Control Components
Introduction
Weve looked at fundamental building blocks
That comprise the datapath in embedded design
Now want to look at control aspects
Control component typically expressed as
Finite state machine
Collection of such machines
Such dev
EE 399 Introduction to semiconductors and devices
Problem Set #6
Winter 2016
Use the values if not given in the problems,
Si: = 1.5 1010 cm3 ; = 2.8 1019 cm3 ; = 1.04 1019 cm3 ; = 1.12 eV;
GaAs: = 1.8 106 cm3 .
Problem #1
Problem #2
Problem #3
Problem #4
EE 399 Introduction to semiconductors and devices
Problem Set #3
Winter 2016
Problem #1
Probability Calculation
An electron is described by a wave function given by
2
2
() = sin (
)
For 0 < < . The wave function is zero elsewhere. Calculate the probabilit
EE 399 Introduction to semiconductors and devices
Problem Set #8
Winter 2016
Problem #1
The pn junction Consider an abrupt Si pn + junction that has 1015 acceptors cm-3 on
the p-side and 1019 donors on the n-side. The minority carrier recombination times
EE 399 Introduction to semiconductors and devices
Problem Set #5
Winter 2016
Problem #1
Fermi energy and density of states the Fermi energy (in eV) of Na and Au are
3.15 eV and 5.54 eV, respectively at 300 K. Calculate the speed of electrons at EF for
eac
EE 399 Introduction to semiconductors and devices
Problem Set #1 solution
Winter 2016
Problem #1
Problem #2
Problem #3
Problem #4
Problem #5
1.22 Calculate the density of valence electrons (particles/cm3) in silicon.
EE 399 Introduction to semiconductors and devices
Problem Set #3 Solution
Winter 2016
Problem #1
Probability Calculation
An electron is described by a wave function given by
2
2
() = sin (
)
For 0 < < . The wave function is zero elsewhere. Calculate the p
EE 399 Introduction to semiconductors and devices
Problem Set #4 Solution
Winter 2016
Problem #1
Phase of an atomic orbital
a. What is the functional form of a 1s wavefunction, (r)? Sketch schematically the
atomic wavefunction 1s(r) as a function of dista
EE 399 Introduction to semiconductors and devices
Problem Set #2
Winter 2016
Problem #1
Photons and photon flux
a. Consider a 1 kW AM radio transmitter at 700 kHz. Calculate the number of photons
emitted from the antenna per second.
b.
The average intensi
BB 399 Introduction toSemiconductors and Devices
Instructor: TaiChang Chen
2nd Midterm
10:30 11:20am 05/18/2015
Notes:
1. Try to t your work onto the same sheet as the problem itself. If you need to include
additional sheets, place these immediately beh
EE 399 Introduction to semiconductors and devices
Problem Set #2 Solution
Winter 2016
Problem #1
3.1 Photons and photon flux
a. Consider a 1 kW AM radio transmitter at 700 kHz. Calculate the number of photons
emitted from the antenna per second.
b.
The av
The Verilog Hardware Description Language
Introduction
As we know circuits and systems we are developing today
Growing in capability and complexity every day
Yesterday a sketch on a piece of paper and a handful of parts
Sufficient to try out a design idea
Generating Digital Signals
Introduction
Are a number of different kinds of digital signals
That may be required in an embedded application
Applications may include
Control of various kinds of motors
Interface to some form of display
Control for a piece of
Datapath Components
Introduction
Have determined that can decompose system into
Datapath and control
Identified
Datapath as
Route(s) data takes through system
Components through which data passes
As it moves through system
Control elements
Mechanisms or m
Design a First View
Introduction
Consider that you are thinking about a summer holiday across Europe
Several questions immediately come to mind
Where should you go
What should you see
How can you get around
Seems that you have a problem
How do you begin t
Contemporary Design
We have been talking about design process
Lets now take next steps into examining in some detail
Increasing complexities of contemporary systems
Demand the use of increasingly powerful tools
Pencil and paper methods
No longer reasonabl
Power Consumption
Introduction
Today more and more embedded applications
Targeted towards
Small hand held or other types of portable devices
Common thread through all such applications
Need to have long battery life
Translates to low power consumption
Pow
Introduction
Networks - What are They
What is a network - a bit difficult to define
We use the word all the time and seem to understand its meaning
Can talk of networks of
People
Roads
Companies
Telephones
Here were going to talk about networks of compute
Programmable Logic Devices
Introduction
PLD - Programmable Logic Device
Hardware focus typically on
Microprocessor, microcontroller, and microcomputer
World of embedded systems is continually changing
World of electronic systems in general is changing
Tod
Testing
introduction
We are typically used to thinking of
System and tester
Using first model in accompanying figure
First we design
The system then
We design the tester
Then we use the tester to test the system
Consider reversing the roles to that reflec
Practical Considerations
In text book or ideal world
Signals change state or propagate though combinational or sequential networks
In zero time
At every turn real world signals encounter physics of practical devices
Thousands of dead physicists are there
BB 399 Introduction to Semiconductors and Devices
Instructor: TaiChang Chen
1St Midterm
_ 10:30 11:20am 04/27/2015
Name: '1 Am a gag +0051
Student Number: / a 3 U s 6
Notes:
1. Try to t your work onto the same sheet as the problem itself. If you need to i