Download presentation
Presentation is loading. Please wait.
1
There's Plenty of Room at the Bottom ! 1. “.. Computing machines are very large. They fill rooms. Why can’t we make them very small ?… For instance the wires should be 10 or 100 atoms in diameter and the circuits should be a few thousand angstroms across…. ” 2. “The electron microscope is not good enough. … It can only resolve 10Angstroms. I would like to try and impress upon you…. The importance of improving the electron microscope by 100 times. It is not impossible. It is not against the laws of diffraction of the electron…. So, it should be possible to see individual atoms” 3. “ I am not afraid to consider the final question as to whether, ultimately, in the great future, we can arrange the atoms the way we want, the very atoms, all the way down !” By Richard Feynman, APS Annual Meeting, 29 Dec. 1959, at the California Institute of Technology (Caltech). http://www.zyvex.com/nanotech/feynman.html
2
ENIAC, 1945 27,000Kg, 1800 vacuum tubes, 140kW vacuum tube صّمام الإلكترونيّ أول كمبيوتر رقمي First Digital computer الحجم عجيب و قدرته أقل من قدرة حاسبة الجيب !!
3
First Bipolar transistor Shockley, Bardeen and Brattain (1947)
4
أول ترانزيستور (1954) من السيليكون
5
أول دائرة مدمجة First Integrated Circuit J.S. Kilby (TI) 1961
6
رقاقة السليكون Silicon wafer 300mm
7
MOSFET p-Si N+N+ polySi Source Drain Gate N+N+ oxide channel
10
Today’s MOSFET CPU CMOS
11
Electron Beam Lithography and Photolithography EBL and EUVL SiO 2 Silicon PMMA Electron Beam, 200kV, 10nm, 50kHz
12
3-5nm lines obtained by Electron Beam Lithography on PMMA Vieu et al. Appl. Surf. Sci. 164,2000 (111)
14
EUV Lithography
15
13nm EUV Lithography
19
2005 MOSFET Today’s MOSFET 2014 CMOS
21
Carbon Nanotubes
22
نهاية المسار من الأعلى نحو الأسفل ؟ اكتشاف أنابيب الكربون النانومترية Ijima1991
23
http://www.lbl.gov/Science-Articles/Research-Review/Magazine/2001/Fall/features/02Nanotubes.html أنابيب داخل أنابيب : أنابيب متعددة الجدران
24
Carbon Nanotubes Metals if (n,n) and (n-m)=3k Semiconductors otherwise
25
الأنبوب الكربوني ترانزيستورنانومتري نانوأنبوب من الكربون http://www.research.ibm.com/nanoscience/fet.html
26
Carbon Nanotubes http://www.snf.ch/NFP/NFP36/RFFranzoesisch.pdf Phys. Rev. Lett. 85, 5384 (2000) K. Hirahara, K. Suenaga, S. Bandow, H. Kato, T. Okazaki, H. Shinohara, and S. Iijima
27
Nanotube Field Effect transistor (2001) http://www.research.ibm.com/nanoscience/fet.html
30
http://www.nature.com/nsu/010830/010830-7.html#1 Snail cells Plastic pegs
Similar presentations
© 2025 SlidePlayer.com. Inc.
All rights reserved.