JP2001502848A - 相変化性メモリ材料と誘電材料との混合物から成る複合メモリ材料 - Google Patents
相変化性メモリ材料と誘電材料との混合物から成る複合メモリ材料Info
- Publication number
- JP2001502848A JP2001502848A JP10519794A JP51979498A JP2001502848A JP 2001502848 A JP2001502848 A JP 2001502848A JP 10519794 A JP10519794 A JP 10519794A JP 51979498 A JP51979498 A JP 51979498A JP 2001502848 A JP2001502848 A JP 2001502848A
- Authority
- JP
- Japan
- Prior art keywords
- memory
- composite
- twenty
- phase change
- dielectric material
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
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- 229910001928 zirconium oxide Inorganic materials 0.000 description 1
Classifications
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10N—ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10N70/00—Solid-state devices having no potential barriers, and specially adapted for rectifying, amplifying, oscillating or switching
- H10N70/20—Multistable switching devices, e.g. memristors
- H10N70/231—Multistable switching devices, e.g. memristors based on solid-state phase change, e.g. between amorphous and crystalline phases, Ovshinsky effect
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- H10N80/00—Bulk negative-resistance effect devices
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- G11—INFORMATION STORAGE
- G11C—STATIC STORES
- G11C13/00—Digital stores characterised by the use of storage elements not covered by groups G11C11/00, G11C23/00, or G11C25/00
- G11C13/0002—Digital stores characterised by the use of storage elements not covered by groups G11C11/00, G11C23/00, or G11C25/00 using resistive RAM [RRAM] elements
- G11C13/0004—Digital stores characterised by the use of storage elements not covered by groups G11C11/00, G11C23/00, or G11C25/00 using resistive RAM [RRAM] elements comprising amorphous/crystalline phase transition cells
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10N—ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10N70/00—Solid-state devices having no potential barriers, and specially adapted for rectifying, amplifying, oscillating or switching
- H10N70/011—Manufacture or treatment of multistable switching devices
- H10N70/021—Formation of switching materials, e.g. deposition of layers
- H10N70/026—Formation of switching materials, e.g. deposition of layers by physical vapor deposition, e.g. sputtering
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10N—ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10N70/00—Solid-state devices having no potential barriers, and specially adapted for rectifying, amplifying, oscillating or switching
- H10N70/011—Manufacture or treatment of multistable switching devices
- H10N70/041—Modification of switching materials after formation, e.g. doping
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10N—ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10N70/00—Solid-state devices having no potential barriers, and specially adapted for rectifying, amplifying, oscillating or switching
- H10N70/801—Constructional details of multistable switching devices
- H10N70/821—Device geometry
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10N—ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10N70/00—Solid-state devices having no potential barriers, and specially adapted for rectifying, amplifying, oscillating or switching
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10N—ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10N70/00—Solid-state devices having no potential barriers, and specially adapted for rectifying, amplifying, oscillating or switching
- H10N70/801—Constructional details of multistable switching devices
- H10N70/881—Switching materials
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- H—ELECTRICITY
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- H10N—ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10N70/00—Solid-state devices having no potential barriers, and specially adapted for rectifying, amplifying, oscillating or switching
- H10N70/801—Constructional details of multistable switching devices
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- H10N70/8822—Sulfides, e.g. CuS
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- H—ELECTRICITY
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- H10N—ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10N70/00—Solid-state devices having no potential barriers, and specially adapted for rectifying, amplifying, oscillating or switching
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- H10N70/8828—Tellurides, e.g. GeSbTe
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- H—ELECTRICITY
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- H10N—ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10N70/00—Solid-state devices having no potential barriers, and specially adapted for rectifying, amplifying, oscillating or switching
- H10N70/801—Constructional details of multistable switching devices
- H10N70/881—Switching materials
- H10N70/883—Oxides or nitrides
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- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10N—ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10N70/00—Solid-state devices having no potential barriers, and specially adapted for rectifying, amplifying, oscillating or switching
- H10N70/801—Constructional details of multistable switching devices
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- G11C2213/70—Resistive array aspects
- G11C2213/72—Array wherein the access device being a diode
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Semiconductor Memories (AREA)
Abstract
Description
Claims (1)
- 【特許請求の範囲】 1.活性な相変化性メモリ材料と不活性な誘電材料との混合物から成る複合メ モリ材料。 2.前記相変化性メモリ材料が、Te、Se、Ge、Sb、Bi、Pb、Sn 、As、S、Si、P、O及びそれらの混合物又は合金から成るグループから選 択された一又はそれ以上の元素を含んでいる、請求項1の複合メモリ材料。 3.前記相変化性メモリ材料が、少なくとも一のカルコゲン元素と少なくとも 一の遷移金属元素とを含んでいる、請求項2の複合メモリ材料。 4.前記カルコゲン元素が、Te、Se及びそれらの混合物又は合金から成る グループから選択される、請求項3の複合メモリ材料。 5.前記カルコゲン元素がTeとSeとの混合物である、請求項4の複合メモ リ材料。 6.前記少なくとも一の遷移金属元素が、Cr、Fe、Ni、Nb、Pd、P t及びそれらの混合物又は合金から成るグループから選択される、請求項3の複 合メモリ材料。 7.前記誘電材料が、酸化物、窒化物、酸化窒化物、炭化窒化物、フッ化物、 硫化物、塩化物、炭化物、ホウ化物、リン化物及びそれらの混合物又は合金から 成るグループから選択された一又はそれ以上の材料である、請求項1の複合メモ リ材料。 8.前記誘電材料が有機誘電材料である、請求項1の複合メモリ材料。 9.前記誘電材料の体積百分率が約10%と約90%との間にある、請求項1 の複合メモリ材料。 10.前記誘電材料の体積百分率が約20%と約80%との間にある、請求項 9の複合メモリ材料。 11.前記誘電材料の体積百分率が約40%と約60%との間にある、請求項 10の複合メモリ材料。 12.以下から成る、単一セルメモリ素子。 (a)活性な相変化性材料と不活性な誘電材料との混合物から成って単一セルメ モリ素子を規定している一体体積のメモリ材料。 (b)前記メモリ素子に保存された情報を読み出したり書き込んだりするための 端子を提供する、間をおいて配置された一対のコンタクト。 13.前記相変化性メモリ材料が、Te、Se、Ge、Sb、Bi、Pb、S n、As、S、Si、P、O及びそれらの混合物又は合金から成るグループから 選択された一又はそれ以上の元素を含んでいる、請求項12のメモリ素子。 14.前記相変化性メモリ材料が、少なくとも一のカルコゲン元素と少なくと も一の遷移金属元素とを含む、請求項13のメモリ素子。 15.前記カルコゲン元素がTe、Se及びそれらの混合物又は合金から成る グループより選択される、請求項14のメモリ素子。 16.前記カルコゲン元素がTeとSeとの混合物である、請求項15のメモ リ素子。 17.前記少なくとも一の遷移金属元素が、Cr、Fe、Ni、Nb、Pd、 Pt及びそれらの混合物又は合金から成るグループより選択される、請求項14 のメモリ素子。 18.前記誘電材料が、酸化物、窒化物、フッ化物、硫化物、塩化物、炭化物 、酸化窒化物、炭化窒化物、ホウ化物、リン化物及びそれらの混合物又は合金か ら成るグループから選択された一又はそれ以上の材料である、 請求項12のメモリ素子。 19.前記誘電材料が有機誘電材料である、請求項12のメモリ素子。 20.前記誘電材料の体積百分率が約10%と約90%との間にある、請求項 12のメモリ素子。 21.前記誘電材料の体積百分率が約20%と約80%との間にある、請求項 20のメモリ素子。 22.前記誘電材料の体積百分率が約40%と約60%との間にある、請求項 21のメモリ素子。 23.以下から成る、電気的に動作する、直接上書き可能、マルチビット、単 一セルメモリ素子。 (a)単一セルメモリ素子を規定する一体体積のメモリ材料。 前記メモリ材料は、前記単一セルにマルチビット記録能力を与えるよう、 特定の出発すなわち消去抵抗値への設定を要せず、前記材料の以前の抵抗値に 無関係に、選択された電気入力信号に応答してダイナミックレンジ内の複数の抵 抗値の1つに直接設定されることができる、 電気抵抗値の大きなダイナミックレンジを具備した手 段を構成している。 (b)前記メモリ材料を前記ダイナミックレンジ内の選択された抵抗値に設定す るために、前記電気入力信号を供給する、間をおいて配置された一対のコンタク ト。 前記間をおいて配置されたコンタクトのうち少なくとも一は、第1コンタクト 材料と第2コンタクト材料との混合物であって、第1コンタクト材料は炭素を含 み、かつ第2コンタクト材料は少なくとも一の遷移金属元素を含む。 24.前記第2コンタクト材料が、Ti、V、Cr、Zr、Nb、Mo、Hf 、Ta、W及びそれらの混合物又は合金から成るグループより選択される一又は それ以上の元素を含む、請求項23のメモリ素子。 25.前記第2コンタクト材料がTiとWとを含む、請求項24のメモリ素子 。
Applications Claiming Priority (3)
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US08/739,080 US5825046A (en) | 1996-10-28 | 1996-10-28 | Composite memory material comprising a mixture of phase-change memory material and dielectric material |
US08/739,080 | 1996-10-28 | ||
PCT/US1997/019253 WO1998019350A1 (en) | 1996-10-28 | 1997-10-27 | Composite memory material comprising a mixture of phase-change memory material and dielectric material |
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JP2001502848A true JP2001502848A (ja) | 2001-02-27 |
JP2001502848A5 JP2001502848A5 (ja) | 2012-02-16 |
JP4933687B2 JP4933687B2 (ja) | 2012-05-16 |
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JP51979498A Expired - Lifetime JP4933687B2 (ja) | 1996-10-28 | 1997-10-27 | 相変化性メモリ材料と誘電材料との混合物から成る複合メモリ材料 |
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US (1) | US5825046A (ja) |
EP (1) | EP0947005B1 (ja) |
JP (1) | JP4933687B2 (ja) |
KR (1) | KR20000052840A (ja) |
AU (1) | AU4827197A (ja) |
CA (1) | CA2269856A1 (ja) |
DE (1) | DE69739162D1 (ja) |
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- 1997-10-27 JP JP51979498A patent/JP4933687B2/ja not_active Expired - Lifetime
- 1997-10-27 DE DE69739162T patent/DE69739162D1/de not_active Expired - Lifetime
- 1997-10-27 EP EP97911035A patent/EP0947005B1/en not_active Expired - Lifetime
- 1997-10-27 WO PCT/US1997/019253 patent/WO1998019350A1/en not_active Application Discontinuation
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Also Published As
Publication number | Publication date |
---|---|
AU4827197A (en) | 1998-05-22 |
KR20000052840A (ko) | 2000-08-25 |
CA2269856A1 (en) | 1998-05-07 |
EP0947005A1 (en) | 1999-10-06 |
DE69739162D1 (de) | 2009-01-22 |
WO1998019350A1 (en) | 1998-05-07 |
JP4933687B2 (ja) | 2012-05-16 |
EP0947005A4 (en) | 2006-06-21 |
US5825046A (en) | 1998-10-20 |
EP0947005B1 (en) | 2008-12-10 |
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