Integration of a niobium oxide selector on a tantalum oxide memristor by local oxidation using Joule heating

Juan J. Díaz León; Kate J. Norris; John F. Sevic; Nobuhiko P. Kobayashi

doi:10.1117/12.2239609

27 September 2016 Integration of a niobium oxide selector on a tantalum oxide memristor by local oxidation using Joule heating

Juan J. Díaz León, Kate J. Norris, John F. Sevic, Nobuhiko P. Kobayashi

Author Affiliations +

Proceedings Volume 9924, Low-Dimensional Materials and Devices 2016; 99240I (2016) https://doi.org/10.1117/12.2239609
Event: SPIE Nanoscience + Engineering, 2016, San Diego, California, United States

Abstract

Memristive devices are two-terminal electrical switches with electrical resistance that depends on a state variable equivalent to electrical charge. In practice, multiple memristive devices are arranged into a crossbar array to form such components as memory and logic. For reliable operation of the crossbar array, electrical current sneak paths need to be eliminated by combining a highly nonlinear component, known as selector, with a memristive device. This ensures the explicit selection of an intended memristive device without disturbing the states of surrounding devices. However, integrating a selector onto a memristive device at the circuit level is not an appealing option for large scale integration. In this paper, a monolithic structure that contains a memristive device and a self-aligned selector is presented. A niobium oxide (NbO₂) selector is built directly on a tantalum oxide (TaO_x) memristive device by fist depositing an Nb layer on a TaO_x memristive device and then forming NbO₂ at the Nb/TaO_x interface. Discussion will focus on an experimental and theoretical assessment on the electrothermal behavior of the Nb/TaO_x structure that results in NbO2/TaO_x selector/memristive devices.

Citation Download Citation

Juan J. Díaz León, Kate J. Norris, John F. Sevic, and Nobuhiko P. Kobayashi "Integration of a niobium oxide selector on a tantalum oxide memristor by local oxidation using Joule heating", Proc. SPIE 9924, Low-Dimensional Materials and Devices 2016, 99240I (27 September 2016); https://doi.org/10.1117/12.2239609

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available