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Development of a hybrid simulation methodology for circuits composed by MOS and SET transistors
FRANCISCO JAVIER CASTRO GONZALEZ
LIBRADO ARTURO SARMIENTO REYES
Acceso Abierto
Atribución-NoComercial-SinDerivadas
Modelling
Simulation
Single electron transistor
Curve fitting
Nanoelectronics
In a near future, MOS technology is expected to share space in electronic design with emerging technologies. One of these is single-electronics, which implies the generation of circuits employing MOS and single-electron transistors (SET). Integrating components of both technologies SET and MOSFET results in a hybrid circuit. The benefits of combining them are multiples. For instance, the hybrid circuits provide nanoscale dimensions, ultra-low power consumption and the Coulomb Blockade Oscillation phenomenon, all of which are characteristics of the SET. By contrast, high gain and current drive, high speed and very mature fabrication technology are all advantages of the MOSFET technology. Although the benefits of combining MOSFET and SET devices in the same circuit are attractive, there are challenges at every step in the design path. In particular, this thesis focuses on the simulation stage where the main problem is the nature of the flow of the charge, being continuous for CMOS-devices while for SET-devices the flow is discrete. Thus, the methods to solve the equations from both mechanisms are of different natures. The main problem discussed in this thesis is that of tackling the challenge of including electronic nanodevices in the integrated circuit design flow. More specifically, incorporating the SET while employing the electrical modeling standards of the MOS transistor is the central difficulty to be considered. The main objective of this research is to develop the modeling methodology of hybrid circuit simulation MOS-SET. Besides, we will pursue particular objectives such as the development of models for the single-electron transistor at functional level, and the proposed methodology for hybrid simulation. The models that have been developed are fully compatible with standard IC circuit simulation frameworks such as HSPICE. The models have been tested in a series of bench-mark circuits showing excellent results. The straightforward incorporation of the models into the IC verification flow results in a reduction on the simulation time with respect to a model suggested in the literature. Finally, although this work focuses on the modeling of the single-electron transistor device, the methodology proposed can be extended to other devices or systems where the observed/measured data is known.
Instituto Nacional de Astrofísica, Óptica y Electrónica
2015-02
Tesis de doctorado
Inglés
Público en general
Castro-Gonzalez F.J.
DISEÑO DE CIRCUITOS
Aparece en las colecciones: Doctorado en Electrónica

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