1. www.ppttopics.com

2.  Nanotechnology  Fundamentals  Semiconductor electronics & Nanoelectronics  Milestones in nanohistory  Approaches to Nanoelectronics  Nanostructures  Applications  Future implications  Reference www.ppttopics.com

3.  The study of the controlling of matter on an atomic and molecular scale.  Deals with structures in nanoscale.  1nm=10 -9 m  By dealing with structures at their atomic or molecular level,its properties can be varied without changing its structure.  Properties-physical, chemical,biological, mechanical,electrical & optical. www.ppttopics.com

4.  Nanoelectronics refer to the use of nanotechnology on electronic components, especially transistors.  Nanoelectronics are sometimes considered as disruptive technology.  Nanoscale devices will be built of small assemblies of atoms linked together by bonds to form macro- molecules & nanostructures. www.ppttopics.com

5.  High electric fields  Heat dissipation problems in closely packed structures  Quantum and coherence effects  Single electron transistor (SET) devices and circuits  Negative resistance devices, switches  Innovative systems for effective integration of billions of devices www.ppttopics.com

6. 1959 R. Feynman Delivers “ Plenty of Room at the Bottom” 1974 First Molecular Electronic Device Patented 1981 Scanning Tunneling Microscopic (STM) 1987 First single-electron transistor created 1991 Carbon Nanotubes Discovered 2002. 01 ITRI Nano Research Center Established www.ppttopics.com

7. Single-molecule electronics Solid state nanoelectronics Molecular electronics Molecular logic gate Molecular wires Nanocircuitry Nanowires Nanolithography NEMS Nanosensor www.ppttopics.com

8.  Gordon Moore (co-founder of Intel) predicted in 1965 that the transistor density of semiconductor chips would double roughly every 18 months.  It's not a law! It's a prediction about what device physicists and process engineers can achieve www.ppttopics.com

10. Moore's Law will have run its course around 2019. By that time, transistor features will be just a few atoms in width. But new computer architectures will continue the exponential growth of computing. For example, computing cubes are already being designed that will provide thousands of layers of circuits. Moore's Law Holding! www.ppttopics.com

12. Nanotubes tiny strips of graphite sheet rolled into tubes a few nanometers in diameter and up to hundreds of micrometers (microns) long. Nanopowder Building blocks (less than 100 nm in diameter) for more complex nanostructures. www.ppttopics.com

13.  Nanotubes are members of the fullerene structural family.  Their name is derived from their size, since the diameter of a nanotube is in the order of a few nanometers (approximately 1/50,000th of the width of a human hair), while they can be up to several millimeters in length.  Nanotubes are categorized as single-walled nanotubes (SWNTs) and multi-walled nanotubes(MWNTs). www.ppttopics.com

14.  Batteries capacitors & diodes  Microelectronic heat-sinks & insulation due to high thermal conductivity.  Electron guns for flat-panel displays.  Structural elements in bridges, buildings, towers, and cables  Material for making lightweight vehicles for all terrains  Heavy-duty shock absorbers The joining of two carbon nanotubes with different electrical properties to form a diode has been proposed. L Chico et al. Phys Rev Lett 76, 971 (1996)diode www.ppttopics.com

15.  Nanoparticles are sized between 1 and 100 nanometers.  They may conduct electrons, ions, heat, or light more rea dily than conventional mater ials.  Useful in manufacturing inha lable drugs. www.ppttopics.com

16. COMPUTERS Computer processors using nanowires & nanotubes are more powerful than those with conventional semiconductor fabrication techniques. Faster & smaller. ENERGY PRODUCTION Cheaper & more efficient solar cells with the use of nanomaterials Energy production for devices that would operate in vivo, called bio- nano generators. MEDICAL DIAGNOSTICS Nanoelectronic devices that could detect the concentrations of biomolecules Nanosensors-devices which could interact with single cells. www.ppttopics.com

17.  Nanoradios have been developed structured around carbon nanotubes.  Investigation of potential interconnects.  Fabrication and characterization of individual components to replace the macroscopic silicon components with nanoscale systems. www.ppttopics.com

18. Projected BenefitsPotential Risks  universal clean water supplies.  atomically engineered food and crops  cheap and powerful energy generation  advanced medicine  greater information storage & communication capacities  ‘smart’ appliances  Health issues - the effects of nanomaterials on human biology  Environmental issues - the effects of nanomaterials on the environment  Societal issues - the effects that the availability of nanotechnological devices will have on politics and human interaction  “Grey Goo" - the specific risks associated with the speculative vision of molecular nanotechnology www.ppttopics.com

19.  Nanoelectronics and nanosystems By K. Goser, Peter Glösekötter, Jan Dienstuhl  http://nanohub.org/tags/nanoelectronics  http://en.wikipedia.org/wiki/Nanoelectronics  http://en.wikipedia.org/wiki/Nanotube  http://www.youtube.com/results?search_quer y=nanoelectronics&aq=0  http://www.physics.mcgill.ca/~peter/nanoele ctronics.htm  http://www.mesaplus.utwente.nl/nanoelectro nics www.ppttopics.com

20. THANK YOU