الفهرس 
Modeling of short channel effects in MOS structure.Only 14 pages are availabe for public view
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Abstract
As the VLSI technology grows rapidly, the problem of
interconnections that characterize the VLSI circuits becomes more
severe. One solution is the use a three dimensional integrated
circuits, vertical integration. Another approach is to increase
the quantity of information carried by each conducting line on
the chip, namely, multivalued logic signaling.
In this thesis we are taking, in the first place, the trends
towards multivalued logic signaling. We are concerned with the
electronics of the MVL circuits. In other words, the design
methodologies and the corresponding technology that will match
for a certain design are the main objectives of this work.
In chapter.I, we have introduced a general overview of MVL
signaling and the representation schemes for its functions.
Classification of MVL modes in terms of voltage, current, and
charge are also introduced. The different areas of Multivalued
logic applications are discussed.
In chapter.2, The modeling of the MOS parameters due to
scaling down effects will be discussed. For instance, the
modeling of the threshold voltage will help in finding the
circuit noise margin and speed. Hence, this thesis introduces
a scaling down analysis for the MVL circuits. We are using the
circuits analysis program ”IS-SPICE” for circuits simulation. At
the end of each chapter, we can find a list of the ”input decks”
referenced to that chapter.
In chapter.3, the basic building blocks of MVL circuits have
been proposed, in voltage mode and current mode. Circuits
simulation and practical measurements have been made to identify
the circuits operation. from this analysis we have deduced the
maximum number of logical levels that can be used in the proposed
MVL circuits.
In chapter.4, the T-Gate is used as a basic building block
in the design of MVL functions. The different applications
discussed in this chapter are :
1) Implementing some combinational and sequential MVL
functions, using twelve Ternary T-Gate implemented in the lab.
2) Design and simulation of MVL encoder, which simulate the error correcting code of Quaternary message.
3) Designing a circuit that detect the stored level in
Quaternary ROM, where each cell stores a single quat (equivalent
to 2 bits) .
A final conclusion was made about the potential applications
of MVL signaling . To clarify the advantages and disadvatages of
MVL, a comparison is made between Binary and MV signaling.