JP6230203B2 - 抵抗変化素子及びその製造方法 - Google Patents
抵抗変化素子及びその製造方法 Download PDFInfo
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- 230000008859 change Effects 0.000 title claims description 34
- 238000004519 manufacturing process Methods 0.000 title claims description 13
- 229910044991 metal oxide Inorganic materials 0.000 claims description 73
- 150000004706 metal oxides Chemical class 0.000 claims description 73
- 239000004065 semiconductor Substances 0.000 claims description 35
- 238000004544 sputter deposition Methods 0.000 claims description 18
- 239000000758 substrate Substances 0.000 claims description 11
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 9
- 238000001552 radio frequency sputter deposition Methods 0.000 claims description 9
- 229910052799 carbon Inorganic materials 0.000 claims description 5
- 239000010410 layer Substances 0.000 description 190
- 239000001301 oxygen Substances 0.000 description 37
- 229910052760 oxygen Inorganic materials 0.000 description 37
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 35
- 239000010408 film Substances 0.000 description 22
- 238000000034 method Methods 0.000 description 20
- 239000000463 material Substances 0.000 description 17
- 239000003575 carbonaceous material Substances 0.000 description 16
- NRTOMJZYCJJWKI-UHFFFAOYSA-N Titanium nitride Chemical compound [Ti]#N NRTOMJZYCJJWKI-UHFFFAOYSA-N 0.000 description 11
- 229910000510 noble metal Inorganic materials 0.000 description 11
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 11
- BPUBBGLMJRNUCC-UHFFFAOYSA-N oxygen(2-);tantalum(5+) Chemical compound [O-2].[O-2].[O-2].[O-2].[O-2].[Ta+5].[Ta+5] BPUBBGLMJRNUCC-UHFFFAOYSA-N 0.000 description 8
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 7
- 229910001936 tantalum oxide Inorganic materials 0.000 description 7
- 239000000203 mixture Substances 0.000 description 6
- 238000005229 chemical vapour deposition Methods 0.000 description 5
- 238000000605 extraction Methods 0.000 description 5
- 230000035699 permeability Effects 0.000 description 5
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 4
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 4
- 238000000231 atomic layer deposition Methods 0.000 description 4
- 239000007772 electrode material Substances 0.000 description 4
- 229910002804 graphite Inorganic materials 0.000 description 4
- 239000010439 graphite Substances 0.000 description 4
- 229910052757 nitrogen Inorganic materials 0.000 description 4
- 230000003647 oxidation Effects 0.000 description 4
- 238000007254 oxidation reaction Methods 0.000 description 4
- 238000005546 reactive sputtering Methods 0.000 description 4
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 238000001771 vacuum deposition Methods 0.000 description 3
- QPLDLSVMHZLSFG-UHFFFAOYSA-N Copper oxide Chemical compound [Cu]=O QPLDLSVMHZLSFG-UHFFFAOYSA-N 0.000 description 2
- 238000000560 X-ray reflectometry Methods 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 2
- 125000004432 carbon atom Chemical group C* 0.000 description 2
- 239000002131 composite material Substances 0.000 description 2
- 229910003460 diamond Inorganic materials 0.000 description 2
- 239000010432 diamond Substances 0.000 description 2
- 238000005530 etching Methods 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- AMWRITDGCCNYAT-UHFFFAOYSA-L hydroxy(oxo)manganese;manganese Chemical compound [Mn].O[Mn]=O.O[Mn]=O AMWRITDGCCNYAT-UHFFFAOYSA-L 0.000 description 2
- 238000001459 lithography Methods 0.000 description 2
- 229910052748 manganese Inorganic materials 0.000 description 2
- 239000011572 manganese Substances 0.000 description 2
- 239000007769 metal material Substances 0.000 description 2
- -1 oxygen ions Chemical class 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 239000010409 thin film Substances 0.000 description 2
- 239000010936 titanium Substances 0.000 description 2
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 2
- 239000011787 zinc oxide Substances 0.000 description 2
- 239000005751 Copper oxide Substances 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 229910002367 SrTiO Inorganic materials 0.000 description 1
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 1
- XHCLAFWTIXFWPH-UHFFFAOYSA-N [O-2].[O-2].[O-2].[O-2].[O-2].[V+5].[V+5] Chemical compound [O-2].[O-2].[O-2].[O-2].[O-2].[V+5].[V+5] XHCLAFWTIXFWPH-UHFFFAOYSA-N 0.000 description 1
- 239000012300 argon atmosphere Substances 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 229910002056 binary alloy Inorganic materials 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 229910000428 cobalt oxide Inorganic materials 0.000 description 1
- IVMYJDGYRUAWML-UHFFFAOYSA-N cobalt(ii) oxide Chemical compound [Co]=O IVMYJDGYRUAWML-UHFFFAOYSA-N 0.000 description 1
- 229910000431 copper oxide Inorganic materials 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001312 dry etching Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000284 extract Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 229910000449 hafnium oxide Inorganic materials 0.000 description 1
- WIHZLLGSGQNAGK-UHFFFAOYSA-N hafnium(4+);oxygen(2-) Chemical compound [O-2].[O-2].[Hf+4] WIHZLLGSGQNAGK-UHFFFAOYSA-N 0.000 description 1
- 239000011229 interlayer Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910000480 nickel oxide Inorganic materials 0.000 description 1
- 239000012299 nitrogen atmosphere Substances 0.000 description 1
- QGLKJKCYBOYXKC-UHFFFAOYSA-N nonaoxidotritungsten Chemical compound O=[W]1(=O)O[W](=O)(=O)O[W](=O)(=O)O1 QGLKJKCYBOYXKC-UHFFFAOYSA-N 0.000 description 1
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 1
- GNRSAWUEBMWBQH-UHFFFAOYSA-N oxonickel Chemical compound [Ni]=O GNRSAWUEBMWBQH-UHFFFAOYSA-N 0.000 description 1
- RVTZCBVAJQQJTK-UHFFFAOYSA-N oxygen(2-);zirconium(4+) Chemical compound [O-2].[O-2].[Zr+4] RVTZCBVAJQQJTK-UHFFFAOYSA-N 0.000 description 1
- 238000000059 patterning Methods 0.000 description 1
- 229910052697 platinum Inorganic materials 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- LIVNPJMFVYWSIS-UHFFFAOYSA-N silicon monoxide Chemical compound [Si-]#[O+] LIVNPJMFVYWSIS-UHFFFAOYSA-N 0.000 description 1
- 229910052814 silicon oxide Inorganic materials 0.000 description 1
- XOLBLPGZBRYERU-UHFFFAOYSA-N tin dioxide Chemical compound O=[Sn]=O XOLBLPGZBRYERU-UHFFFAOYSA-N 0.000 description 1
- 229910001887 tin oxide Inorganic materials 0.000 description 1
- 229910001930 tungsten oxide Inorganic materials 0.000 description 1
- 229910001935 vanadium oxide Inorganic materials 0.000 description 1
- 238000001039 wet etching Methods 0.000 description 1
- 229910001928 zirconium oxide Inorganic materials 0.000 description 1
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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
-
- 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
-
- 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
-
- 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
- H10N70/24—Multistable switching devices, e.g. memristors based on migration or redistribution of ionic species, e.g. anions, vacancies
-
- 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
- H10N70/841—Electrodes
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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
- H10N70/883—Oxides or nitrides
- H10N70/8833—Binary metal oxides, e.g. TaOx
-
- 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
- H10N70/884—Switching materials based on at least one element of group IIIA, IVA or VA, e.g. elemental or compound semiconductors
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- Manufacturing & Machinery (AREA)
- Semiconductor Memories (AREA)
- Electrodes Of Semiconductors (AREA)
Description
上記第2の電極層は、炭素材料で形成される。
上記酸化物半導体層は、第1の金属酸化物層と、第2の金属酸化物層とを有する。上記第1の金属酸化物層は、上記第1の電極層と上記第2の電極層との間に形成され、第1の抵抗率を有する。上記第2の金属酸化物層は、上記第1の金属酸化物層と上記第2の電極層との間に形成され、上記第1の抵抗率とは異なる第2の抵抗率を有する。
上記第2の電極層は、炭素材料で形成される。
上記酸化物半導体層は、第1の金属酸化物層と、第2の金属酸化物層とを有する。上記第1の金属酸化物層は、上記第1の電極層と上記第2の電極層との間に形成され、第1の抵抗率を有する。上記第2の金属酸化物層は、上記第1の金属酸化物層と上記第2の電極層との間に形成され、上記第1の抵抗率とは異なる第2の抵抗率を有する。
上記第1の電極層の上に、第1の抵抗率を有する第1の金属酸化物層が形成される。
上記第1の金属酸化物層の上に、上記第1の抵抗率とは異なる第2の抵抗率を有する第2の金属酸化物層が形成される。
上記第2の金属酸化物層の上に、DLCで構成された第2の電極層が、RFスパッタリング又はパルスDCスパッタリングによって形成される。
図1は、本発明の一実施形態に係る抵抗変化素子の構成を示す概略断面図である。本実施形態の抵抗変化素子1は、基板2と、下部電極層3(第1の電極層)と、酸化物半導体層4と、上部電極層5(第2の電極層)とを有する。
ガス(Ar)流量:50[sccm]
RFパワー:2000[W]
RF周波数:13.56[MHz]
ガス(Ar)流量:50[sccm]
パルスDCパワー:2000[W]
パルスDC周波数:20[kHz]
上述の抵抗変化素子1の製造方法によって、密度の異なる4枚のDLC膜をスパッタ法により熱酸化膜付きSi基板上に成膜した。実験例1及び実験例2はパルスDCスパッタリングにより成膜し、実験例3及び実験例4はRFスパッタリングにより成膜した。DLC膜の厚みは50nm、パルスDCスパッタリングにおける電源周波数は20kHz、RFスパッタリングにおける電源周波数は13.56MHzとした。その後、成膜した4枚のDLC膜の密度d(g/cm3)及び抵抗率ρ(Ω・cm)を測定した。
2…基板
3…下部電極層(第1の電極層)
4…酸化物半導体層
5…上部電極層(第2の電極層)
41…第1の金属酸化物層
42…第2の金属酸化物層
Claims (2)
- 第1の電極層と、
ダイヤモンドライクカーボンで形成され、前記ダイヤモンドライクカーボンの密度の値が2.3g/cm 3 以上2.6g/cm 3 以下の範囲である第2の電極層と、
前記第1の電極層と前記第2の電極層との間に形成され、第1の抵抗率を有する第1の金属酸化物層と、前記第1の金属酸化物層と前記第2の電極層との間に形成され、前記第1の抵抗率とは異なる第2の抵抗率を有する第2の金属酸化物層とを有する酸化物半導体層と
を具備する抵抗変化素子。 - 基板上に第1の電極層を形成し、
前記第1の電極層の上に、第1の抵抗率を有する第1の金属酸化物層を形成し、
前記第1の金属酸化物層の上に、前記第1の抵抗率とは異なる第2の抵抗率を有する第2の金属酸化物層を形成し、
前記第2の金属酸化物層の上に、ダイヤモンドライクカーボンで構成され、前記ダイヤモンドライクカーボンの密度の値が2.3g/cm 3 以上2.6g/cm 3 以下の範囲である第2の電極層をRFスパッタリング又はパルスDCスパッタリングによって形成する
抵抗変化素子の製造方法。
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JP2014032520 | 2014-02-24 | ||
JP2014032520 | 2014-02-24 | ||
PCT/JP2015/000680 WO2015125449A1 (ja) | 2014-02-24 | 2015-02-13 | 抵抗変化素子及びその製造方法 |
Publications (2)
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JPWO2015125449A1 JPWO2015125449A1 (ja) | 2017-03-30 |
JP6230203B2 true JP6230203B2 (ja) | 2017-11-15 |
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US (1) | US20170012197A1 (ja) |
JP (1) | JP6230203B2 (ja) |
KR (1) | KR101815799B1 (ja) |
CN (1) | CN106030800A (ja) |
TW (1) | TWI637485B (ja) |
WO (1) | WO2015125449A1 (ja) |
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US9064764B2 (en) * | 2012-03-22 | 2015-06-23 | Sionyx, Inc. | Pixel isolation elements, devices, and associated methods |
JP6825085B2 (ja) * | 2017-04-18 | 2021-02-03 | 株式会社アルバック | 抵抗変化素子の製造方法及び抵抗変化素子 |
CN113380948A (zh) * | 2021-06-10 | 2021-09-10 | 西交利物浦大学 | 具有多级存储功能的突触忆阻器及其制备方法 |
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JP3991230B2 (ja) * | 2004-02-12 | 2007-10-17 | セイコーエプソン株式会社 | 強誘電体キャパシタ及びその形成方法、ならびに強誘電体メモリ |
WO2007119733A1 (ja) * | 2006-04-13 | 2007-10-25 | Ulvac, Inc. | 抵抗変化素子の製造方法 |
US8742387B2 (en) * | 2008-06-25 | 2014-06-03 | Qimonda Ag | Resistive memory devices with improved resistive changing elements |
WO2010029634A1 (ja) * | 2008-09-11 | 2010-03-18 | 株式会社 東芝 | 抵抗変化素子及び情報記録再生装置 |
JP2011111648A (ja) * | 2009-11-26 | 2011-06-09 | Dainippon Printing Co Ltd | 導電性基材の製造方法及び製造装置 |
JP5432423B2 (ja) * | 2012-01-23 | 2014-03-05 | パナソニック株式会社 | 不揮発性記憶素子及びその製造方法 |
JP2013207130A (ja) | 2012-03-29 | 2013-10-07 | Ulvac Japan Ltd | 抵抗変化素子及びその製造方法 |
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2015
- 2015-02-13 WO PCT/JP2015/000680 patent/WO2015125449A1/ja active Application Filing
- 2015-02-13 CN CN201580009845.XA patent/CN106030800A/zh active Pending
- 2015-02-13 US US15/120,666 patent/US20170012197A1/en not_active Abandoned
- 2015-02-13 KR KR1020167020660A patent/KR101815799B1/ko active IP Right Grant
- 2015-02-13 JP JP2016503967A patent/JP6230203B2/ja active Active
- 2015-02-16 TW TW104105307A patent/TWI637485B/zh active
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Publication number | Publication date |
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WO2015125449A1 (ja) | 2015-08-27 |
TW201547006A (zh) | 2015-12-16 |
KR20160104666A (ko) | 2016-09-05 |
KR101815799B1 (ko) | 2018-01-05 |
US20170012197A1 (en) | 2017-01-12 |
CN106030800A (zh) | 2016-10-12 |
JPWO2015125449A1 (ja) | 2017-03-30 |
TWI637485B (zh) | 2018-10-01 |
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