Phase change memory stack with treated sidewalls
US-2015318038-A1 · Nov 5, 2015 · US
Variable resistance element and semiconductor storage device
US9070876B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9070876-B2 |
| Application number | US-201114004121-A |
| Country | US |
| Kind code | B2 |
| Filing date | Nov 15, 2011 |
| Priority date | Mar 18, 2011 |
| Publication date | Jun 30, 2015 |
| Grant date | Jun 30, 2015 |
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Abstract
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A variable resistance element is formed by sandwiching a metal oxide layer whose resistance changes between a pair of electrodes and the metal oxide layer includes a pair of variable resistance layers whose resistances change by formation of a current path and a branching suppression layer which is sandwiched between the variable resistance layers and suppresses branching of the current path.
First claim
Opening claim text (preview).
The invention claimed is: 1. A variable resistance element, comprising: a metal oxide layer having a variable resistance, sandwiched between a pair of electrodes, the metal oxide layer comprising: a pair of variable resistance layers having resistances which change by formation of a current path; and a branching suppression layer which is sandwiched between the variable resistance layers and suppresses branching of the current path, wherein the variable resistance layer and…
Assignees
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Classifications
Electricity · mapped topic
- H01L45/145Primary
Electricity · mapped topic
Electricity · mapped topic
Electricity · mapped topic
Electricity · mapped topic
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Frequently asked questions
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- What does patent US9070876B2 cover?
- A variable resistance element is formed by sandwiching a metal oxide layer whose resistance changes between a pair of electrodes and the metal oxide layer includes a pair of variable resistance layers whose resistances change by formation of a current path and a branching suppression layer which is sandwiched between the variable resistance layers and suppresses branching of the current path.
- Who is the assignee on this patent?
- Ito Kimihiko, Nec Corp
- What technology area does this patent fall under?
- Primary CPC classification H01L45/145. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Jun 30 2015 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).