Two-terminal memory electrode comprising a non-continuous contact surface

US10134984B1 · kind B1 · utility

Assignee

• CrossBar, Inc. · US

Inventors

• Sung Hyun Jo · Sunnyvale, US
• Joanna Bettinger · Oakland, US
• Xianliang Liu · Emeryville, US
• Zeying Ren · Albany, US
• Xu Zhao · Lanzhou, CN
• FNU Atiquzzaman · Berkeley, US

Key dates

• Filing date: Dec 31, 2014
• Grant date: Nov 20, 2018
• Expiry date: Mar 16, 2035

Classification

• Technology area (CPC H): Electricity
• CPC primary: H10N70/8833

Abstract

Providing an electrode for a two-terminal memory device is described herein. By way of example, the electrode can comprise a contact surface that comprises at least one surface discontinuity. For instance, the electrode can have a gap, break, or other discontinuous portion of a surface that makes electrical contact with another component of the two-terminal memory device. In one example, the contact surface can comprise an annulus or an approximation of an annulus, having a discontinuity within a center of the annulus, for instance. In some embodiments, a disclosed electrode can be formed from a conductive layer deposited over a non-continuous surface formed by a via or trench in an insulator, or over a pillar device formed from or on the insulator.