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Keyword: transistors

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  • Graphyne Could Be Better Than Graphene

    03/04/2012 12:33:55 AM PST · by neverdem · 2 replies
    ScienceNOW ^ | 1 March 2012 | Jon Cartwright
    Enlarge Image The new graphene. Graphyne may be less famous than graphene, but it could have better electronic properties. Credit: D. Malko et al., Phys. Rev. Lett. (2012) Graphene, a layer of graphite just one atom thick, isn't called a wonder material for nothing. The subject of the 2010 Nobel Prize in physics, it is famed for its superlative mechanical and electronic properties. Yet new computer simulations suggest that the electronic properties of a little-known sister material of graphene—graphyne—may in some ways be better. The simulations show that graphyne's conduction electrons should travel extremely fast—as they do in graphene—but...
  • Transistors, 1948

    09/02/2009 1:05:58 AM PDT · by neverdem · 63 replies · 2,793+ views
    NY Times ^ | September 1, 2009 | By NICHOLAS BAKALAR
    According to the Oxford English Dictionary, the first time the word transistor appeared in print was in The New York Times on July 1, 1948, in a Page 46 roundup headed The News of Radio. The unsigned article opened with a report of two new radio shows, one called Mr. Tutt, and the other titled Our Miss Brooks, with Eve Arden playing the role of a school teacher who encounters a variety of adventures. The columns last item began, A device called a transistor, which has several applications in radio where a vacuum tube ordinarily is employed, was demonstrated for...
  • After the Transistor, a Leap Into the Microcosm

    09/02/2009 12:47:38 AM PDT · by neverdem · 4 replies · 613+ views
    NY Times ^ | September 1, 2009 | JOHN MARKOFF
    YORKTOWN HEIGHTS, N.Y. Gaze into the electron microscope display in Frances Rosss laboratory here and it is possible to persuade yourself that Dr. Ross, a 21st-century materials scientist, is actually a farmer in some Lilliputian silicon world. Dr. Ross, an I.B.M. researcher, is growing a crop of mushroom-shaped silicon nanowires that may one day become a basic building block for a new kind of electronics. Nanowires are just one example, although one of the most promising, of a transformation now taking place in the material sciences as researchers push to create the next generation of switching devices smaller, faster...
  • Refining Semiconductors, One Atom at a Time

    04/10/2004 12:28:29 PM PDT · by neverdem · 15 replies · 379+ views
    NY Times ^ | April 8, 2004 | ANNE EISENBERG
    At the heart of semiconductor fabrication are crucial additives called dopants. These impurities change the electronic properties of silicon or other material to make the transistors and other components of a chip. Currently these dopants are added in bulk, their exact location usually no more a problem than the exact location of grains of baking soda or raisins stirred into cake batter. But as electronic devices shrink - and the hope is to get them down to the size of a molecule - serious problems with doping are expected. At that small a scale, the location of a needed doping...
  • IBM creates tiniest transistor for silicon chips

    12/08/2002 10:33:27 PM PST · by Ernest_at_the_Beach · 1 replies · 265+ views
    Netscape.News ^ | Dec 9 , 2002 | Reuters
    SAN FRANCISCO, Dec 9 (Reuters) - International Business Machines Corp. will announce on Monday the smallest ever working silicon transistor to serve as the nerve center in electronics ranging from televisions to PCs and cars.For the past 30 years the industry has been shrinking microprocessors -- the brains of computers -- and other chip components to put more function into smaller and smaller cell phones and other computing devices.Transistors, basically the on-off switches that regulate the flow of electronic signals used for computing and other processes, are key parts of the chip.Reducing the size of the on-off switch in the...
  • AMD Announces Technology to Enable Ten-Fold Performance Leap in Future Transistors

    09/10/2002 1:50:40 AM PDT · by JameRetief · 11 replies · 256+ views
    AMD.com ^ | 9-9-2002 | AMD Press Release
    AMD Announces Technology to Enable Ten-Fold Performance Leap in Future Transistors World's smallest version of innovative design can foster better products and lower manufacturing costs Sunnyvale, CA -- September 10, 2002 --AMD today announced it has fabricated the smallest double-gate transistors reported to date using industry standard technology. These transistors, measuring ten nanometers, or ten billionths of a meter in length (gate), are six times smaller than the smallest transistors currently in production. AMD's research breakthrough could foster the placement of a billion transistors on the same size chip that currently holds 100 million transistors, enabling a vastly richer computing...