JP6019220B2 - 順列メモリセル - Google Patents
順列メモリセル Download PDFInfo
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- JP6019220B2 JP6019220B2 JP2015511609A JP2015511609A JP6019220B2 JP 6019220 B2 JP6019220 B2 JP 6019220B2 JP 2015511609 A JP2015511609 A JP 2015511609A JP 2015511609 A JP2015511609 A JP 2015511609A JP 6019220 B2 JP6019220 B2 JP 6019220B2
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- 229910021645 metal ion Inorganic materials 0.000 description 3
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 3
- 239000004065 semiconductor Substances 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 229910005839 GeS 2 Inorganic materials 0.000 description 2
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- 101100421142 Mus musculus Selenon gene Proteins 0.000 description 1
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- 101100048260 Saccharomyces cerevisiae (strain ATCC 204508 / S288c) UBX2 gene Proteins 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
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- NRTOMJZYCJJWKI-UHFFFAOYSA-N Titanium nitride Chemical compound [Ti]#N NRTOMJZYCJJWKI-UHFFFAOYSA-N 0.000 description 1
- 229910006501 ZrSiO Inorganic materials 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 238000003491 array Methods 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
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- 239000010703 silicon Substances 0.000 description 1
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- 239000004332 silver Substances 0.000 description 1
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- 229910052715 tantalum Inorganic materials 0.000 description 1
- GUVRBAGPIYLISA-UHFFFAOYSA-N tantalum atom Chemical compound [Ta] GUVRBAGPIYLISA-UHFFFAOYSA-N 0.000 description 1
- MZLGASXMSKOWSE-UHFFFAOYSA-N tantalum nitride Chemical compound [Ta]#N MZLGASXMSKOWSE-UHFFFAOYSA-N 0.000 description 1
- JBQYATWDVHIOAR-UHFFFAOYSA-N tellanylidenegermanium Chemical compound [Te]=[Ge] JBQYATWDVHIOAR-UHFFFAOYSA-N 0.000 description 1
- XSOKHXFFCGXDJZ-UHFFFAOYSA-N telluride(2-) Chemical compound [Te-2] XSOKHXFFCGXDJZ-UHFFFAOYSA-N 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 1
- 229910052721 tungsten Inorganic materials 0.000 description 1
- 239000010937 tungsten Substances 0.000 description 1
Classifications
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- G11C13/0011—RRAM elements whose operation depends upon chemical change comprising conductive bridging RAM [CBRAM] or programming metallization cells [PMCs]
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10B—ELECTRONIC MEMORY DEVICES
- H10B53/00—Ferroelectric RAM [FeRAM] devices comprising ferroelectric memory capacitors
- H10B53/50—Ferroelectric RAM [FeRAM] devices comprising ferroelectric memory capacitors characterised by the boundary region between the core and peripheral circuit regions
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- G11C11/5614—Digital stores characterised by the use of particular electric or magnetic storage elements; Storage elements therefor using storage elements with more than two stable states represented by steps, e.g. of voltage, current, phase, frequency using conductive bridging RAM [CBRAM] or programming metallization cells [PMC]
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- G11C11/5685—Digital stores characterised by the use of particular electric or magnetic storage elements; Storage elements therefor using storage elements with more than two stable states represented by steps, e.g. of voltage, current, phase, frequency using storage elements comprising metal oxide memory material, e.g. perovskites
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- G11C29/04—Detection or location of defective memory elements, e.g. cell constructio details, timing of test signals
- G11C29/08—Functional testing, e.g. testing during refresh, power-on self testing [POST] or distributed testing
- G11C29/12—Built-in arrangements for testing, e.g. built-in self testing [BIST] or interconnection details
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- G11C11/5678—Digital stores characterised by the use of particular electric or magnetic storage elements; Storage elements therefor using storage elements with more than two stable states represented by steps, e.g. of voltage, current, phase, frequency using amorphous/crystalline phase transition storage elements
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- Engineering & Computer Science (AREA)
- Computer Hardware Design (AREA)
- Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Semiconductor Memories (AREA)
Description
本出願は、2012年5月11日に出願された米国出願第13/469,706号に対する優先権の恩典を主張するものであり、それはその全体が参照により本明細書に組み込まれる。
コンピュータおよび他の電子システム、例えば、デジタルテレビ、デジタルカメラ、および携帯電話は、情報を記憶するためにしばしば1つ以上のメモリデバイスを有する。ますます、メモリデバイスは、より高い記憶密度を達成するためにサイズが減少している。増大した密度が達成されたときでさえ、消費者は、メモリデバイスもまた、高速アクセスを維持しながらもより少ない電力を使用することをしばしば要求する。
以下の説明においては、説明の目的上、本発明の主題の様々な実施形態の理解を提供するために、多くの具体的な詳細を記載する。本開示を読んだ後では、本主題の様々な実施形態はこれらの具体的な詳細なしで実行され得ることが、しかしながら、当業者には明瞭であろう。さらに、公知の装置および方法が、様々な実施形態の説明を曖昧にしないために、詳細に示されている。
Claims (26)
- 複数の抵抗変化メモリ(RCM)セルであって、六方最密充填アレイを平面的に構成するように配置された、複数のRCMセルと、
前記複数のRCMセルにそれぞれ電気的に連結された複数の電気接点と、
前記複数の電気接点の中の複数の隣り合う電気接点セット間に配置されたメモリセル材料であって、前記複数の隣り合う電気接点セット間に導電経路を形成することが可能である、メモリセル材料と、
を備える、装置。 - 前記導電経路を、前記六方最密充填アレイにおける中心のRCMセルの電気接点とその周りの六つのRCMセルの各々の電気接点との間にそれぞれ形成するように構成されている、請求項1に記載の装置。
- 前記複数のRCMセルの各々が、導電ブリッジ(conductive−bridging)ランダムアクセスメモリ(CBRAM)セルを含む、請求項1または2に記載の装置。
- 前記複数のRCMセルの各々が、抵抗性ランダムアクセスメモリ(RRAM)セルを含む、請求項1または2に記載の装置。
- 前記複数のRCMセルの各々が、単一レベルセルのメモリデバイスを含む、請求項1乃至4のいずれか1項に記載の装置。
- 前記複数のRCMセルの各々が、マルチレベルセルのメモリデバイスを含む、請求項1乃至4のいずれか1項に記載の装置。
- 前記メモリセル材料が、カルコゲニド材料を含む、請求項1乃至6のいずれか1項に記載の装置。
- 前記複数の電気接点の各々が、易酸化性金属材料を含むアノードである、請求項1乃至7のいずれか1項に記載の装置。
- 前記複数の電気接点の各々が、不活性材料を含むカソードである、請求項1乃至7のいずれか1項に記載の装置。
- 複数の抵抗変化メモリ(RCM)セルであって、方形アレイを平面的に構成するように配置された、複数のRCMセルと、
前記複数のRCMセルにそれぞれ電気的に連結された複数の電気接点と、
前記複数の電気接点の中の複数の隣り合う電気接点セット間に配置されたメモリセル材料であって、前記複数の隣り合う電気接点セット間に導電経路を形成することが可能である、メモリセル材料と、
を備え、
前記導電経路を、前記方形アレイを平面的に構成するように配置された四つのRCMセルのうちの、二つの対角線の夫々上にあるRCMセル間を含む、六つの隣り合うRCMセルの電気接点セット間に、それぞれ形成するように構成されている、装置。 - 複数の抵抗変化メモリ(RCM)セルであって、方形アレイを平面的に構成するように配置された、複数のRCMセルと、
前記複数のRCMセルにそれぞれ電気的に連結された複数の電気接点と、
前記複数の電気接点の中の複数の隣り合う電気接点セット間に配置されたメモリセル材料であって、前記複数の隣り合う電気接点セット間に導電経路を形成することが可能である、メモリセル材料と、
を備え、
前記導電経路を、前記方形アレイを平面的に構成するように配置された四つのRCMセルのうちの、二つの対角線のうちの一方の対角線上にあるRCMセル間は含むが他方の対角線上にあるRCMセル間は除いた、五つの隣り合うRCMセルの電気接点セット間に、それぞれ形成するように構成されている、装置。 - 前記複数のRCMセルの各々が、導電ブリッジ(conductive−bridging)ランダムアクセスメモリ(CBRAM)セルを含む、請求項10または11に記載の装置。
- 前記複数のRCMセルの各々が、抵抗性ランダムアクセスメモリ(RRAM)セルを含む、請求項10または11に記載の装置。
- 前記複数のRCMセルの各々が、単一レベルセルのメモリデバイスを含む、請求項10乃至13のいずれか1項に記載の装置。
- 前記複数のRCMセルの各々が、マルチレベルセルのメモリデバイスを含む、請求項10乃至13のいずれか1項に記載の装置。
- 前記メモリセル材料が、カルコゲニド材料を含む、請求項10乃至15のいずれか1項に記載の装置。
- 前記複数の電気接点の各々が、易酸化性金属材料を含むアノードである、請求項10乃至16のいずれか1項に記載の装置。
- 前記複数の電気接点の各々が、不活性材料を含むカソードである、請求項10乃至16のいずれか1項に記載の装置。
- 少なくとも1つの抵抗変化メモリ(RCM)セルを備える装置であって、
前記RCMセルは、
第1の面およびこれと対向する第2の面を有するメモリセル材料と、
前記メモリセル材料の前記第1の面に相互に横方向に配置された第1乃至第3の電気接点であって、前記第2の電気接点が前記第1および第3の電気接点の間に位置するように配置された、第1乃至第3の電気接点と、
前記メモリセル材料の前記第2の面に相互に横方向に配置された第4乃至第6の電気接点であって、前記第1乃至第3の電気接点とそれぞれ対を成すように配置された、第4乃至第6の電気接点と、を含み、
前記メモリセル材料の、前記第1および第4の電気接点間、前記第1および第5の電気接点間、前記第2および第4の電気接点間、前記第2および第5の電気接点間、前記第2および第6の電気接点間、前記第3および第5の電気接点間、ならびに前記第3および第6の電気接点間にはそれぞれ導電経路を形成する一方、前記第1および第6の電気接点間、ならびに前記第3および第4の電気接点間には導電経路を形成しないように、構成されている、装置。 - 前記RCMセルが、導電ブリッジ(conductive−bridging)ランダムアクセスメモリ(CBRAM)セルを含む、請求項19に記載の装置。
- 前記RCMセルが、抵抗性ランダムアクセスメモリ(RRAM)セルを含む、請求項19に記載の装置。
- 前記RCMセルが、単一レベルセルのメモリデバイスを含む、請求項19乃至21のいずれか1項に記載の装置。
- 前記RCMセルが、マルチレベルセルのメモリデバイスを含む、請求項19乃至21のいずれか1項に記載の装置。
- 前記メモリセル材料が、カルコゲニド材料を含む、請求項19乃至23のいずれか1項に記載の装置。
- 前記第1乃至第6の電気接点の各々が、易酸化性金属材料を含むアノードである、請求項19乃至24のいずれか1項に記載の装置。
- 前記第1乃至第6の電気接点の各々が、不活性材料を含むカソードである、請求項19乃至24のいずれか1項に記載の装置。
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US8988931B2 (en) | 2015-03-24 |
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