JP2016131216A - 抵抗変化型素子およびその製造方法 - Google Patents
抵抗変化型素子およびその製造方法 Download PDFInfo
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- JP2016131216A JP2016131216A JP2015005464A JP2015005464A JP2016131216A JP 2016131216 A JP2016131216 A JP 2016131216A JP 2015005464 A JP2015005464 A JP 2015005464A JP 2015005464 A JP2015005464 A JP 2015005464A JP 2016131216 A JP2016131216 A JP 2016131216A
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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 without a potential-jump barrier or surface barrier, 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
- H10N70/8833—Binary metal oxides, e.g. TaOx
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- H10N70/00—Solid-state devices without a potential-jump barrier or surface barrier, and specially adapted for rectifying, amplifying, oscillating or switching
- H10N70/20—Multistable switching devices, e.g. memristors
- H10N70/24—Multistable switching devices, e.g. memristors based on migration or redistribution of ionic species, e.g. anions, vacancies
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C16/00—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes
- C23C16/22—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes characterised by the deposition of inorganic material, other than metallic material
- C23C16/30—Deposition of compounds, mixtures or solid solutions, e.g. borides, carbides, nitrides
- C23C16/40—Oxides
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- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L27/00—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate
- H01L27/02—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having at least one potential-jump barrier or surface barrier; including integrated passive circuit elements with at least one potential-jump barrier or surface barrier
- H01L27/04—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having at least one potential-jump barrier or surface barrier; including integrated passive circuit elements with at least one potential-jump barrier or surface barrier the substrate being a semiconductor body
- H01L27/10—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having at least one potential-jump barrier or surface barrier; including integrated passive circuit elements with at least one potential-jump barrier or surface barrier the substrate being a semiconductor body including a plurality of individual components in a repetitive configuration
- H01L27/105—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having at least one potential-jump barrier or surface barrier; including integrated passive circuit elements with at least one potential-jump barrier or surface barrier the substrate being a semiconductor body including a plurality of individual components in a repetitive configuration including field-effect components
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10B—ELECTRONIC MEMORY DEVICES
- H10B63/00—Resistance change memory devices, e.g. resistive RAM [ReRAM] devices
- H10B63/30—Resistance change memory devices, e.g. resistive RAM [ReRAM] devices comprising selection components having three or more electrodes, e.g. transistors
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10B—ELECTRONIC MEMORY DEVICES
- H10B63/00—Resistance change memory devices, e.g. resistive RAM [ReRAM] devices
- H10B63/80—Arrangements comprising multiple bistable or multi-stable switching components of the same type on a plane parallel to the substrate, e.g. cross-point arrays
- H10B63/84—Arrangements comprising multiple bistable or multi-stable switching components of the same type on a plane parallel to the substrate, e.g. cross-point arrays arranged in a direction perpendicular to the substrate, e.g. 3D cell arrays
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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 without a potential-jump barrier or surface barrier, 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 without a potential-jump barrier or surface barrier, and specially adapted for rectifying, amplifying, oscillating or switching
- H10N70/011—Manufacture or treatment of multistable switching devices
- H10N70/021—Formation of the switching material, e.g. layer deposition
- H10N70/023—Formation of the switching material, e.g. layer deposition by chemical vapor deposition, e.g. MOCVD, ALD
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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 without a potential-jump barrier or surface barrier, and specially adapted for rectifying, amplifying, oscillating or switching
- H10N70/801—Constructional details of multistable switching devices
- H10N70/821—Device geometry
- H10N70/826—Device geometry adapted for essentially vertical current flow, e.g. sandwich or pillar type devices
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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 without a potential-jump barrier or surface barrier, and specially adapted for rectifying, amplifying, oscillating or switching
- H10N70/801—Constructional details of multistable switching devices
- H10N70/821—Device geometry
- H10N70/828—Current flow limiting means within the switching material region, e.g. constrictions
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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
- H10N99/00—Subject matter not provided for in other groups of this subclass
Abstract
Description
ここで、前記島状または粒子状物の平均粒径は、0.1nm以上0.6nm以下であってよい。
また、前記金属酸化物を構成する少なくとも1つの元素の酸化物生成自由エネルギーが、0℃から400℃の温度範囲内の少なくとも一部の範囲内で酸化アルミニウムの酸化物生成自由エネルギーより低いものであってよい。
また、前記金属酸化物は、チタン(Ti)、タンタル(Ta)、ニオビウム(Nb)、ジルコニウム(Zr)、およびハフニウム(Hf)からなる群から選択された少なくとも一つを含んでよい。
本発明の他の側面によれば、前記島状または粒子状物は、前記第1の電極に酸化アルミニウムまたは酸炭化アルミニウムを堆積させるとともに、堆積により当初前記第1の電極上に互いに孤立して形成された酸化アルミニウムまたは酸炭化アルミニウムの領域が連続した膜状に連結される前に堆積を打ち切ることにより形成する、上記何れかの抵抗変化型素子の製造方法が与えられる。
ここで、前記堆積は原子層堆積(ALD)法により行ってよい。
また、前記ALD法による堆積におけるALDサイクルは3サイクル以下であってよい。
また、前記ALD法による堆積はトリメチルアルミニウムを使用して行われてよい。
また、前記ALD法による堆積は0℃以上400℃以下で行われてよい。
また、前記ALD法による堆積は22℃以上300℃以下で行われてよい。
[金属酸化物生成自由エネルギー(金属酸化物膜12中の少なくとも一つの元素)]>[金属酸化物生成自由エネルギー(Al2O3)]
が成立する(つまり、金属酸化物膜12上に酸素欠損が生成される)温度範囲内でフォーミングを行う。
11---下部電極
12---金属酸化物膜
13---非晶質な酸化アルミニウムまたは酸炭化アルミニウム
14---上部電極
15---シリコン基板
16---素子分離
17---トランジスタ
18、22、24---層間絶縁膜
19、23、25---コンタクトプラグ
20---接地線
21---中継配線
26---ビット線
Claims (10)
- 第1の電極と第2の電極との間に設けられた金属酸化物膜を有する抵抗変化型素子であって、
前記第1の電極と前記金属酸化物膜の間に非晶質な酸化アルミニウムまたは酸化炭化アルミニウムの島状または粒子状物が分散されている抵抗変化型素子。 - 前記島状または粒子状物の平均粒径は、0.1nm以上0.6nm以下である、請求項1に記載の抵抗変化型素子。
- 前記金属酸化物を構成する少なくとも1つの元素の酸化物生成自由エネルギーが、0℃から400℃の温度範囲内の少なくとも一部の範囲内で酸化アルミニウムの酸化物生成自由エネルギーより低い、請求項1または2に記載の抵抗変化型素子。
- 前記金属酸化物は、チタン(Ti)、タンタル(Ta)、ニオビウム(Nb)、ジルコニウム(Zr)、およびハフニウム(Hf)からなる群から選択された少なくとも一つを含む、請求項1から3の何れかに記載の抵抗変化型素子。
- 前記島状または粒子状物は、前記第1の電極に酸化アルミニウムまたは酸炭化アルミニウムを堆積させるとともに、堆積により当初前記第1の電極上に互いに孤立して形成された酸化アルミニウムまたは酸炭化アルミニウムの領域が連続した膜状に連結される前に堆積を打ち切ることにより形成する、請求項1から4の何れかに記載の抵抗変化型素子
の製造方法。 - 前記堆積は原子層堆積(ALD)法により行う、請求項5に記載の抵抗変化型素子の製造方法。
- 前記ALD法による堆積におけるALDサイクルは3サイクル以下である、請求項6に記載の抵抗変化型素子の製造方法。
- 前記ALD法による堆積はトリメチルアルミニウムを使用して行われる、請求項6または7に記載の抵抗変化型素子の製造方法。
- 前記ALD法による堆積は0℃以上400℃以下で行われる、請求項8に記載の抵抗変化型素子の製造方法。
- 前記ALD法による堆積は22℃以上300℃以下で行われる、請求項9に記載の抵抗変化型素子の製造方法。
Priority Applications (4)
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JP2015005464A JP6544555B2 (ja) | 2015-01-15 | 2015-01-15 | 抵抗変化型素子の製造方法 |
EP16737382.8A EP3246947B1 (en) | 2015-01-15 | 2016-01-13 | Resistance change element and method for manufacturing same |
PCT/JP2016/050853 WO2016114311A1 (ja) | 2015-01-15 | 2016-01-13 | 抵抗変化型素子およびその製造方法 |
US15/536,150 US10290802B2 (en) | 2015-01-15 | 2016-01-13 | Variable resistance device and method for manufacturing same |
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JP2015005464A JP6544555B2 (ja) | 2015-01-15 | 2015-01-15 | 抵抗変化型素子の製造方法 |
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JP6544555B2 JP6544555B2 (ja) | 2019-07-17 |
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US (1) | US10290802B2 (ja) |
EP (1) | EP3246947B1 (ja) |
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Cited By (2)
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RU2653399C2 (ru) * | 2016-09-15 | 2018-05-08 | Федеральное государственное бюджетное учреждение науки Институт электрофизики Уральского отделения Российской академии наук (ИЭФ УрО РАН) | Способ нанесения покрытия из аморфного оксида алюминия реактивным испарением алюминия в разряде низкого давления |
CN109461812A (zh) * | 2018-09-27 | 2019-03-12 | 西交利物浦大学 | 基于铝氧化物的rram及其制备方法 |
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CN107610733B (zh) * | 2017-08-31 | 2020-05-19 | 华中科技大学 | 一种降低阻变存储器形成电压的电形成方法 |
CN110317061B (zh) * | 2018-03-28 | 2021-06-15 | 山东理工大学 | 一种制备Al4O4C纳米纤维的方法 |
JP2020043240A (ja) | 2018-09-11 | 2020-03-19 | キオクシア株式会社 | 記憶装置 |
CN110676374B (zh) * | 2019-05-22 | 2020-06-09 | 集美大学 | 一种阻变存储器及其制备方法 |
US11527712B2 (en) * | 2020-07-06 | 2022-12-13 | Tetramem Inc. | Low current RRAM-based crossbar array circuits implemented with interface engineering technologies |
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Also Published As
Publication number | Publication date |
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WO2016114311A1 (ja) | 2016-07-21 |
EP3246947B1 (en) | 2020-04-01 |
US10290802B2 (en) | 2019-05-14 |
EP3246947A1 (en) | 2017-11-22 |
EP3246947A4 (en) | 2018-10-31 |
JP6544555B2 (ja) | 2019-07-17 |
US20170346006A1 (en) | 2017-11-30 |
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