JP2006140489A - 一つの抵抗体及び一つのダイオードを有する不揮発性メモリ素子及び不揮発性メモリ素子アレイ - Google Patents
一つの抵抗体及び一つのダイオードを有する不揮発性メモリ素子及び不揮発性メモリ素子アレイ Download PDFInfo
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- 229910010413 TiO 2 Inorganic materials 0.000 claims description 10
- 238000013500 data storage Methods 0.000 claims description 7
- 239000000463 material Substances 0.000 claims description 5
- 239000004065 semiconductor Substances 0.000 abstract description 15
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- 238000010586 diagram Methods 0.000 description 11
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- 230000007423 decrease Effects 0.000 description 2
- 238000005530 etching Methods 0.000 description 2
- 238000011065 in-situ storage Methods 0.000 description 2
- 230000010354 integration Effects 0.000 description 2
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 1
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- 239000007772 electrode material Substances 0.000 description 1
- 230000005283 ground state Effects 0.000 description 1
- 230000005415 magnetization Effects 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 230000010287 polarization Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 238000004544 sputter deposition Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 229910052723 transition metal Inorganic materials 0.000 description 1
- 150000003624 transition metals Chemical group 0.000 description 1
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Abstract
【解決手段】基板10と、基板10上に形成された下部電極11と、下部電極11上に形成された第1抵抗層12と、第1抵抗層12上に形成された第2抵抗層13と、第2抵抗層13上に形成された第1酸化層14と、第1酸化層14上に形成された第2酸化層15と、第2酸化層15上に形成された上部電極16と、を備える揮発性メモリ素子である。
【選択図】図1A
Description
第一に、不揮発性メモリの単位セル構造が1D−1Rの連続積層構造であって、それ自体として非常に簡単であるだけでなく、それをアレイセル構造に形成させた場合の構造も非常に簡単に実現することも可能である。
11 下部電極
12 第1抵抗層
13 第2抵抗層
14 p型酸化層
15 n型酸化層
16 上部電極
Claims (12)
- 基板と、
前記基板上に形成された下部電極と、
前記下部電極上に形成された抵抗構造体と、
前記抵抗構造体上に形成されたダイオード構造体と、
前記ダイオード構造体上に形成された上部電極と、
を備えることを特徴とする一つの抵抗体及び一つのダイオードを有する不揮発性メモリ素子。 - 前記抵抗構造体は、
前記下部電極上に形成されたバッファ層と、
前記バッファ層上に形成されたデータ保存層と、
を備えることを特徴とする請求項1に記載の一つの抵抗体及び一つのダイオードを有する不揮発性メモリ素子。 - 前記抵抗構造体は、NiO、TiO2、HfO、ZrO、ZnO、WO3、CoOまたはNb2O5のうち少なくとも何れか一つの物質を含んで形成されたことを特徴とする請求項1に記載の一つの抵抗体及び一つのダイオードを有する不揮発性メモリ素子。
- 前記ダイオード構造体は、
前記抵抗構造体上に形成された第1酸化層と、
前記第1酸化層上に形成された第2酸化層と、
を備えることを特徴とする請求項1に記載の一つの抵抗体及び一つのダイオードを有する不揮発性メモリ素子。 - 前記第1酸化層は、p型酸化物で形成され、前記第2酸化層は、n型酸化物で形成されたことを特徴とする請求項4に記載の一つの抵抗体及び一つのダイオードを有する不揮発性メモリ素子。
- 前記p型酸化物または前記n型酸化物は、NiO、TiO2、HfO、ZrO、ZnO、WO3、CoOまたはNb2O5のうち少なくとも何れか一つの物質を含んで形成されたことを特徴とする請求項5に記載の一つの抵抗体及び一つのダイオードを有する不揮発性メモリ素子。
- 相互平行した間隔をもって配列された2以上のビットラインと、
相互平行した間隔をもって、前記ビットラインと交差する方向に形成された2以上のワードラインと、
前記ビットライン及び前記ワードラインの交差する位置であり、かつ前記ビットライン上に形成された抵抗構造体と、
前記抵抗構造体及び前記ワードラインと接触するように前記抵抗構造体上に形成されたダイオード構造体と、
を備えることを特徴とする一つの抵抗体及び一つのダイオードを有する不揮発性メモリ素子アレイ。 - 前記抵抗構造体は、
前記ビットライン上に形成されたバッファ層と、
前記バッファ層上に形成されたデータ保存層と、
を備えることを特徴とする請求項7に記載の一つの抵抗体及び一つのダイオードを有する不揮発性メモリ素子アレイ。 - 前記抵抗構造体は、NiO、TiO2、HfO、ZrO、ZnO、WO3、CoOまたはNb2O5のうち少なくとも何れか一つの物質を含んで形成されたことを特徴とする請求項7に記載の一つの抵抗体及び一つのダイオードを有する不揮発性メモリ素子アレイ。
- 前記ダイオード構造体は、
前記抵抗構造体上に形成された第1酸化層と、
前記第1酸化層上に形成された第2酸化層と、
を備えることを特徴とする請求項7に記載の一つの抵抗体及び一つのダイオードを有する不揮発性メモリ素子アレイ。 - 前記第1酸化層は、p型酸化物で形成され、前記第2酸化層は、n型酸化物で形成されたことを特徴とする請求項10に記載の一つの抵抗体及び一つのダイオードを有する不揮発性メモリ素子アレイ。
- 前記p型酸化物または前記n型酸化物は、NiO、TiO2、HfO、ZrO、ZnO、WO3、CoOまたはNb2O5のうち少なくとも何れか一つの物質を含んで形成されたことを特徴とする請求項11に記載の一つの抵抗体及び一つのダイオードを有する不揮発性メモリ素子アレイ。
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KR1020040091497A KR100657911B1 (ko) | 2004-11-10 | 2004-11-10 | 한 개의 저항체와 한 개의 다이오드를 지닌 비휘발성메모리 소자 |
KR10-2004-0091497 | 2004-11-10 |
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Also Published As
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US7935953B2 (en) | 2011-05-03 |
KR100657911B1 (ko) | 2006-12-14 |
EP1657753B1 (en) | 2011-06-22 |
JP4981304B2 (ja) | 2012-07-18 |
US20060098472A1 (en) | 2006-05-11 |
US7602042B2 (en) | 2009-10-13 |
KR20060042734A (ko) | 2006-05-15 |
US20080121865A1 (en) | 2008-05-29 |
EP1657753A2 (en) | 2006-05-17 |
EP1657753A3 (en) | 2008-12-10 |
CN100593242C (zh) | 2010-03-03 |
CN1790726A (zh) | 2006-06-21 |
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