Under test conditions, typical silicon-based transistors
such as those in Pentium microprocessors run at about 50 billion to 100 billion cycles per second, or gigahertz (GHz).
Just as aircraft were once believed incapable of breaking an imaginary 'sound barrier', silicon-based transistors
were once thought incapable of breaking a 200GHz speed barrier," said Bernard Meyerson, IBM Fellow and vice president, IBM Communications Research and Development Center.
The result: a dense array of unharmed, working semiconducting nanotube transistors
that can be used to build logic circuits like those found in computer chips.
Because of the conflicting effects that strain has on N-type and P-type transistors
, this whole-wafer approach of building strain into silicon typically improves the performance of one transistor
type more than that of the other.
Specifically, the increasing miniaturization causes greater variations in key transistor
characteristics, especially the threshold voltage (Vth).
On the other hand, the new transistor
simultaneously controls the electric power that drives a lamp and serves as the lamp itself.
RFMD's GaN HEMT transistors
for the wireless cellular market are targeted to the UMTS or 3G base station segment and include the RF3820 (8W), RF3912 (60W), RF3913 (90W) and RF3914 (120W).
Lee and Vivek Subramanian of the University of California, Berkeley say that the perpendicular arrangement of a fabric's fibers should make it possible to wire transistors
such as these new fiber ones into sensing devices, wearable displays, and other electronic devices.
Compared to today's 65nm transistors
, integrated tri-gate transistors
can offer a 45 percent increase in drive current (switching speed) or 50 times reduction in off-current, and 35 percent reduction in transistor
The first transistor
, invented in 1947, was a centimeter-long slab of germanium pressed against the point of a triangle of plastic partly wrapped in gold foil.
Yoshimitsu Kobayashi, President and CEO of MCRC, stated: "This achievement is a superior milestone in the development of organic thin-film transistor
technologies, because this demonstrates that OTFT can be applied to the flat panel displays which require high mobility, such as an OLED.
Now, using a novel method of making transistors
, Jan Hendrik Schon and his colleagues at Lucent Technologies' Bell Labs in Murray Hill, N.