3D non-volatile memory device, memory system including the same, and method of manufacturing the same

US9105515B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-9105515-B2
Application numberUS-201414559594-A
CountryUS
Kind codeB2
Filing dateDec 3, 2014
Priority dateDec 20, 2011
Publication dateAug 11, 2015
Grant dateAug 11, 2015

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Abstract

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A three-dimensional 3D nonvolatile memory device includes vertical channel layers protruding from a substrate; interlayer insulating layers and conductive layer patterns alternately deposited along the vertical channel layers; a barrier metal pattern surrounding each of the conductive layer patterns; a charge blocking layer interposed between the vertical channel layers and the barrier metal patterns; and a diffusion barrier layer interposed between the barrier metal patterns and the charge blocking layer.

First claim

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What is claimed is: 1. A method of manufacturing a 3D non-volatile memory device, comprising: alternately depositing first material layers and second material layers on a substrate; forming vertical channel layers passing through the first material layers and the second material layers; forming a slit between the vertical channel layers by etching the first material layers and the second material layers; forming trenches by removing the second material layers exposed through…

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What does patent US9105515B2 cover?
A three-dimensional 3D nonvolatile memory device includes vertical channel layers protruding from a substrate; interlayer insulating layers and conductive layer patterns alternately deposited along the vertical channel layers; a barrier metal pattern surrounding each of the conductive layer patterns; a charge blocking layer interposed between the vertical channel layers and the barrier metal pa…
Who is the assignee on this patent?
Sk Hynix Inc
What technology area does this patent fall under?
Primary CPC classification H10D30/0413. Mapped technology areas include Electricity.
When was this patent published?
Publication date Tue Aug 11 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).