JP2011524091A - 電気的に絶縁された支柱のダイオードのための共有ダイオード要素部を有するレール積層体を備えた不揮発性メモリアレイ - Google Patents
電気的に絶縁された支柱のダイオードのための共有ダイオード要素部を有するレール積層体を備えた不揮発性メモリアレイ Download PDFInfo
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10B—ELECTRONIC MEMORY DEVICES
- H10B20/00—Read-only memory [ROM] devices
- H10B20/10—ROM devices comprising bipolar components
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10B—ELECTRONIC MEMORY DEVICES
- H10B63/00—Resistance change memory devices, e.g. resistive RAM [ReRAM] devices
- H10B63/20—Resistance change memory devices, e.g. resistive RAM [ReRAM] devices comprising selection components having two electrodes, e.g. diodes
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10B—ELECTRONIC MEMORY DEVICES
- H10B63/00—Resistance change memory devices, e.g. resistive RAM [ReRAM] devices
- H10B63/80—Arrangements comprising multiple bistable or multi-stable switching components of the same type on a plane parallel to the substrate, e.g. cross-point arrays
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Abstract
Description
Claims (15)
- 基板の上方を第1方向に伸びている第1導体と、
第2導体および第1ダイオード要素の第1部分を備える第1の一連の帯部と、
前記第1導体と前記第1の一連の帯部との間に形成されている支柱と、を備え、
前記第1の一連の帯部は前記基板の上方を第2方向に伸びており、
前記第2方向は前記第1方向に略直交しており、
前記支柱は、前記第1導体と前記第1の一連の帯部との間に直列に存在する、前記第1ダイオード要素の第2部分と、第2ダイオード要素と、状態変化素子とを含んでいる、集積回路装置。 - 前記第1ダイオード要素の前記第1部分は、ポリシリコンの真性層を備え、
前記第1ダイオード要素の前記第2部分は、ポリシリコンの真性層を備える、
請求項1に記載の集積回路装置。 - 前記第2ダイオード要素は、第1導電型の高濃度にドープされたシリコン領域を備える、
請求項1または2に記載の集積回路装置。 - 前記第1の一連の帯部は、
前記第2導体と前記第1ダイオード要素の前記第1部分との間に形成された、第2導電型の高濃度にドープされたポリシリコン領域をさらに備える、
請求項3に記載の集積回路装置。 - 前記第1ダイオード要素の前記第1部分は、第1導電型の低濃度にドープされたポリシリコンの層を備え、
前記第1ダイオード要素の前記第2部分は、第1導電型の低濃度にドープされたポリシリコンの層を備え、
前記第2ダイオード要素は、第2導電型の高濃度にドープされたポリシリコン領域を備え、
前記第2導電型は前記第1導電型と反対の型である、
請求項1に記載の集積回路装置。 - 前記状態変化素子はアンチヒューズである、
請求項1ないし5の何れか1項に記載の集積回路装置。 - 前記アンチヒューズは、前記第1要素の前記第2部分と前記第2ダイオード要素との間に形成されている、
請求項6に記載の集積回路装置。 - 前記支柱は、前記第1ダイオード要素、前記第2ダイオード要素および前記状態変化素子と直列なアンチヒューズをさらに備える、
請求項1ないし5の何れか1項に記載の集積回路装置。 - 前記第1導体、前記第2導体、前記第1ダイオード要素の前記第1部分、前記第1ダイオード要素の前記第2部分、および前記第2ダイオード要素は、少なくとも1つの不揮発性記憶素子を形成する、
請求項1ないし8の何れか1項に記載の集積回路装置。 - 前記集積回路は、モノリシックな3次元の不揮発性メモリアレイを備え、
前記少なくとも1つの不揮発性記憶素子は、前記モノリシックな3次元の不揮発性メモリアレイの第1メモリレベルで形成されており、
前記集積回路は、少なくとも1つの追加的なメモリレベルを備えている、
請求項9に記載の集積回路装置。 - 基板の上方の第1高さに、略平行および略同一平面内の複数の第1導体を形成するステップを備え、
前記第1導体は第1方向に伸びており、
基板の上方の第2高さに、略平行および略同一平面内の複数のレール積層体を形成するステップを備え、
前記レール積層体は前記第1方向と略直交する第2方向に伸びており、
レール積層体の各々は、第2導体と、前記レール積層体に関連する複数のダイオードについての第1ダイオード要素の第1部分を含んでおり、
複数の第1導体と複数のレール積層体との交差点の間に、複数の支柱を形成するステップを備え、
前記複数の支柱は、第1レール積層体と前記複数の第1導体との間に形成されている第1の支柱群を備え、
前記第1の支柱群の各々は、前記第1レール積層体に関連する前記複数のダイオードについての前記第1ダイオード要素の第2部分と、第2ダイオード要素と、状態変化素子を備える、
集積回路装置の製造方法。 - 前記第1支柱群内の各々の支柱の前記第2ダイオード要素は、第1導電型の高濃度にドープされたポリシリコン層であり、
各々のレール積層体の前記第1ダイオード要素の第1部分は、ポリシリコンの真性層であり、
前記第1支柱群内の各々の支柱の前記第1ダイオード要素の前記第2部分は、ポリシリコンの真性層である、
請求項11に記載の方法。 - 複数の第1導体、前記第2導体、前記第1ダイオード要素、前記第2ダイオード要素、および前記状態変化素子は、複数の不揮発性記憶素子を形成し、
前記不揮発性半導体メモリは、モノリシックな3次元の不揮発性メモリアレイを備え、
前記複数の不揮発性記憶素子は、前記モノリシックな3次元の不揮発性メモリアレイの第1メモリレベルで形成されており、
前記集積回路は、少なくとも1つの追加的なメモリレベルを備えている、
請求項11または12に記載の方法。 - 前記基板上方の前記第2高さは、前記基板上方の前記第1高さよりも高い、
請求項11ないし13の何れか1項に記載の方法。 - 第1の導電層を基板上に形成するステップを備え、
高濃度にドープされたポリシリコン層を前記第1の導電層の表面に形成するステップを備え、
前記高濃度にドープされたポリシリコン層の表面にアンチヒューズ層を形成するステップを備え、
前記アンチヒューズ層の表面に第1の真性ポリシリコン層を形成するステップを備え、
前記第1の真性ポリシリコン層の表面に第1パターンを適用するステップを備え、
第1の導電層、高濃度にドープされたポリシリコン層、アンチヒューズ層、および第1の真性ポリシリコン層を、前記第1パターンに従ってエッチングするステップを備え、
パターニングおよびエッチングは、前記第1方向に伸びる各層の帯部を形成し、
前記帯部は、前記複数の第1導体を備え、
パターニングおよびエッチングの後に、前記第1の真性ポリシリコン層の表面に第2の真性ポリシリコン層を形成するステップを備え、
前記第2の真性ポリシリコン層の表面に第2の導電層を形成するステップを備え、
前記第2の導電層の表面に第2パターンを適用するステップを備え、
前記複数のレール積層体を形成するために、前記第2の導電層および前記第2の真性ポリシリコン層を前記第2パターンに従ってエッチングするステップを備え、
前記第2の真性ポリシリコン層は、各レール積層体の前記第1ダイオード要素の前記第1部分を形成しており、
前記第2導電層は、各レール積層体の前記第2導体を形成しており、
前記複数の支柱を形成するために、第1の真性ポリシリコン層、前記アンチヒューズ層、および前記高濃度にドープされたポリシリコン層を、前記第2パターンに従ってエッチングするステップを備える、
請求項19に記載の方法。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US12/139,435 US8154005B2 (en) | 2008-06-13 | 2008-06-13 | Non-volatile memory arrays comprising rail stacks with a shared diode component portion for diodes of electrically isolated pillars |
US12/139,435 | 2008-06-13 | ||
PCT/US2009/046001 WO2009152001A1 (en) | 2008-06-13 | 2009-06-02 | Non-volatile memory arrays comprising rail stacks with a shared diode component portion for diodes of electrically isolated pillars |
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JP2011524091A true JP2011524091A (ja) | 2011-08-25 |
JP2011524091A5 JP2011524091A5 (ja) | 2012-05-24 |
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US (2) | US8154005B2 (ja) |
EP (1) | EP2286453A1 (ja) |
JP (1) | JP2011524091A (ja) |
KR (1) | KR20110039260A (ja) |
CN (1) | CN102067315B (ja) |
TW (1) | TWI582907B (ja) |
WO (1) | WO2009152001A1 (ja) |
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EP2286453A1 (en) | 2011-02-23 |
CN102067315A (zh) | 2011-05-18 |
US8748859B2 (en) | 2014-06-10 |
US20120187361A1 (en) | 2012-07-26 |
KR20110039260A (ko) | 2011-04-15 |
CN102067315B (zh) | 2013-04-24 |
US8154005B2 (en) | 2012-04-10 |
WO2009152001A1 (en) | 2009-12-17 |
TW201007887A (en) | 2010-02-16 |
US20090309089A1 (en) | 2009-12-17 |
TWI582907B (zh) | 2017-05-11 |
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