JP2015520909A - 順列メモリセル - Google Patents
順列メモリセル Download PDFInfo
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- JP2015520909A JP2015520909A JP2015511609A JP2015511609A JP2015520909A JP 2015520909 A JP2015520909 A JP 2015520909A JP 2015511609 A JP2015511609 A JP 2015511609A JP 2015511609 A JP2015511609 A JP 2015511609A JP 2015520909 A JP2015520909 A JP 2015520909A
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Classifications
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Abstract
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 (25)
- 少なくとも2つの抵抗変化メモリ(RCM)セルと、
前記少なくとも2つのRCMセルの各々に電気的に連結された少なくとも2つの電気接点と、
前記少なくとも2つのRCMセルの各々に連結された前記少なくとも2つの電気接点の対間に配置されたメモリセル材料であって、前記メモリセル材料が、前記少なくとも2つの電気接点間に導電経路を形成することが可能であり、前記メモリセル材料の少なくとも一部分が、前記少なくとも2つのRCMセルの各々に電気的に連結された前記少なくとも2つの電気接点のうちの選択されたものの間の導電経路を交差連結するように配設された、メモリセル材料と、
を備える、装置。 - 前記少なくとも2つのRCMセルが、連続するメモリセル材料を共有する、請求項1に記載の装置。
- 前記少なくとも2つのRCMセルの各々に電気的に連結された前記少なくとも2つの電気接点の各々の前記対が、プログラム動作、消去動作、または読み出し動作のために個々にアクセスされるように構成される、請求項1に記載の装置。
- 前記少なくとも2つのRCMセルの各々に電気的に連結された前記少なくとも2つの電気接点の前記対間に形成される導電経路の数が、前記電気接点の合計数に基づいてほぼ線形に増加する、請求項1に記載の装置。
- プログラミング動作、消去動作、または読み出し動作の順列の数が、導電経路の前記数に基づいてベキ法則関係にほぼ従って増加することになっている、請求項4に記載の装置。
- 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1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1に記載の装置。
- 前記RCMセルの少なくとも一部が、単一レベルセルのメモリデバイスを含む、請求項1に記載の装置。
- 前記RCMセルの少なくとも一部が、マルチレベルセルのメモリデバイスを含む、請求項1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に記載の装置。
- 前記電気接点のうちの少なくとも1つが、易酸化性金属材料を含むアノードである、請求項1に記載の装置。
- 前記電気接点のうちの少なくとも1つが、不活性材料を含むカソードである、請求項1に記載の装置。
- 少なくとも1つの抵抗変化メモリ(RCM)セルと、
前記少なくとも1つのRCMセルに電気的に連結された3つ以上の電気接点であって、互いに対して横方向に配設される、3つ以上の電気接点と、
3つ以上の電気接点の対間に配置されたメモリセル材料であって、前記3つ以上の電気接点の対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。 - 前記メモリセル材料の少なくとも一部分が、前記少なくとも1つのRCMセルに電気的に連結された前記3つ以上の電気接点のうちの選択されたものの間の導電経路を交差連結するように配設されている、請求項13に記載の装置。
- 前記3つ以上の電気接点が、前記RCMセルを動作させる順列の数に起因して、前記少なくとも1つのRCMセルの記憶密度を増加させるように構成される、請求項14に記載の装置。
- 電気デバイスと、
前記電気デバイスに連結された少なくとも3つの電気接点であって、互いに対して横方向に配設され、かつ交差連結されるように構成される、3つの電気接点と、
前記少なくとも3つの電気接点の少なくとも対間に配置されたメモリセル材料と、
を備える、装置。 - 前記メモリセル材料が、前記少なくとも3つの電気接点のうちの選択されたものを交差連結することを許容するように配設される、請求項16に記載の装置。
- 前記電気デバイスが、モノリシックソリッドステートのシフトレジスタである、請求項16に記載の装置。
- メモリデバイスを動作させる方法であって、
少なくとも3つの電気接点を有するメモリデバイスにおいて、
前記メモリデバイスに対して複数の動作を実施するシーケンスを選択することと、
前記メモリデバイスに対して第1の動作を実施するために、前記少なくとも3つの電気接点の第1の対を選択することと、
前記メモリデバイスに対して後続の動作を実施するために、前記少なくとも3つの電気接点のうちの交差連結された後続の対を選択することと、
を含む、方法。 - 前記複数の動作のうちの少なくとも1つが、前記メモリデバイスの抵抗測定を実施することを含む、請求項19に記載の方法。
- 前記シーケンスのうちの選択されたものの最大の数が、ベキ法則関係によってほぼ記述される、請求項19に記載の方法。
- 少なくとも3つの抵抗変化メモリ(RCM)セルと、
前記少なくとも3つのRCMセルの各々に電気的に連結された少なくとも1つの電気接点を含むいくつかの電気接点であって、前記少なくとも3つのRCMセルが、互いに対して横方向に配設される、いくつかの電気接点と、
前記少なくとも3つのRCMセルの各々に電気的に連結された少なくとも1つの電気接点の少なくとも対間に配置されたメモリセル材料であって、前記メモリセル材料が、前記電気接点の前記少なくとも対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。 - 前記メモリセル材料の少なくとも一部分が、前記少なくとも3つのRCMセルの各々に電気的に連結された前記少なくとも1つの電気接点のうちの選択されたものの間の導電経路を交差連結するように配設された、請求項22に記載の装置。
- 前記RCMセルが、六方最密充填アレイに形成される、請求項22に記載の装置。
- 前記RCMセルが、方形のアレイに形成される、請求項22に記載の装置。
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