EEE2014 : Semiconductor Devices and Analogue Electronics
- Offered for Year: 2018/19
- Module Leader(s): Dr Patrick Degenaar
- Lecturer: Dr Sarah Olsen
- Owning School: Engineering
- Teaching Location: Newcastle City Campus
|Semester 1 Credit Value:||20|
To describe to the student, the operation of commercially important semiconductor devices (diodes, BJT, MOSFET) and how these are described by the semiconductor physics.
To enable the student to understand how transistors form key analog circuit building blocks – from single transistor amplifiers to OpAmps. To explain the continued and increasing importance of analog circuits and how the course content relates to the student’s day to day life.
Outline Of Syllabus
The importance of semiconductor devices in electronic systems and how ongoing developments are changing the field of electronics. Similarly the increasing importance of analog circuits as we move towards “more than Moore” and systems on a chip.
Bond & Band models; Ohm’s law; Einstein Relation; Drift and diffusion current; Current magnitudes; charge transport in solids; Wave-particle duality; DeBroglie wavelength; Heisenberg uncertainty principle; The Quantum mechanics concept;; Tunnelling; E-K bands in solids
Ideal diode I-V characteristic; Dynamic equilibrium; Built-in voltage; Current flow in p-n junctions; Shockley’s equation; Ideality factor; Generation – Recombination; Small signal equivalent circuit; Characterization of semiconductor devices; Tunnel diode;
Simple description of operation, Definitions of gain; Derivation of expressions for base, collector and emitter current; D.C. characteristic, Ebers-Moll equations; Small signal equivalent circuit; Hybrid- model;
Depletion, accumulation and inversion; Importance of Fermi Energy position; Mode of operation; Pinch-off; Threshold voltage; Enhancement and depletion mode; Analysis of operation; I-V relation; Short channel effects; Transistor delay time; Small signal equivalent circuit.
Single Transistor Amplifiers
Single transistor amplifiers utilizing both BJT or MOSFET transistors. Key operational relationships of BJT and MOSFET transistors from the perspective of creating analog circuits. BJT: common-base, common-collector, common-emitter, MOSFET: common-gate, common-source, common-drain.
Transistors circuit building blocks
The key building blocks for transistor analog circuits including current mirrors, diode connected MOSFETs, Cascode circuits, active resistors, potential dividers, current mirrors. Operational Transconductance Amplifiers and the construction of Op-amps from individual transistors.
Power amplifiers and op-amps
Class A, B, AB and C, D power amplifiers. Operational amplifier including summation, differencing, comparator, and integration circuits. Analysis of the gain and frequency response with both direct connection and feedback. Analysis of distortion, noise and common mode rejection.
D-A and A-D conversion techniques
Weighted resistors; ladder network; ramp conversion; successive approximation; synchronisation methods.SAR, Dual weighted, Sigma-Delta, and Flash analog to digital conversion techniques. Voltage summing amplifier as a DAC.
Simulations of common emitter amplifier design utilising SaberRD software tools to study the effect of capacitance on the frequency response of an amplifier
Experimental amplifier testing
To understand the utilisation of Op-Amps for voltage amplification. To explore frequency response Gain -Bandwidth Product, Slew Rate limitations offset voltage and bias current of the operational amplifier. To understand use of operational amplifiers in simple summing and difference circuits.
|Scheduled Learning And Teaching Activities||Lecture||6||2:00||12:00||Tutorials|
|Scheduled Learning And Teaching Activities||Lecture||24||2:00||48:00||N/A|
|Guided Independent Study||Assessment preparation and completion||8||2:30||20:00||Case study assignment|
|Guided Independent Study||Assessment preparation and completion||2||4:30||9:00||Lab report|
|Guided Independent Study||Assessment preparation and completion||1||28:00||28:00||Revision for final exam|
|Guided Independent Study||Assessment preparation and completion||1||2:00||2:00||Final exam|
|Scheduled Learning And Teaching Activities||Practical||2||3:00||6:00||Electronics laboratory|
|Guided Independent Study||Independent study||30||2:30||75:00||General reading; reviewing lecture notes; solving practice problems|
Teaching Rationale And Relationship
Lectures provide core material and guidance for further reading, problem solving practice is provided through tutorials. Work is further re-enforced through laboratory sessions.
The format of resits will be determined by the Board of Examiners
|Module Code||Module Title||Semester||Comment|
|Practical/lab report||1||M||10||2 assignments worth 7.5% each (1000 words per exercise)|
|Case study||1||M||10||Case study and report (6 page maximum)|
Assessment Rationale And Relationship
The examination provides the opportunity for the student to demonstrate their understanding of the lecture course material. The report enables students to research a topic not covered in the lectures and so put their understanding in to practice. Laboratory sessions offer the opportunity for reinforcement of key concepts through the use of hands on experiments, designed to complement the material presented as part of the formal lectures.
Semester 1 Study Abroad students will be able to sit the final assessment earlier.