1 / 19

Nano-technology in a nutshell

Dept of Phys. M.C. Chang. Nano-technology in a nutshell. ENIAC circa 1947. Physical characteristics: 17,468 vacuum tubes; 1,500 relays 60,000 pounds; 16,200 cubic feet 174 kilowatts (233 horsepower) 5,000 addition/sec. (~ same as Intel 4004)

galvin
Télécharger la présentation

Nano-technology in a nutshell

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Dept of Phys M.C. Chang Nano-technology in a nutshell

  2. ENIAC circa 1947 Physical characteristics: • 17,468 vacuum tubes; 1,500 relays • 60,000 pounds; 16,200 cubic feet • 174 kilowatts (233 horsepower) • 5,000 addition/sec. (~ same as Intel 4004) • 5.25 MJoule/trajectory (~ fire an artillery shell) Future prediction (Popular Mechanics, 1949): • 1,500 vacuum tubes; 10 kilowatts • 3,000 pounds (~ size of an automobile)

  3. The invention of transistor • (1947, Bardeen, Brattain, Shockley) • small size • less electricity • no movable part • faster turn-on time 1956

  4. Pentium 4 4.2 million transistors The invention of IC (1959, Kilby and Noyce) Intel 4004 (1971) 2250 transistors 2000

  5. A silicon wafer A silicon single crystal

  6. Moore’s law

  7. Moore’s Second Law Cost of Fab $50B $40B 360B $20B $10B $0B 1992 1995 1998 2001 2004 2007 2010 Year

  8. mems microphone (PC, cellular phone) • mems accelerometer (safety bag, Wii, PC, camera, air guitar…) • other mems sensors (pressure, heat …) • mems oscillator (replaces quartz) • optical mems (VSCEL, micro projector) • microfluid (printer…) • biomems • … Micro-Electro-Mechanical Systems (MEMS) Cheaper, better, smaller, response time, energy consumption … + systems-on-a-chip (SOC) = multi-functional, mass production … (lab-on-a-chip)

  9. Motion sensor MEMS mirror DLP micro-projector

  10. gene chip

  11. Micro-fluid chip

  12. Top-down approach

  13. Bottom-up approach

  14. Self-organized (or self-assembled) PbSe dots (on PbEuTe)

  15. Buckminster Fuller Buckminsterfullerene 1996 Carbon nanotube as nanowire

  16. STM (Scanning Tunneling Microscope) 1980, Binning and Rohrer 1986

  17. Quantum corral made by 48 iron atoms (D. Eigler)

  18. Nano-machine, molecular robot … etc

  19. From sub-micron technology to nano-technology -- problems of this century Emergence of quantum effect Quantum wire Quantum dot Self-assembly device Need better grasp of the fundamental physics of materials How long can we keep enjoying the amazing progress? A powerful computer in turn helps us explore the mystery of nature (high-Tc superconductor, DNA-coding, protein folding, drug design, better airplane… etc)

More Related