Design and Modeling for Nanomagnet Logic Circuits and Architectures

Doctoral Dissertation

Abstract

As a possible replacement or supplementary technology for Complimentary Metal- Oxide-Semiconductor (CMOS) technology, Nanomagnet Logic (NML) employs near- est neighbor dipole-dipole interactions for logic operations. NML has the benefits of low power consumption, non-volatility, radiation hardness, etc. To leverage the benefits of NML, the research in this dissertation has helped advance the state of the art of design and modeling of NML circuits and architectures. The work in this dissertation has shown that the integration of NML with CMOS is feasible through magnetic-electrical interface (MEI) designs based on magnetic tunnel junction. These MEI designs are especially important as hybrid NML and CMOS architectures are approached. As an extension from the MEI work, designs of magnetic content ad- dressable memory based on current induced domain wall motion are compact and energy efficient without sacrificing speed, overcoming a major challenge faced by content addressable memory designs. As much of NML studies need designs and simulations, an NML layout design methodology using energy states tackles the side effect of next nearest neighbor couplings in NML circuits, and a software package developed for assisting simulation is practical and effective for automating NML sim- ulation processes and saving time.

Attributes

Attribute NameValues
URN
  • etd-08282013-220605

Author Shiliang Liu
Advisor X. Sharon Hu
Contributor Michael T. Niemier, Committee Member
Contributor Joseph J. Nahas, Committee Member
Contributor X. Sharon Hu, Committee Chair
Contributor Gyorgy Csaba, Committee Co-Chair
Contributor Gary H. Bernstein, Committee Member
Degree Level Doctoral Dissertation
Degree Discipline Computer Science and Engineering
Degree Name PhD
Defense Date
  • 2013-08-16

Submission Date 2013-08-28
Country
  • United States of America

Subject
  • Simulation

  • Magnetic-Electrical Interface

  • Nanomagnet Logic

  • Modeling

  • Magnetic Tunnel Junction

  • Design

Publisher
  • University of Notre Dame

Language
  • English

Record Visibility and Access Public
Content License
  • All rights reserved

Departments and Units

Files

Please Note: You may encounter a delay before a download begins. Large or infrequently accessed files can take several minutes to retrieve from our archival storage system.