JP5960347B2 - フィラメント形成が限局された抵抗型メモリ - Google Patents
フィラメント形成が限局された抵抗型メモリ Download PDFInfo
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- JP5960347B2 JP5960347B2 JP2015511617A JP2015511617A JP5960347B2 JP 5960347 B2 JP5960347 B2 JP 5960347B2 JP 2015511617 A JP2015511617 A JP 2015511617A JP 2015511617 A JP2015511617 A JP 2015511617A JP 5960347 B2 JP5960347 B2 JP 5960347B2
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- 230000015654 memory Effects 0.000 title claims description 168
- 230000015572 biosynthetic process Effects 0.000 title claims description 13
- 239000000463 material Substances 0.000 claims description 214
- 239000002210 silicon-based material Substances 0.000 claims description 83
- 238000000034 method Methods 0.000 claims description 48
- 150000002500 ions Chemical class 0.000 claims description 40
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 37
- 229910044991 metal oxide Inorganic materials 0.000 claims description 29
- 150000004706 metal oxides Chemical class 0.000 claims description 29
- 239000000377 silicon dioxide Substances 0.000 claims description 15
- 235000012239 silicon dioxide Nutrition 0.000 claims description 15
- 239000007769 metal material Substances 0.000 claims description 14
- QPLDLSVMHZLSFG-UHFFFAOYSA-N Copper oxide Chemical compound [Cu]=O QPLDLSVMHZLSFG-UHFFFAOYSA-N 0.000 claims description 3
- 239000005751 Copper oxide Substances 0.000 claims description 2
- 229910052581 Si3N4 Inorganic materials 0.000 claims description 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 2
- 229910000431 copper oxide Inorganic materials 0.000 claims description 2
- 229910052710 silicon Inorganic materials 0.000 claims description 2
- 239000010703 silicon Substances 0.000 claims description 2
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 claims description 2
- 229910052814 silicon oxide Inorganic materials 0.000 claims 7
- 239000007772 electrode material Substances 0.000 claims 2
- 230000001590 oxidative effect Effects 0.000 claims 1
- 238000005530 etching Methods 0.000 description 7
- 229910052751 metal Inorganic materials 0.000 description 7
- 239000002184 metal Substances 0.000 description 7
- -1 Li 2 O Chemical class 0.000 description 5
- 238000000231 atomic layer deposition Methods 0.000 description 4
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 4
- 229910002531 CuTe Inorganic materials 0.000 description 3
- 238000005229 chemical vapour deposition Methods 0.000 description 3
- 239000010949 copper Substances 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 229910004298 SiO 2 Inorganic materials 0.000 description 2
- MCMNRKCIXSYSNV-UHFFFAOYSA-N ZrO2 Inorganic materials O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 150000002739 metals Chemical class 0.000 description 2
- RVTZCBVAJQQJTK-UHFFFAOYSA-N oxygen(2-);zirconium(4+) Chemical compound [O-2].[O-2].[Zr+4] RVTZCBVAJQQJTK-UHFFFAOYSA-N 0.000 description 2
- 229910052697 platinum Inorganic materials 0.000 description 2
- 239000004065 semiconductor Substances 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 2
- 229910052721 tungsten Inorganic materials 0.000 description 2
- 239000010937 tungsten Substances 0.000 description 2
- HZNVUJQVZSTENZ-UHFFFAOYSA-N 2,3-dichloro-5,6-dicyano-1,4-benzoquinone Chemical compound ClC1=C(Cl)C(=O)C(C#N)=C(C#N)C1=O HZNVUJQVZSTENZ-UHFFFAOYSA-N 0.000 description 1
- IICCLYANAQEHCI-UHFFFAOYSA-N 4,5,6,7-tetrachloro-3',6'-dihydroxy-2',4',5',7'-tetraiodospiro[2-benzofuran-3,9'-xanthene]-1-one Chemical compound O1C(=O)C(C(=C(Cl)C(Cl)=C2Cl)Cl)=C2C21C1=CC(I)=C(O)C(I)=C1OC1=C(I)C(O)=C(I)C=C21 IICCLYANAQEHCI-UHFFFAOYSA-N 0.000 description 1
- SNLFYGIUTYKKOE-UHFFFAOYSA-N 4-n,4-n-bis(4-aminophenyl)benzene-1,4-diamine Chemical compound C1=CC(N)=CC=C1N(C=1C=CC(N)=CC=1)C1=CC=C(N)C=C1 SNLFYGIUTYKKOE-UHFFFAOYSA-N 0.000 description 1
- 229910018072 Al 2 O 3 Inorganic materials 0.000 description 1
- 229910018068 Li 2 O Inorganic materials 0.000 description 1
- 229910002367 SrTiO Inorganic materials 0.000 description 1
- 229910000272 alkali metal oxide Inorganic materials 0.000 description 1
- 230000006399 behavior Effects 0.000 description 1
- 229910052792 caesium Inorganic materials 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 239000003792 electrolyte Substances 0.000 description 1
- GNBHRKFJIUUOQI-UHFFFAOYSA-N fluorescein Chemical compound O1C(=O)C2=CC=CC=C2C21C1=CC=C(O)C=C1OC1=CC(O)=CC=C21 GNBHRKFJIUUOQI-UHFFFAOYSA-N 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 229940075613 gadolinium oxide Drugs 0.000 description 1
- 229910001938 gadolinium oxide Inorganic materials 0.000 description 1
- CMIHHWBVHJVIGI-UHFFFAOYSA-N gadolinium(iii) oxide Chemical compound [O-2].[O-2].[O-2].[Gd+3].[Gd+3] CMIHHWBVHJVIGI-UHFFFAOYSA-N 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 238000000059 patterning Methods 0.000 description 1
- 238000000206 photolithography Methods 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 229940081623 rose bengal Drugs 0.000 description 1
- 229930187593 rose bengal Natural products 0.000 description 1
- STRXNPAVPKGJQR-UHFFFAOYSA-N rose bengal A Natural products O1C(=O)C(C(=CC=C2Cl)Cl)=C2C21C1=CC(I)=C(O)C(I)=C1OC1=C(I)C(O)=C(I)C=C21 STRXNPAVPKGJQR-UHFFFAOYSA-N 0.000 description 1
- 229910052701 rubidium Inorganic materials 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- FSJWWSXPIWGYKC-UHFFFAOYSA-M silver;silver;sulfanide Chemical compound [SH-].[Ag].[Ag+] FSJWWSXPIWGYKC-UHFFFAOYSA-M 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- QZCHKAUWIRYEGK-UHFFFAOYSA-N tellanylidenecopper Chemical compound [Te]=[Cu] QZCHKAUWIRYEGK-UHFFFAOYSA-N 0.000 description 1
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Description
本明細書において、フィラメント形成が限局された抵抗型メモリを説明した。1つ以上の方法の実施形態は、シリコン材料、および前記シリコン材料上に酸化物材料を有する積層体に、開口部を形成する工程と、前記開口部内に、前記シリコン材料に隣接させて酸化物材料を形成する工程とを含み、前記開口部内に形成された前記酸化物材料は、抵抗型メモリセル内でのフィラメント形成を、前記開口部内に形成された前記酸化物材料に囲まれた領域に限局する。
Claims (16)
- シリコン材料、および前記シリコン材料上に第1酸化物材料を有する積層体に、開口部を形成する工程と、
前記開口部内に、前記シリコン材料に隣接させて第2酸化物材料を形成する工程と、
前記シリコン材料の間で前記シリコン材料に隣接する前記第2酸化物材料に囲まれた領域にイオン源材料を形成する工程と、
を含み、
前記開口部内に形成された前記第2酸化物材料は、抵抗型メモリセル内でのフィラメント形成を、前記開口部内に形成された前記第2酸化物材料に囲まれた領域に限局する、
抵抗型メモリセルを処理する方法。 - シリコン材料、および前記シリコン材料上に第1酸化物材料を有する積層体に、開口部を形成する工程と、
前記開口部内に、前記シリコン材料に隣接させて第2酸化物材料を形成する工程と、
を含み、
前記開口部内に前記シリコン材料に隣接させて前記第2酸化物材料を形成する工程は、
前記開口部内に、前記シリコン材料に隣接させて、選択的に金属材料を形成する工程と、
前記金属材料を酸化させて金属酸化物材料を形成する工程と、
をさらに含み、
前記開口部内に形成された前記金属酸化物材料は、抵抗型メモリセル内でのフィラメント形成を、前記開口部内に形成された前記金属酸化物材料に囲まれた領域に限局する、
抵抗型メモリセルを処理する方法。 - 前記開口部内に、前記金属酸化物材料および前記第1酸化物材料に隣接させて、イオン源材料を形成する工程を含む、請求項2に記載の方法。
- 前記開口部内に、前記金属酸化物材料および前記第1酸化物材料に隣接させて、抵抗型メモリ材料を形成する工程と、
前記開口部内に、前記抵抗型メモリ材料に隣接させて、また、前記開口部内に形成された前記金属酸化物材料に囲まれた領域内に、イオン源材料を形成する工程と
を含む、請求項2に記載の方法。 - 前記開口部内に、前記シリコン材料に隣接させて前記金属材料を選択的に形成することが、前記金属材料が前記開口部内の第1酸化物材料に隣接して形成されないように、前記金属材料を形成することを含む、請求項2〜4のいずれか1項に記載の方法。
- シリコン材料、および前記シリコン材料上に第1酸化物材料を有する積層体に、開口部を形成する工程と、
前記開口部内に、前記シリコン材料に隣接させて第2酸化物材料を形成する工程と、
を含み、
前記開口部内に、前記シリコン材料に隣接させて前記第2酸化物材料を形成する工程は、前記開口部に隣接する前記シリコン材料を選択的に酸化して、前記シリコン材料に隣接する酸化シリコン材料を形成する工程と、
を含み、
前記開口部内に形成された前記酸化シリコン材料は、抵抗型メモリセル内でのフィラメント形成を、前記開口部内に形成された前記酸化シリコン材料に囲まれた領域に限局する、
抵抗型メモリセルを処理する方法。 - 前記開口部内に、前記酸化シリコン材料および前記第1酸化物材料に隣接させて、イオン源材料を形成する工程を含む、請求項6に記載の方法。
- 前記開口部内に、前記酸化シリコン材料および前記第1酸化物材料に隣接させて、抵抗型メモリ材料を形成する工程と、
前記開口部内に、前記抵抗型メモリ材料に隣接させて、かつ、前記開口部内に形成された前記酸化シリコン材料に囲まれた領域内に、イオン源材料を形成する工程
を含む、請求項6に記載の方法。 - 前記積層体は前記シリコン材料の下に抵抗型メモリ材料をさらに有し、前記イオン源材料は前記酸化シリコン材料で囲まれた前記開口部を介して前記抵抗型メモリ材料に接するように形成される、請求項7に記載の方法。
- シリコン材料および前記シリコン材料上に第1酸化物材料を有する垂直積層体と、
前記シリコン材料の間で前記シリコン材料に隣接する第2酸化物材料であって、抵抗型メモリセル内でのフィラメント形成を、前記シリコン材料の間で前記シリコン材料に隣接する前記第2酸化物材料に囲まれた領域に限局する、前記シリコン材料の間で前記シリコン材料に隣接する前記第2酸化物材料と、
前記シリコン材料の間で前記シリコン材料に隣接する前記第2酸化物材料に囲まれた領域内のイオン源材料と
を備える、抵抗型メモリセル。 - 前記垂直積層体は、前記シリコン材料の間で前記シリコン材料に隣接する前記第2酸化物材料に隣接する抵抗型メモリ材料であって、前記シリコン材料の間で前記シリコン材料に隣接する前記第2酸化物材料に囲まれた領域内の前記イオン源材料に隣接する前記抵抗型メモリ材料を備える、請求項10に記載の抵抗型メモリセル。
- 前記垂直積層体は、前記シリコン材料の下に位置する電極材料をさらに備え、前記第2酸化物材料で囲まれた領域内の前記抵抗型メモリ材料は、前記電極材料の上面の一部に接している、請求項11に記載の抵抗型メモリセル。
- 前記垂直積層体は、前記シリコン材料の下に位置する抵抗型メモリ材料をさらに備え、前記シリコン材料に隣接する前記第2酸化物材料に囲まれた領域内のイオン源材料は、前記抵抗型メモリ材料の上面の一部に接している、請求項10に記載の抵抗型メモリセル。
- 前記シリコン材料が窒化シリコンであり、
前記シリコン材料の間で前記シリコン材料に隣接する前記第2酸化物材料が、酸化銅である請求項10〜13のいずれか1項に記載の抵抗型メモリセル。 - 前記シリコン材料がシリコンであり、
前記シリコン材料の間で前記シリコン材料に隣接する前記第2酸化物材料が、二酸化シリコンである、
請求項10〜13のいずれか1項に記載の抵抗型メモリセル。 - 前記シリコン材料の間で前記シリコン材料に隣接する前記第2酸化物材料は、環状の第2酸化物材料である、請求項10〜15のいずれか1項に記載の抵抗型メモリセル。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US13/465,166 | 2012-05-07 | ||
US13/465,166 US8853713B2 (en) | 2012-05-07 | 2012-05-07 | Resistive memory having confined filament formation |
PCT/US2013/039926 WO2013169758A1 (en) | 2012-05-07 | 2013-05-07 | Resistive memory having confined filament formation |
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JP2015519750A JP2015519750A (ja) | 2015-07-09 |
JP5960347B2 true JP5960347B2 (ja) | 2016-08-02 |
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EP2847790A4 (en) | 2016-01-13 |
JP2015519750A (ja) | 2015-07-09 |
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US20160322564A1 (en) | 2016-11-03 |
TWI521646B (zh) | 2016-02-11 |
EP2847790B1 (en) | 2018-12-19 |
US20130292626A1 (en) | 2013-11-07 |
EP2847790A1 (en) | 2015-03-18 |
US20150021541A1 (en) | 2015-01-22 |
US8853713B2 (en) | 2014-10-07 |
KR20150016282A (ko) | 2015-02-11 |
CN107195778B (zh) | 2020-05-12 |
US9722178B2 (en) | 2017-08-01 |
TW201407718A (zh) | 2014-02-16 |
CN104303286B (zh) | 2017-06-09 |
US9406880B2 (en) | 2016-08-02 |
CN107195778A (zh) | 2017-09-22 |
US10153431B2 (en) | 2018-12-11 |
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