Spintronic & Beyond-CMOS Computing System Integration

07/03/2018 to 07/04/2018
Picture of Joseph Friedman

Tuesday 3 and  Wednesday 4 July
2 pm
INRIM, Conference Room

Joseph Friedman
NanoSpinCompute Laboratory
Department of Electrical & Computer Engineering
The University of Texas at Dallas



Numerous nanodevices have been developed with exotic electronic and spintronic characteristics. However, it is not obvious how to best connect these devices to each other in cascaded systems that exploit their unique behavior.

In this three-lecture tutorial, I describe and analyze the wide range of techniques for cascading logic devices.

In addition to the electronic cascading mechanisms of conventional computers, this course evaluates recently proposed integration techniques for new nanocomputing systems. I particularly emphasize spintronics, in which the rich physics enable a large variety of cascading mechanisms.

In contrast to conventional presentations that follow the vertical integration of a single device from the physics to the full system performance, this course provides a cross-section of cascading techniques for numerous devices. The advantages and drawbacks of the techniques are evaluated to provide inspiration for innovative circuit designs based on novel devices.

These lectures are intended for a general scientific/engineering audience; no background on computing or spintronics is required to understand the lectures.

Lecture 1
Cascading Techniques in Electronic Computing

Computing System Requirements
Levels of Configurability

Diode Logic
Pull-Down Logic (DCTL/RTL/DTL/ TTL/ NMOS)
Complementary Pull-Up & Pull-Down Logic (CMOS)
Differential Logic (ECL/CML)
Transmission Logic
Dynamic Pull-Down Logic
Complementary Beyond-CMOS Logic (CNT-FET/Graphene FET/Spin-FET)
Complementary Ambipolar Logic
Threshold Logic (Differential/Memristor/Four-Gate JFET*)
Memristor Implication Logic
Complementary Resistive Switch Logic
Non-Volatile Electronics

Lecture 2
Spintronic Cascading with Magnetic Tunnel Junctions

Electron Spin & Magnetic Domains
Biot-Savart & Dipole Coupling
Spin Currents & Waves
Spin-Transfer Torque
Tunneling Magnetoresistance

Programmed MTJ Logic
Clocked MTJ Logic
Field-Programmable MTJ Logic
Spin-Torque Majority Gate Logic
“All-Spin Logic”
Domain Wall MTJ Logic
CMAT: Complementary MTJ Logic*

Lecture 3
Alternative Spintronic Cascading Techniques

Non-Ferromagnetic Magnetoresistance
Domain Wall Chirality
Magnetic Skyrmions

Magnetic Core Logic
Complementary Spin-FET Logic
Spin Wave Logic
Nanomagnet Logic (MQCA)
Magnetic Domain Wall Logic
Domain Wall Chirality Logic
Shape-Based Magnetic Skyrmion Logic
Domain Wall Magnetic Skyrmion Logic
Magnetic Skyrmion Majority Gate Logic
Spin Accumulation Logic
Bilayer Avalanche Diode Logic
Spin-Diode Logic*(All-Carbon Spin Logic*)
Emitter-Coupled Spin-Transistor Logic*

*Logic families proposed by the speaker; background material in italics


Biographical Sketch

Dr. Joseph S. Friedman is an assistant professor of Electrical & Computer Engineering at The University of Texas at Dallas.

He holds a Ph.D. and M.S. in Electrical & Computer Engineering from Northwestern University and undergraduate degrees from Dartmouth College.

He was previously a CNRS Research Associate with Université Paris-Saclay, a guest scientist at RWTH Aachen University, and worked on logic design automation at Intel Corporation.

He is a member of the editorial board of the Microelectronics Journal, the technical program committees of SPIE Spintronics, DAC, NANOARCH, GLSVLSI, and ICECS, and the ISCAS review committee.

He has also been awarded a Fulbright Postdoctoral Fellowship.

Last modified: 08/30/2018 - 16:00