WELCOME TRIGATE TRANSISTOR INTRODUCTION Transistors Microscopic siliconbased switches

WELCOME

TRIGATE TRANSISTOR

INTRODUCTION Transistors ØMicroscopic, silicon-based switches Ø Fundamental building block of all semiconductor chips. Ø With traditional planar transistors, electronic signals travel as if on a flat, one-way road. Ø Transistors shrink to less than 30 nanometers

TRI GATE TRANSISTORS Ø 3 -D structure ØRuns faster, better perfomance ØReduces conventional transistor size ØReduces power dissipation ØIncreases battery life of mobile devices

HISTORY Ø 1950 s- planar transistors acted as the basic building block of microprocessors. Ø 2002 -Intel developed the world’s first CMOS tri-gate transistors. ØPerformance improved by integrating the tri-gate design with silicon process technology Ø Tri- gate transistors are expected to replace the nanometer transistors in the Intel microprocessors by 2012

ARCHITECTURE ØBuilt on an ultra-thin layer of fully depleted silicon ØRaised source and drain structure ØCompatible with the future introduction of a high K gate dielectric ØShow excellent DIBL ØThickness requirement of the Si layer is also relaxed by about 2 -3 times

ARCHITECTURE

MOORE’S LAW Moore's law describes a long-term trend in the history of computing hardware, in which the number of transistors that can be placed inexpensively on an integrated circuit has doubled approximately every two years. Moore's law 21 st centuries precisely describes a driving force of technological and social change in the late 20 th and early.

FABRICATION

FABRICATION DIAGRAMS

PERFORMANCE COMPARISON OF PLANAR AND TRI GATE TRANSISTOR

ØShow excellent control of short channel effects (SCE) ØHigher performance, in terms of drive current

ADVANTAGES ØLower leakage and consume much less power. ØFaster & cooler operation. Ø 45% increase in speed or 50 x reduction in offcurrent. ØThe basic building blocks for future microprocessors. ØMoore's Law scaling can be taken well into the next decade.

APPLICATIONS ØCritical part of INTEL's energy efficient performance ØScaling of silicon transistors ØIncrease battery life of mobile devices

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