tiny particles, big problems ppt
DESCRIPTION
A Powerpoint presentation for the Tiny Particles, Big Problems! program on nisenet.orgTRANSCRIPT
TINY PARTICLES, BIG PROBLEMS!
Outline
• What is nano?
• Why work in clean rooms?
• How are clean rooms kept clean?
• Who works in clean rooms?
What is nano?
Nano is very, very small!
•A nanometer is a billionth of a meter.
•Molecules are a few nanometers wide.
Why work in clean rooms?
Computer chip withnano-sized features
Silicon wafers with manytiny computer chips
Dust on a computer chip
How are clean rooms kept clean?
Furniture lets air flow through
Supplies don’t release fibers or chemicals
Trash cans sort and vent waste
Who works in clean rooms?
Nanoscientists
Tejal Desai Antje Baeumner Stanley Williams
Review
• What is nano?
• Why work in clean rooms?
• How are clean rooms kept clean?
• Who works in clean rooms?
Image sourcesCourtesy of NASA Marshall Space Flight Center
Courtesy of IBM
iStockphoto.com
Image copyright Dennis Kunkel Microscopy, Inc.
Sciencenter, Ithaca, NY
Image sources (continued)Courtesy of Tejal Desai and University of California San Francisco
Courtesy of Stanley Williams and Hewlett-Packard
Courtesy of Antje Baeumner and Cornell University
This project was supported by the National Science Foundation under Grant No. ESI-0532536.
Any opinions, findings, and conclusions or recommendations are those of the author and do not necessarily reflect the views of the Foundation.