| Interesting questions from Fall 2005 EE42/EE100 students. | |
(from http://www.oup.com/images/booksites/higson/higson_fig10.20.jpg) |
Chemical FET can be used to convert an ion concentration into
a change in gate potential. Some variants could lead to an ``electronic nose''.
ChemFET description from Univ. of Utah |
Lec #5 9/13
(from http://www.zurich.ibm.com/st/storage/millipede.html) |
IBM Millipede Target density of 1 TB/ sq.in. using atomic force
microscope (AFM) array.
How AFM Works (This note describes using optical sensing of the AFM probe, but resistive cantilever sensing can also be used.) |
| Lec #4 9/8 | US # 474,230 Speaking Telegraph T.A. Edison, May 3, 1892. |
(from http://www.users.cloud9.net/~stark/commbook.htm, Fig. 16-5). |
Explanation of POTS (Plain old telephone service). Please see
chapter 16 of
Communications 101 Textbook by Peter Stark .
Notes on interfacing POTS (Thanks to Aleksandr Prodan for the link). |