Technology:
NTT and Tokyo Institute of Technology developed a technology to reduce power consumption of
an LSI to less than one hundredth. Because light can transmit a signal with a considerably
smaller amount of energy than an electron, application of light signals has spread
to the short distance communications between computers. However, it is
necessary to control such a short spectrum about 10 nanometers to use light
signals inside an LSI.
The two
organizations successfully developed an infrastructure technology to handle
light signals even in the nano region. They created a physical phenomenon
called plasmon that vibrates by the concentration difference between the part with
a large number of electrons and that with a small number of electrons inside graphene
(sheet-shaped carbon molecules) known as an advanced material made of carbon. The
two organizations plan to build a trial product in less than two years. The
research results were published in the latest issue of the British science magazine “NatureCommunications.”
Relations between
increasing performance and
increasing power consumption of a system LSI
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