Semiconductor memory device

US8971092B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-8971092-B2
Application numberUS-201314021052-A
CountryUS
Kind codeB2
Filing dateSep 9, 2013
Priority dateFeb 28, 2013
Publication dateMar 3, 2015
Grant dateMar 3, 2015

How to read this patent

A practical reading order for non-experts. Skip the full description unless you need deep technical detail.

  1. Title

    What the patent document calls the invention.

  2. Abstract

    A short plain-language summary of the technical disclosure.

  3. Assignees and inventors

    Who owns or filed the patent and who is credited as inventor.

  4. Key dates

    Filing, priority, publication, and grant dates set the timeline.

  5. First independent claim

    The legal scope of protection — read this for what is actually claimed.

  6. CPC / IPC classifications

    Technology tags used to group this patent with similar filings.

  7. Citations and related patents

    Prior art links and similar publications in this corpus.

Abstract

Official abstract text for this publication.

A memory cell array includes first wiring lines, and second wiring lines, the first and second wiring lines intersecting, and memory cells disposed in the intersections of the first and second wiring lines, the memory cells including a variable resistance element. A control circuit controls voltages of selected first and second wiring lines. The first wiring lines are arranged at a first pitch in a first direction perpendicular to a substrate and extend in a second direction parallel to the substrate. The second wiring lines are arranged at a second pitch in the second direction and extend in the first direction. The control circuit is configured to change voltages applied to a selected first wiring line according to the positions of the selected first wiring lines in the first direction.

First claim

Opening claim text (preview).

What is claimed is: 1. A semiconductor memory device comprising: a memory cell array comprising first wiring lines, and second wiring lines, the first and second wiring lines intersecting, and memory cells disposed in the intersections of the first and second wiring lines, memory cells having a variable resistance element; and a control circuit configured to control voltages of selected first and second wiring lines, the first wiring lines being arranged at a first pitch in a…

Assignees

Inventors

Classifications

Patent family

Related publications grouped by family.

External sources

Next steps

Free tools are coming soon. Tell us what you want to track and we'll notify you.

Frequently asked questions

Answers are generated from the same data shown on this page.

What does patent US8971092B2 cover?
A memory cell array includes first wiring lines, and second wiring lines, the first and second wiring lines intersecting, and memory cells disposed in the intersections of the first and second wiring lines, the memory cells including a variable resistance element. A control circuit controls voltages of selected first and second wiring lines. The first wiring lines are arranged at a first pitch …
Who is the assignee on this patent?
Toshiba Kk
What technology area does this patent fall under?
Primary CPC classification G11C13/0007. Mapped technology areas include Physics.
When was this patent published?
Publication date Tue Mar 03 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).