JP2015521382A - スイッチングデバイスの構造および方法 - Google Patents
スイッチングデバイスの構造および方法 Download PDFInfo
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- NLZUEZXRPGMBCV-UHFFFAOYSA-N Butylhydroxytoluene Chemical compound CC1=CC(C(C)(C)C)=C(O)C(C(C)(C)C)=C1 NLZUEZXRPGMBCV-UHFFFAOYSA-N 0.000 description 1
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Abstract
Description
Claims (26)
- スイッチングデバイスであって、
第1および第2の電極の間に形成される材料を備える垂直積層体と、
前記垂直積層体に結合され、かつ、そこに印加される電圧を受信して、前記第1および前記第2の電極の間の前記材料における導電経路の形成状態を制御するように構成される第3の電極と
を備え、
前記導電経路の前記形成状態が、オン状態とオフ状態との間で切替可能である、スイッチングデバイス。 - 前記第2の電極が、そこに印加される電圧を、前記第3の電極に印加される前記電圧と共に受信して、前記形成状態を制御するように構成される、請求項1に記載のデバイス。
- 前記第1および第3の電極の間の距離が、前記第1および第2の電極の間の距離よりも短い、請求項1に記載のデバイス。
- 前記第3の電極が前記第2の電極に隣接する、請求項1に記載のデバイス。
- 前記第3の電極が、前記第2の電極に隣接し、かつ前記第2の電極を囲繞する、請求項1に記載のデバイス。
- 前記第3の電極が、前記1および前記第2の電極の間かつ前記材料の一部分の内部に形成される、請求項1に記載のデバイス。
- 前記第3の電極が、前記1および前記第2の電極の間に形成され、かつ前記材料の一部分を囲繞する、請求項1に記載のデバイス。
- 前記第2の電極がピラー上に形成される、請求項1〜7のいずれか1項に記載のデバイス。
- スイッチングデバイスであって、
第1および第2の電極の間に形成される可変抵抗材料を備える垂直積層体であって、前記第2の電極が、ピラー上に形成される、垂直積層体と、
前記垂直積層体に結合され、かつ、そこに印加される電圧を受信して、前記第1および前記第2の電極の間の前記可変抵抗材料における導電経路の形成状態を制御するように構成される第3の電極と
を備え、
前記導電経路の前記形成状態が、オン状態とオフ状態との間で切替可能である、スイッチングデバイス。 - 前記第3の電極が導電線に結合される、請求項9に記載のデバイス。
- 前記第1の電極が導電線に結合される、請求項9に記載のデバイス。
- 前記デバイスがナノイオニクススイッチングデバイスである、請求項9に記載のデバイス。
- 前記デバイスがCMOSデバイスである、請求項9に記載のデバイス。
- 前記第1の電極がドレイン電極である、請求項9〜13のいずれか1項に記載のデバイス。
- 前記第2の電極がソース電極である、請求項9〜13のいずれか1項に記載のデバイス。
- 前記第3の電極がゲート電極である、請求項9〜13のいずれか1項に記載のデバイス。
- 前記可変抵抗材料が、抵抗ランダムアクセスメモリ材料である、請求項9〜13のいずれか1項に記載のデバイス。
- 前記可変抵抗材料が遷移金属酸化物材料を含む、請求項9〜13のいずれか1項に記載のデバイス。
- 前記可変抵抗材料が金属合金材料を含む、請求項9に記載のデバイス。
- メモリセルであって、
記憶素子と、
前記記憶素子と直列に結合されるスイッチングデバイスであって、前記スイッチングデバイスが、
第1および第2の電極の間に形成される材料を備える垂直積層体と、
前記垂直積層体に結合され、かつ、そこに印加される電圧を受信して、前記第1および前記第2の電極の間の前記材料における導電経路の形成状態を制御するように構成される第3の電極と
を備え、
前記導電経路の前記形成状態が、オン状態とオフ状態との間で切替可能である、スイッチングデバイスとを備えるメモリセル。 - 前記記憶素子が、一対の電極の間に記憶材料を備える二電極の可変抵抗記憶素子である、請求項20に記載のメモリセル。
- 前記スイッチングデバイスが、前記メモリセルのための選択デバイスとしての機能を果たす、請求項20〜21のいずれか1項に記載のメモリセル。
- スイッチングデバイスの動作方法であって、
垂直積層体のゲート電極に第1の電圧を印加するステップであって、前記垂直積層体が、ソース電極とドレイン電極との間に形成される材料を備える、第1の電圧を印加するステップと、
導電経路の形成状態を制御するために、前記ソース電極と前記ドレイン電極との間に第2の電圧を印加するステップとを備え、
前記第1および第2の電圧の印加が、前記スイッチングデバイスをイオン移動によりプログラミングさせる、スイッチングデバイスの動作方法。 - 導電経路の形成方法であって、
第1の電極と、第2の電極と、第3の電極と、前記第1および第2の電極の間の可変抵抗材料とを備える垂直積層体を形成するステップと、
第1の電圧を前記第1の電極に印加するステップと、
第2の電圧を前記第2の電極に印加するステップであって、前記第2の電圧が前記第1の電圧よりも大きい、第2の電圧を前記第2の電極に印加するステップとを備え、
前記第1および第2の電圧の印加が、前記第1および第3の電極の間にイオン移動により導電経路を形成させる、導電経路の形成方法。 - 前記第1および第3の電極の間の累積電界を制御することによって前記導電経路を制御するステップをさらに備える、請求項24に記載の方法。
- 前記第1の電極がソース電極を含み、前記第2の電極がゲート電極を含み、前記第3の電極がドレイン電極を含む、請求項24〜25のいずれか1項に記載の方法。
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