7.2.1 Thickness control and uniformity
Often, final device characteristics, such as the value of a capacitor, the threshold voltage of a transistor, the resistance per square in a thin-film resistor and the resonant frequency of an acoustic wave filter, depend strongly on the thickness of a deposited layer. Therefore it must be ensured that the layer thickness is the same at all points on the wafer, and on every wafer that comes off the production line. Specifications of ±1% uniformity and reproducibility are not uncommon, and so
Ralph Leighton entered teaching from a background in social work and involvement in community politics. He has taught for twenty five years in a range of educational settings and currently leads the PGCE(s) Citizenship team at Canterbury Christ Church University. Ralph has been involved in the production of materials used nationally to train PGCE Citizenship students, particularly relating to assessment. His published research concerns the nature of school provision of Citizenship education and
Chasing Rivers, Part 1: The Colorado
National Geographic Freshwater Hero Pete McBride paddled and hiked the length of the Colorado River Delta, photographing and filming an unprecedented conservation success—the mighty river's triumphant, albeit temporary, return to the sea. (22:49)
In this unit you will have the opportunity to look at some of the constituent parts of the legal system in the UK. You will also consider how laws are made and who is responsible for enforcing them. Finally, you will have an opportunity to experiment with different ways of taking notes.
This unit is an adapted extract from Y166 Starting with Law, a course which is no longer taught by The Open University, but which was part of our Openings Programme which has been replaced by our
a link between the personal and the social;
some active engagement by those who take up identities;
being the same as some people and different from others, as indicated by symbols and representations;
a tension between how much control I have in constructing my identities and how much control or constraint is exercised over me.
Grammar Lesson 14: Absence of Direct Object Pronouns, Mobile Homes
- asset title: Grammar Lesson 14: Absence of Direct Object Pronouns, Mobile Homes
- filename: tafalado_gra_14.mp3
- track number: 40/46
- time: 10:24
- size: 7.32 MB
- bitrate: 96 kbps
OK, so you are driving down the freeway and you see a semi going 70 mph and there is a mobile home being pulled along. Well, yes, I do see why
The fascinating phenomenon of superconductivity and its potential applications have attracted the attention of scientists, engineers and businessmen. Intense research has taken place to discover new superconductors, to understand the physics that underlies the properties of superconductors, and to develop new applications for these materials. In this unit you will read about the history of superconductors, taking a brief look at their properties. You will also learn about modelling the propertie
Light : particle or wave?
This is a detailed explanation of the dual nature of light, complete with clear, labeled line drawings and Java interactive tutorials.
Conversations with Berkeley Faculty: Nelson W. Polsby (9/4/02)
Conversations with History Presents Faculty Research at the University of California, Berkeley
A Conversation with Nelson W. Polsby
Heller Professor of Political Science
"Institutional Change in the U.S. Congress"
This interview took place on September 4, 2002. A complete transcript is available.
Nelson Polsby is the Heller Professor of Political Science at the University of California at Berkeley. He was the Director of the Institute of Governmental Studies at U.C. from 1988 to 1999, and edi
Grammar Lesson 3: Plurals with 'l', Gas Stations
- asset title: Grammar Lesson 3: Plurals with 'l', Gas Stations
- filename: tafalado_gra_03.mp3
- track number: 29/46
- time: 13:15
- size: 9.31 MB
- bitrate: 96 kbps
The plural of Brazil, if there were two of them, would be 'Brasis.' Now that would be a strange word! Spanish speakers aren't sure how to make those words that
Garett Jones on Macro and Twitter
Garett Jones of George Mason University talks with EconTalk host Russ Roberts about the art of communicating economics via puzzles and short provocative insights. They discuss Jones's Twitter strategy of posting quotes and short puzzles to provoke thinking. Jones, drawing on his experience as a Senate staffer, discusses the interaction between politics and economics in the area of tax cuts and earmarks. For example, are earmarks good or bad? Jones gives an unconventional analysis. He also discus
Belongia on the Fed
Michael Belongia of the University of Mississippi and former economist at the St. Louis Federal Reserve talks with EconTalk host Russ Roberts about the inner workings, politics, and economics of the Federal Reserve. Belongia talks about the role that power and politics play in Federal Reserve decision-making and how various Fed chairs used their power to suppress dissent within the Fed that was critical of Fed policy. He argues that the Fed faces an unresolvable dilemma when asked to achieve the
Risky Business: Analysis from an Engineering Perspective - Elisabeth Paté-Cornell (Stanford Univers
Don't set sail without thinking first: this sage advice sums up risk analysis for Elisabeth Paté-Cornell, department chair of Management Science and Engineering at Stanford University. She explains that risk assessment involves the study of scenarios, probabilities, and consequences. A risk analyst uses logic and statistics to makes sense of uncertainties and provides possible solutions to derail disaster. While some events force quick thinking, most can be avoided with a little forethought. Af
Introduction to Facebook
This is my podcast of the final version which is about Facebook. It includes both my presentation and some music segments. It is of 4 minutes 26 seconds length, and I think it's not too long or too short. In the podcast I presented Facebook as a social network website, including its general information, typical audience, how does it work and its use in education. I think I foIlowed most of the instructions in "InstructionsForPreparingPodcast", while I laid my own emphases on "how does facebook w
Weekend Warriors No More
BIll MOYERS JOURNAl gives viewers an intimate look at how deployments of National Guard troops to Iraq affect the state Governors' ability to swiftly respond to domestic disaster at home and impact the families left behind. Traveling to New Jersey, the Journal follows families preparing for the deployment of nearly half of New Jersey's National Guard to Iraq. And, contributor Kathleen Hall Jamieson returns with a recap of the key moments and messages of the Republican National Convention.
Copyright 2009 University of Nottingham