a class presentation for vlsi course by “ anahita naghilou ” professor : dr. fakhraei

A Class Presentation for A Class Presentation for VLSI Course VLSI Course

ByBy ““Anahita NaghilouAnahita Naghilou””

Professor : Dr. FakhraeiProfessor : Dr. Fakhraei

A Novel Highly Reliable Low-Power A Novel Highly Reliable Low-Power Nano Architecture When Nano Architecture When von Neumann Augments von Neumann Augments

KolmogorovKolmogorov

Valeriu BeiuValeriu Beiu 1515thth IEEE International Conference IEEE International Conference

September 27-29 2004 September 27-29 2004 Galveston TexasGalveston Texas

OutlineOutline

Neural Network and Kolmogorov’s Neural Network and Kolmogorov’s SuperpositionSuperposition

Analog Versus DigitalAnalog Versus Digital Fault-ToleranceFault-Tolerance Putting Everything TogetherPutting Everything Together

Highly reliable low-power architectureHighly reliable low-power architecture

Neural Network and Kolmogorov’s Neural Network and Kolmogorov’s SuperpositionSuperposition

Artificial neuron functionalityArtificial neuron functionality Non-linear functionsNon-linear functions Kolmogorov superpositionKolmogorov superposition Auto synthesis tool for TLGAuto synthesis tool for TLG Being exponential in Being exponential in nn

Analog Versus DigitalAnalog Versus Digital

Analog dissipates less than digital Analog dissipates less than digital Negative effect of successive analog Negative effect of successive analog

computations on the signal-to-noise ratiocomputations on the signal-to-noise ratio Idea : to use AAA followed by ADA Idea : to use AAA followed by ADA

A A hhybrid link ybrid link

Fault-toleranceFault-tolerance

Reliability as well as power-consumptionReliability as well as power-consumption von Neumann’s multiplexingvon Neumann’s multiplexing

Putting Everything TogetherPutting Everything Together

1. AAA-ADA with von Neumann’s Maj-31. AAA-ADA with von Neumann’s Maj-3

Putting Everything TogetherPutting Everything Together

2. TLG Adder2. TLG Adder 3. Synthesis tool for 3. Synthesis tool for analog partsanalog parts

Computational Structures Computational Structures lead to Communicationlead to Communication

Longer interconnectsLonger interconnects• improving fault-toleranceimproving fault-tolerance• reducing power consumptionreducing power consumption

Simulations with SET, CMOS, Simulations with SET, CMOS,

Pseudo-nMOS, 5-stage ring oscillatorPseudo-nMOS, 5-stage ring oscillator

ConclusionConclusion

An Architecture which can be used with:An Architecture which can be used with:• CMOSCMOS• SETSET• RTDRTD• Molecular onesMolecular ones

Combinational logic versus memoriesCombinational logic versus memories Scaling CMOS increases the operating Scaling CMOS increases the operating

speed of pseudo-nMOSspeed of pseudo-nMOS

ReferencesReferences The International Technology Roadmap for The International Technology Roadmap for

SemiconductorsSemiconductorshttp://public.itrs.nethttp://public.itrs.net

J.E Harlow III, “Toward Design Technology J.E Harlow III, “Toward Design Technology in 2020” : Trends, Issues, ad Challengesin 2020” : Trends, Issues, ad Challenges

V. Beiu “On Kolmogorov’ s Superposition and V. Beiu “On Kolmogorov’ s Superposition and Boolean Functions” Boolean Functions”

V. Beiu “On Automatic Synthesis A/D Circuits”V. Beiu “On Automatic Synthesis A/D Circuits” V. Beiu and A. Zawadzki “Why Library Design V. Beiu and A. Zawadzki “Why Library Design

Should Use Kolmogorov’ s Superposition” Should Use Kolmogorov’ s Superposition” And … And …