5 MEMS AND NANOTECHNOLOGY


5.3 Extending skills


note-taking symbols • stress within words • lecture language


A Look at the student notes on the right. They are from the lecture in Lesson 5.2.


1 What do the symbols and abbreviations mean?


2 The notes contain some mistakes. Find and correct them.


3 Add the corrected information to your own notes.


B ≤Listen to the final part of the lecture. 1 Complete your notes.


2 Why does the lecture have to stop? 3 What is the research task?


C ≤Listen to some stressed syllables. Identify the word below in each case. Number each word.


Example: You hear: 1 sem /sem/ You write: assignment device


discussion engineer


materials outline polymer practical


D Study the extract from the lecture on the right.


1 Think of one word for each space. 2


≤Listen and check your ideas.


3 Match words or phrases from the blue box with each word or phrase from the lecture.


4 Think of other words or phrases with similar meanings.


anyway basically bear in mind clearly indeed now of course plainly that is to say what’s worth mentioning


E Discuss the research task set by the lecturer.


1 What kind of information should you find?


2 What do you already know? 3 Where can you find more information?


research seminar silicon


viscosity , in terms of design, MEMS


devices are made using similar techniques to those used to make silicon chips. In other , the devices are usually planar , this


and assembled in layers.


might sound like electronics, and it does, , have a lot in common with


electronics. But that MEMS is also


about micro-mechanical systems – I mean, things that actually move! What’s is that in order to make devices work, engineers need to use techniques such as the finite element method for stress analysis. As a of fact, it’s the same method that structural engineers use to analyze buildings!


41


MEMS applications mkt. = c. $40 m/yr. sensors (most devices)


accelerometers e.g., airbags,


Nintendo (Wii) gyroscopes


e.g., aircraft, iPhone


press. sensors e.g., car eng. systs., indus. processes, med. devices


inkjet printer


respond to movmnt.


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