Phase-change memory cells

US9293199B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-9293199-B2
Application numberUS-201414296507-A
CountryUS
Kind codeB2
Filing dateJun 5, 2014
Priority dateJun 14, 2013
Publication dateMar 22, 2016
Grant dateMar 22, 2016

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  2. Abstract

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  5. First independent claim

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Abstract

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A phase-change memory cell for storing information in a plurality of programmable cell states. The memory cell includes: a phase-change material located between a first electrode and a second electrode for applying a read voltage to the phase-change material to read a programmed cell state; and an electrically-conductive component extending in a direction between the first and second electrodes in contact with the phase-change material and arranged to present, to a cell current produced by the read voltage, a lower-resistance current path than an amorphous phase of the phase-change material in any of the plurality of programmable cell states, said current path having a length dependent on a size of said amorphous phase, wherein a volume of the electrically-conductive component is greater than about half that of said phase-change material.

First claim

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What is claimed is: 1. A phase-change memory cell for storing information in a plurality of programmable cell states, the memory cell comprising: a phase-change material located between a first electrode and a second electrode for applying a read voltage to the phase-change material to read a programmed cell state; and an electrically-conductive component extending in a direction between the first and second electrodes in contact with the phase-change material and arranged to pr…

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What does patent US9293199B2 cover?
A phase-change memory cell for storing information in a plurality of programmable cell states. The memory cell includes: a phase-change material located between a first electrode and a second electrode for applying a read voltage to the phase-change material to read a programmed cell state; and an electrically-conductive component extending in a direction between the first and second electrodes…
Who is the assignee on this patent?
Globalfoundries Inc
What technology area does this patent fall under?
Primary CPC classification G11C13/0004. Mapped technology areas include Physics.
When was this patent published?
Publication date Tue Mar 22 2016 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).