Semiconductor and Electronic Circuits
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Transcript of Semiconductor and Electronic Circuits
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Semiconductor and Electronic CircuitsYong Heui Cho @ Mokwon University
#1
Electronic Circuits
1. Semiconductor & Electronic Ckts
2. Introduction to Smart Sensors
3. Basic Circuit Theory
4. Diode Operational Principle
#Semiconductor
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Wave Theory of CivilizationFirst Wave (10,000 ~ 3,000 B.C.)Agricultural revolutionStone - bronze - ironThird WaveInformation revolutionSiliconSecond WaveIndustrial revolutionSteel and steam
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Computer EraICT serviceInternetComputerCPU (Central Processing Unit)Logic CircuitsAnalog Circuits (Electronic Circuits)TransistorsSemiconductorSilicon (sand)
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SemiconductorMisunderstandingHalf of conductor, half of insulator Correct definitionVoltage controlled conductorDepending on voltage, semiconductor is conductor or insulator
#Vacuum TubeA bulb which can compute and thinkInvented by Fleming (at 55) in 1904
#ENIACThe first general purpose electronic computerElectronic Numerical Integrator and CalculatorDeveloped by Eckert (student) and Mauchly (professor) for 1943-1946Supported by von NeumannWeight = 27 tons# of vacuum tubes = 17,468# of soldering = over 5 millions
#Debugging of ENIAC
#Weakness of BulbsLarge heatLow power efficiencyShort lifeFragility
#Sand is Solution!Semiconductor substrate is made of sand.Silicon is 2nd most abundant on Earth.Wafer is almost perfect insulator.
#Doping ProcessAdding impurities to silicon (Si) dramatically changes electrical behaviors of semiconductor.N-type: P, AsP-type: B, Ga
#Invention of TransistorTR (Transistor)Trans + ResistorInvented by John Bardeen (at 40), Walter Brattain (at 46), and William Shockley (at 38) in 1948 at Bell Labs
first TR
#First All-TR Car Radio
at 1955
#SolderingMass production (?)
#Integrated Circuit (IC)Invented by Jack Kilby (at 35) in 1958 at Texas Instruments
#Semiconductor Process
#Electronic Circuits
#Passive Devices
resistorinductorcapacitor
relay
transformer
#Active Devices
transistorFET
IC
diode
#Circuit Diagram
#PCB ArtworkPCB (Printed Circuit Board)
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