohawk Valley Community College1101 Sherman DriveUtica, NY the latest revisions, related titles, and links to low cost print versions, go to: or my mirror sites and Channel: Electronics with Professor FioreCover art, Ride, by the author Laboratory Manual for Semiconductor Devices : Theory and Application4 IntroductionThis Laboratory Manual is the companion to my OER text Semiconductor Devices : Theory and Application.

2 It is intended for use in introductory Semiconductor Devices courses and is appropriate for two and four year electrical engineering technology curriculums. The Manual contains sufficient exercisesfor two 15 week courses using a two to three hour practicum period. It assumes familiarity with basic electrical circuit analysis techniques and theorems. The topics cover basic diodes through DC biasing and AC analysis of small signal bipolar and FET amplifiers along with class A and B large signal analysis. Forequipment, each lab station should include a dual adjustable DC power supply, a dual trace oscilloscope, afunction generator and a quality DMM. Some exercises also make use of a distortion analyzer and a low distortion generator (generally, THD below ), although these portions may be bypassed. For components, a selection of standard value watt carbon film resistors ranging from a few ohms to a few mega ohms is required along with an array of typical capacitor values (film types recommended below 1 F and aluminum electrolytics above).

3 Specialty passives include a CdS cell, thermistor and a 20 ohm 20 watt load resistor. A decade resistance box and a 10 k potentiometer may also be useful. Active Devices include small signal diodes such as the 1N914 or 1N4148, rectifying diodes such as the 1N4000 series, the NZX5V1B or 1N751 Zener, single LEDs of various colors, a super bright LED, 2N3904 or 2N2222 NPN transistor , 2N3906 PNP transistor , and MPF102 N channel JFET. A small VCT power transformer is used in the power supply project and associated exercises along with a three-terminal exercise begins with an Objective and a Theory Overview. The Equipment List follows with space provided for serial numbers and measured values of components. Schematics are presented next along with the step-by-step procedure. Many exercises include sections on troubleshooting and design.

4 Simulations are often presented as well, and any quality simulation package such as LT spice, TINA-TI, Multisim or PSpice can be used. All data tables are grouped together, typically with columns for the theoretical and experimental results, along with a column for the percent deviations between them. Finally, a group of appropriate questions are presented. Other Laboratory manuals in this OER series include DC and AC Electrical Circuit Analysis, Computer Programming with Python and Multisim , Operational Amplifiers & Linear Integrated Circuits, Embedded Controllers Using C and Arduino, and Science of Sound. OER texts for DC and AC Electrical Circuit Analysis, Embedded Controllers, and Operational Amplifiers & Linear Integrated Circuits are alsoavailable. Finally, this work supersedes the earlier Laboratory Manual for Linear Electronics.

5 A Note from the AuthorThis Manual is used at Mohawk Valley Community College in Utica, NY, for our ETAC of ABET accredited AAS program in Electrical Engineering Technology. I am indebted to my students and colleagues for their support and encouragement of this project. It was created out of a desire to offer a minimal cost lab Manual for our students that covered the requisite material and made optimal use of our Laboratory facilities. While it would have been possible to seek a traditional publisher for this work, as a long-time supporter and contributor to freeware and shareware computer software, I have decided instead to release this title using a Creative Commons non-commercial, share-alike license. I encourage others to make use of this Manual for their own work and to build upon it. If you do add to this effort, I would appreciate a notification.

6 Please note that the latest versions of all texts and manuals in both PDF and easily editable versions (odt) may be found at my MVCC site or on my mirror site, Manual for Semiconductor Devices : Theory and Application5 It doesn t matter how beautiful your theory is, it doesn t matter how smart you are. If it doesn t agree with experiment, it s wrong. - Richard Feynman Laboratory Manual for Semiconductor Devices : Theory and Application6 Table of to Electronics Emitting Zener Oscilloscope (four and two channel versions) 46, 52, Clippers and Bridge DC Power Supply Driver Divider Emitter CE A Power B Power Amp with Ohmic A: Creating Graphs Using a Spreadsheet182 Appendix B: Manufacturer s Datasheet C: Component Symbol Manual for Semiconductor Devices : Theory and Application71 Introduction to Electronics LabObjectiveThe Laboratory emphasizes the practical, hands-on component of this course.

7 It complements the theoretical material presented in lecture, and as such, is integral and indispensible to the mastery of the subject. There are several items of importance here including proper safety procedures, required tools, and Laboratory reports. This exercise will finish with a section on component Safety and ToolsIf proper procedures are followed, the electrical lab is a perfectly safe place in which to work. There are some basic rules: No food or drink is allowed in lab at any time. Liquids are of particular danger as they are ordinarily conductive. While the circuitry used in lab normally presents no shock hazard, some of the test equipment may have very high internal voltages that could be lethal (in excess of 10,000 volts) along with the 120 VAC power used to operate the equipment that can also be lethal if good safety practices are not followed.

8 Spilling a bottle of water or soda onto such equipment could leave the experimenter in the receiving end of a severe shock. Similarly, items such as books and jackets should not be left on top of the test equipment as it could cause overheating. Use caution in storing these items during lab periods to avoid trip or fall hazards in the lab bench is self contained. All test equipment is arrayed along the top shelf. Built into the bench is a power strip. All test equipment for this bench should be plugged into this strip. None of this equipment should be plugged into any other strip. This strip is controlled by a circuit breaker. In the event of an emergency, all test equipment may be powered off through this one switch. Further, the benches are controlled by dedicated circuit breakers in the main lab panel.

9 Located at the front of the lab is an A/B/C class fire extinguisher suitable for electrical fires. Also at the front of the lab is a safety kit. This contains bandages, cleaning swaps and the like for small cuts and the like. Familiarize yourself with the location ofthese items in the lab. For serious injury, the Campus Security Office should be lab bench should always be left in a secure mode. This means that the power to each piece of test equipment should be turned off, the bench itself should be turned off, all AC and DC power and signal sources should be turned down to zero, and all other equipment and components properly stowed with labstools pushed under the bench. Any cables or cords used in the lab should be stored properly after the exercise is completed. Laboratory Manual for Semiconductor Devices : Theory and Application8It is important to come prepared to lab.

10 This includes the class text, the lab exercise for that day, class notebook, calculator, and hand tools. The tools include an electronic breadboard, test leads, wirestrippers, and needle nose pliers or hemostats. A small pencil soldering iron may also be useful. A basic DMM (digital multimeter) rounds out the list. A typical breadboard or protoboard is shown below:This particular unit features two main wiring sections with a common strip section down the center. Boards can be larger or smaller than this and may or may not have the mounting plate as shown. The connections are spaced inch apart which is the standard spacing for many Semiconductor chips. These are clustered in groups of five common terminals to allow multiple connections. The exception is the common strip which may have dozens of connection points.