JP7431558B2 - ホウ素非含有自由層のためのハイブリッド酸化物/金属キャップ層。 - Google Patents
ホウ素非含有自由層のためのハイブリッド酸化物/金属キャップ層。 Download PDFInfo
- Publication number
- JP7431558B2 JP7431558B2 JP2019206082A JP2019206082A JP7431558B2 JP 7431558 B2 JP7431558 B2 JP 7431558B2 JP 2019206082 A JP2019206082 A JP 2019206082A JP 2019206082 A JP2019206082 A JP 2019206082A JP 7431558 B2 JP7431558 B2 JP 7431558B2
- Authority
- JP
- Japan
- Prior art keywords
- oxide
- layer
- free
- magnetic tunnel
- forming
- 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.)
- Active
Links
- 229910052751 metal Inorganic materials 0.000 title claims description 98
- 239000002184 metal Substances 0.000 title claims description 93
- 230000005291 magnetic effect Effects 0.000 claims description 43
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 claims description 27
- 229910052796 boron Inorganic materials 0.000 claims description 27
- 230000004888 barrier function Effects 0.000 claims description 22
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 claims description 18
- LIVNPJMFVYWSIS-UHFFFAOYSA-N silicon monoxide Chemical compound [Si-]#[O+] LIVNPJMFVYWSIS-UHFFFAOYSA-N 0.000 claims description 18
- 238000000151 deposition Methods 0.000 claims description 17
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 claims description 17
- 239000000395 magnesium oxide Substances 0.000 claims description 17
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 claims description 17
- 238000000034 method Methods 0.000 claims description 16
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 14
- 238000004519 manufacturing process Methods 0.000 claims description 14
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 12
- 229910003321 CoFe Inorganic materials 0.000 claims description 10
- -1 MgAlO Chemical compound 0.000 claims description 9
- YVRGRDDGRSFXCH-UHFFFAOYSA-N magnesium;dioxido(oxo)titanium Chemical compound [Mg+2].[O-][Ti]([O-])=O YVRGRDDGRSFXCH-UHFFFAOYSA-N 0.000 claims description 9
- 239000011787 zinc oxide Substances 0.000 claims description 9
- 238000004544 sputter deposition Methods 0.000 claims description 8
- 229910019236 CoFeB Inorganic materials 0.000 claims description 7
- 229910052750 molybdenum Inorganic materials 0.000 claims description 7
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 claims description 7
- 229910002441 CoNi Inorganic materials 0.000 claims description 6
- 229910002555 FeNi Inorganic materials 0.000 claims description 6
- 229910018557 Si O Inorganic materials 0.000 claims description 6
- 229910052759 nickel Inorganic materials 0.000 claims description 6
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 claims description 6
- 229910017107 AlOx Inorganic materials 0.000 claims description 5
- 229910007746 Zr—O Inorganic materials 0.000 claims description 5
- 229910052742 iron Inorganic materials 0.000 claims description 5
- 150000002739 metals Chemical class 0.000 claims description 5
- 229910019233 CoFeNi Inorganic materials 0.000 claims description 4
- 229910015372 FeAl Inorganic materials 0.000 claims description 4
- 229910005347 FeSi Inorganic materials 0.000 claims description 4
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 claims description 4
- 229910017028 MnSi Inorganic materials 0.000 claims description 4
- AJNVQOSZGJRYEI-UHFFFAOYSA-N digallium;oxygen(2-) Chemical compound [O-2].[O-2].[O-2].[Ga+3].[Ga+3] AJNVQOSZGJRYEI-UHFFFAOYSA-N 0.000 claims description 4
- 229910001195 gallium oxide Inorganic materials 0.000 claims description 4
- 230000001590 oxidative effect Effects 0.000 claims description 4
- 229910052707 ruthenium Inorganic materials 0.000 claims description 4
- 229910052721 tungsten Inorganic materials 0.000 claims description 4
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 claims description 3
- KJTLSVCANCCWHF-UHFFFAOYSA-N Ruthenium Chemical compound [Ru] KJTLSVCANCCWHF-UHFFFAOYSA-N 0.000 claims description 3
- ZDZZPLGHBXACDA-UHFFFAOYSA-N [B].[Fe].[Co] Chemical compound [B].[Fe].[Co] ZDZZPLGHBXACDA-UHFFFAOYSA-N 0.000 claims description 3
- 229910017052 cobalt Inorganic materials 0.000 claims description 3
- 239000010941 cobalt Substances 0.000 claims description 3
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 claims description 3
- 239000011733 molybdenum Substances 0.000 claims description 3
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 claims description 3
- 239000010937 tungsten Substances 0.000 claims description 3
- GYHNNYVSQQEPJS-UHFFFAOYSA-N Gallium Chemical compound [Ga] GYHNNYVSQQEPJS-UHFFFAOYSA-N 0.000 claims description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 2
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 2
- WOGDVZBDMUTSBR-UHFFFAOYSA-N [Mo].[B].[Fe].[Co] Chemical compound [Mo].[B].[Fe].[Co] WOGDVZBDMUTSBR-UHFFFAOYSA-N 0.000 claims description 2
- 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 claims description 2
- ILCYGSITMBHYNK-UHFFFAOYSA-N [Si]=O.[Hf] Chemical compound [Si]=O.[Hf] ILCYGSITMBHYNK-UHFFFAOYSA-N 0.000 claims description 2
- NNWNJIBSWDEBEB-UHFFFAOYSA-N [W].[B].[Fe].[Co] Chemical compound [W].[B].[Fe].[Co] NNWNJIBSWDEBEB-UHFFFAOYSA-N 0.000 claims description 2
- MIQVEZFSDIJTMW-UHFFFAOYSA-N aluminum hafnium(4+) oxygen(2-) Chemical compound [O-2].[Al+3].[Hf+4] MIQVEZFSDIJTMW-UHFFFAOYSA-N 0.000 claims description 2
- GSWGDDYIUCWADU-UHFFFAOYSA-N aluminum magnesium oxygen(2-) Chemical compound [O--].[Mg++].[Al+3] GSWGDDYIUCWADU-UHFFFAOYSA-N 0.000 claims description 2
- HVXCTUSYKCFNMG-UHFFFAOYSA-N aluminum oxygen(2-) zirconium(4+) Chemical compound [O-2].[Zr+4].[Al+3] HVXCTUSYKCFNMG-UHFFFAOYSA-N 0.000 claims description 2
- FQMNUIZEFUVPNU-UHFFFAOYSA-N cobalt iron Chemical compound [Fe].[Co].[Co] FQMNUIZEFUVPNU-UHFFFAOYSA-N 0.000 claims description 2
- ZGDWHDKHJKZZIQ-UHFFFAOYSA-N cobalt nickel Chemical compound [Co].[Ni].[Ni].[Ni] ZGDWHDKHJKZZIQ-UHFFFAOYSA-N 0.000 claims description 2
- 229910052733 gallium Inorganic materials 0.000 claims description 2
- 229910000449 hafnium oxide Inorganic materials 0.000 claims description 2
- KQHQLIAOAVMAOW-UHFFFAOYSA-N hafnium(4+) oxygen(2-) zirconium(4+) Chemical compound [O--].[O--].[O--].[O--].[Zr+4].[Hf+4] KQHQLIAOAVMAOW-UHFFFAOYSA-N 0.000 claims description 2
- WIHZLLGSGQNAGK-UHFFFAOYSA-N hafnium(4+);oxygen(2-) Chemical compound [O-2].[O-2].[Hf+4] WIHZLLGSGQNAGK-UHFFFAOYSA-N 0.000 claims description 2
- 229910052738 indium Inorganic materials 0.000 claims description 2
- APFVFJFRJDLVQX-UHFFFAOYSA-N indium atom Chemical compound [In] APFVFJFRJDLVQX-UHFFFAOYSA-N 0.000 claims description 2
- UGKDIUIOSMUOAW-UHFFFAOYSA-N iron nickel Chemical compound [Fe].[Ni] UGKDIUIOSMUOAW-UHFFFAOYSA-N 0.000 claims description 2
- 229910052749 magnesium Inorganic materials 0.000 claims description 2
- 239000011777 magnesium Substances 0.000 claims description 2
- 229910000484 niobium oxide Inorganic materials 0.000 claims description 2
- URLJKFSTXLNXLG-UHFFFAOYSA-N niobium(5+);oxygen(2-) Chemical compound [O-2].[O-2].[O-2].[O-2].[O-2].[Nb+5].[Nb+5] URLJKFSTXLNXLG-UHFFFAOYSA-N 0.000 claims description 2
- SIWVEOZUMHYXCS-UHFFFAOYSA-N oxo(oxoyttriooxy)yttrium Chemical compound O=[Y]O[Y]=O SIWVEOZUMHYXCS-UHFFFAOYSA-N 0.000 claims description 2
- 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 claims description 2
- RVTZCBVAJQQJTK-UHFFFAOYSA-N oxygen(2-);zirconium(4+) Chemical compound [O-2].[O-2].[Zr+4] RVTZCBVAJQQJTK-UHFFFAOYSA-N 0.000 claims description 2
- 229910052814 silicon oxide Inorganic materials 0.000 claims description 2
- 229910001936 tantalum oxide Inorganic materials 0.000 claims description 2
- 229910001935 vanadium oxide Inorganic materials 0.000 claims description 2
- 229910001928 zirconium oxide Inorganic materials 0.000 claims description 2
- GFQYVLUOOAAOGM-UHFFFAOYSA-N zirconium(iv) silicate Chemical compound [Zr+4].[O-][Si]([O-])([O-])[O-] GFQYVLUOOAAOGM-UHFFFAOYSA-N 0.000 claims description 2
- 230000014759 maintenance of location Effects 0.000 description 16
- 238000013016 damping Methods 0.000 description 10
- 239000000463 material Substances 0.000 description 10
- 229910045601 alloy Inorganic materials 0.000 description 9
- 239000000956 alloy Substances 0.000 description 9
- 230000005415 magnetization Effects 0.000 description 8
- 229910044991 metal oxide Inorganic materials 0.000 description 8
- 150000004706 metal oxides Chemical class 0.000 description 8
- 239000002131 composite material Substances 0.000 description 7
- 230000008569 process Effects 0.000 description 7
- 238000005259 measurement Methods 0.000 description 6
- 238000000231 atomic layer deposition Methods 0.000 description 5
- 230000005350 ferromagnetic resonance Effects 0.000 description 5
- 230000006870 function Effects 0.000 description 5
- 230000003647 oxidation Effects 0.000 description 5
- 238000007254 oxidation reaction Methods 0.000 description 5
- 238000005240 physical vapour deposition Methods 0.000 description 5
- 238000000623 plasma-assisted chemical vapour deposition Methods 0.000 description 5
- 238000004549 pulsed laser deposition Methods 0.000 description 5
- 238000000137 annealing Methods 0.000 description 4
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 4
- 239000000696 magnetic material Substances 0.000 description 4
- 229910052760 oxygen Inorganic materials 0.000 description 4
- 239000001301 oxygen Substances 0.000 description 4
- 238000007747 plating Methods 0.000 description 4
- 230000008021 deposition Effects 0.000 description 3
- 238000009792 diffusion process Methods 0.000 description 3
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 239000000758 substrate Substances 0.000 description 3
- 229910018516 Al—O Inorganic materials 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 2
- 238000005229 chemical vapour deposition Methods 0.000 description 2
- 238000004590 computer program Methods 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 229910052741 iridium Inorganic materials 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 230000003071 parasitic effect Effects 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 229910052715 tantalum Inorganic materials 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 229910052723 transition metal Inorganic materials 0.000 description 2
- 150000003624 transition metals Chemical class 0.000 description 2
- 229910000521 B alloy Inorganic materials 0.000 description 1
- 229910001313 Cobalt-iron alloy Inorganic materials 0.000 description 1
- 229910005535 GaOx Inorganic materials 0.000 description 1
- 229910003070 TaOx Inorganic materials 0.000 description 1
- 229910003087 TiOx Inorganic materials 0.000 description 1
- 229910007541 Zn O Inorganic materials 0.000 description 1
- 229910007667 ZnOx Inorganic materials 0.000 description 1
- 229910003134 ZrOx Inorganic materials 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000005234 chemical deposition Methods 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000005347 demagnetization Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 230000014509 gene expression Effects 0.000 description 1
- 229910001291 heusler alloy Inorganic materials 0.000 description 1
- GKOZUEZYRPOHIO-UHFFFAOYSA-N iridium atom Chemical compound [Ir] GKOZUEZYRPOHIO-UHFFFAOYSA-N 0.000 description 1
- 230000005055 memory storage Effects 0.000 description 1
- 239000003595 mist Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 229910052697 platinum Inorganic materials 0.000 description 1
- GUVRBAGPIYLISA-UHFFFAOYSA-N tantalum atom Chemical compound [Ta] GUVRBAGPIYLISA-UHFFFAOYSA-N 0.000 description 1
- HLLICFJUWSZHRJ-UHFFFAOYSA-N tioxidazole Chemical compound CCCOC1=CC=C2N=C(NC(=O)OC)SC2=C1 HLLICFJUWSZHRJ-UHFFFAOYSA-N 0.000 description 1
- 230000005641 tunneling Effects 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R33/00—Arrangements or instruments for measuring magnetic variables
- G01R33/02—Measuring direction or magnitude of magnetic fields or magnetic flux
- G01R33/06—Measuring direction or magnitude of magnetic fields or magnetic flux using galvano-magnetic devices
- G01R33/09—Magnetoresistive devices
- G01R33/098—Magnetoresistive devices comprising tunnel junctions, e.g. tunnel magnetoresistance sensors
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F10/00—Thin magnetic films, e.g. of one-domain structure
- H01F10/32—Spin-exchange-coupled multilayers, e.g. nanostructured superlattices
- H01F10/324—Exchange coupling of magnetic film pairs via a very thin non-magnetic spacer, e.g. by exchange with conduction electrons of the spacer
- H01F10/3254—Exchange coupling of magnetic film pairs via a very thin non-magnetic spacer, e.g. by exchange with conduction electrons of the spacer the spacer being semiconducting or insulating, e.g. for spin tunnel junction [STJ]
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10N—ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10N50/00—Galvanomagnetic devices
- H10N50/10—Magnetoresistive devices
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F10/00—Thin magnetic films, e.g. of one-domain structure
- H01F10/32—Spin-exchange-coupled multilayers, e.g. nanostructured superlattices
- H01F10/324—Exchange coupling of magnetic film pairs via a very thin non-magnetic spacer, e.g. by exchange with conduction electrons of the spacer
- H01F10/3286—Spin-exchange coupled multilayers having at least one layer with perpendicular magnetic anisotropy
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F10/00—Thin magnetic films, e.g. of one-domain structure
- H01F10/32—Spin-exchange-coupled multilayers, e.g. nanostructured superlattices
- H01F10/324—Exchange coupling of magnetic film pairs via a very thin non-magnetic spacer, e.g. by exchange with conduction electrons of the spacer
- H01F10/3295—Spin-exchange coupled multilayers wherein the magnetic pinned or free layers are laminated without anti-parallel coupling within the pinned and free layers
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
- H01F41/32—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for applying conductive, insulating or magnetic material on a magnetic film, specially adapted for a thin magnetic film
- H01F41/325—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for applying conductive, insulating or magnetic material on a magnetic film, specially adapted for a thin magnetic film applying a noble metal capping on a spin-exchange-coupled multilayer, e.g. spin filter deposition
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10N—ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10N50/00—Galvanomagnetic devices
- H10N50/01—Manufacture or treatment
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10N—ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10N50/00—Galvanomagnetic devices
- H10N50/80—Constructional details
- H10N50/85—Magnetic active materials
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
- H01F41/14—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for applying magnetic films to substrates
- H01F41/30—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for applying magnetic films to substrates for applying nanostructures, e.g. by molecular beam epitaxy [MBE]
- H01F41/302—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for applying magnetic films to substrates for applying nanostructures, e.g. by molecular beam epitaxy [MBE] for applying spin-exchange-coupled multilayers, e.g. nanostructured superlattices
- H01F41/305—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for applying magnetic films to substrates for applying nanostructures, e.g. by molecular beam epitaxy [MBE] for applying spin-exchange-coupled multilayers, e.g. nanostructured superlattices applying the spacer or adjusting its interface, e.g. in order to enable particular effect different from exchange coupling
- H01F41/307—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for applying magnetic films to substrates for applying nanostructures, e.g. by molecular beam epitaxy [MBE] for applying spin-exchange-coupled multilayers, e.g. nanostructured superlattices applying the spacer or adjusting its interface, e.g. in order to enable particular effect different from exchange coupling insulating or semiconductive spacer
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Physics & Mathematics (AREA)
- Nanotechnology (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Hall/Mr Elements (AREA)
- Mram Or Spin Memory Techniques (AREA)
- Thin Magnetic Films (AREA)
Description
はプランク定数、αは減衰定数、Hkは異方性磁界である。素子の長い保持時間及び熱安定性のためには、十分な面積磁化(厚さt及び飽和磁化MSの積)MSt、及び高い異方性磁界Hkが好ましいので、本発明の実施形態によれば、低いスイッチング電流を達成し、電力消費の効率を改善するために減衰定数αは減少する。
210:固定層
220:主酸化物バリア層
230:自由層、ホウ素非含有自由層
300:ハイブリッド酸化物/金属キャップ層
310:第1酸化物層
320:第2酸化物層
330:金属キャップ層
400:金属層及び/又はハードマスク
Claims (18)
- 固定層と、
前記固定層上に主酸化物バリア層と、
前記主酸化物バリア層上に自由層と、
前記自由層上にハイブリッド酸化物/金属キャップ層と、を含み、
前記ハイブリッド酸化物/金属キャップ層は、
前記自由層上に第1酸化物層と、
前記第1酸化物層上に第2酸化物層と、
前記第2酸化物層上に金属キャップ層と、を含み、
前記自由層は、ホウ素(B)を含まず、
前記第1酸化物層が第1酸化物を含み、
前記第2酸化物層が第2酸化物を含み、前記第2酸化物は、前記第1酸化物のバンドギャップと同一であるか、又はそのバンドギャップより大きいバンドギャップを含み、
前記金属キャップ層は、酸化物を形成するギブス自由エネルギーが前記第1酸化物層内の金属元素が形成するギブス自由エネルギーよりも大きく、前記第2酸化物層内の金属元素が酸化物を形成するギブス自由エネルギーよりも大きい金属元素を含み、
前記第2酸化物層は、前記第1酸化物及び前記金属キャップ層に比べて酸化物を形成するギブス自由エネルギーが最も低い金属を含む、
磁気トンネル接合スタック。 - 前記第1酸化物層は、アルミニウム酸化物(AlOx)、亜鉛酸化物(ZnOx)、チタン酸化物(TiOx)、バナジウム酸化物(VOx)、ガリウム酸化物(GaOx)、イットリウム酸化物(YOx)、ジルコニウム酸化物(ZrOx)、ニオブ酸化物(NbOx)、ハフニウム酸化物(HfOx)、タンタル酸化物(TaOx)、シリコン酸化物(SiOx)、マグネシウムガリウム酸化物(MgGaOx)、ハフニウムジルコニウム酸化物(Hf‐Zr‐Ox)、ハフニウムシリコン酸化物(Hf‐Si‐Ox)、ジルコニウムシリコン酸化物(Zr‐Si‐Ox)、ハフニウムアルミニウム酸化物(Hf‐Al‐Ox)、ジルコニウムアルミニウム酸化物(Zr‐Al‐Ox)、及びインジウムガリウム亜鉛酸化物(In‐Ga‐Zn‐Ox)の中から選択された一つ又は複数の酸化物を含む、請求項1に記載の磁気トンネル接合スタック。
- 前記第2酸化物層は、マグネシウム酸化物(MgO)、マグネシウムアルミニウム酸化物(MgAlO)、マグネシウムチタン酸化物(MgTiO)、及びアルミニウム酸化物(AlOx)の中から選択された一つ又は複数の酸化物を含む、請求項1に記載の磁気トンネル接合スタック。
- 前記金属キャップ層は、ルテニウム(Ru)、タングステン(W)、モリブデン(Mo)、コバルト(Co)、鉄(Fe)、ニッケル(Ni)、コバルト鉄(CoFe)、鉄ニッケル(FeNi)、コバルトニッケル(CoNi)、コバルト鉄ボロン(CoFeB)、コバルト鉄ボロンモリブデン(CoFeBMo)、及びコバルト鉄ボロンタングステン(CoFeBW)の中から選択された一つ又は複数の金属を含む、請求項1に記載の磁気トンネル接合スタック。
- 前記ハイブリッド酸化物/金属キャップ層は、ホウ素を含まない、請求項1に記載の磁気トンネル接合スタック。
- 前記第1酸化物層は、非晶質層又は半結晶質層である、請求項1に記載の磁気トンネル接合スタック。
- 前記第2酸化物層は、非晶質層又は結晶質層又は半結晶質層である、請求項1に記載の磁気トンネル接合スタック。
- 前記自由層は、CoxFe1‐x(0<x<1)、CoFeNi、Co2FeAl、Co2MnSi、Co2FeMnSi、Co2FeSi、MnGa、及びMnGeのうちの少なくとも一つを含む、請求項1に記載の磁気トンネル接合スタック。
- 前記自由層の減衰定数(α)は、0.006以下である、請求項1に記載の磁気トンネル接合スタック。
- 前記自由層は、MStが80μemu/cm2よりも大きく、Hkが+1kOeよりも大きい、請求項1に記載の磁気トンネル接合スタック。
- 固定層上に主酸化物バリア層を形成することと、
前記主酸化物バリア層上に自由層を形成することと、
前記自由層上にハイブリッド酸化物/金属キャップ層を形成することと、を含み、
前記ハイブリッド酸化物/金属キャップ層を形成することは、
前記自由層上に第1酸化物層を形成することと、
前記第1酸化物層上に第2酸化物層を形成することと、
前記第2酸化物層上に金属キャップ層を形成することと、を含み、
前記自由層は、ホウ素(B)を含まず、
前記第1酸化物層が第1酸化物を含み、
前記第2酸化物層が第2酸化物を含み、前記第2酸化物は、前記第1酸化物のバンドギャップと同一であるか、又はそのバンドギャップより大きいバンドギャップを含み、
前記金属キャップ層は、酸化物を形成するギブス自由エネルギーが前記第1酸化物層内の金属元素が形成するギブス自由エネルギーよりも大きく、前記第2酸化物層内の金属元素が酸化物を形成するギブス自由エネルギーよりも大きい金属元素を含み、
前記第2酸化物層は、前記第1酸化物及び前記金属キャップ層に比べて酸化物を形成するギブス自由エネルギーが最も低い金属を含む、磁気トンネル接合スタックの製造方法。 - 前記第1酸化物層を形成すること、又は前記第2酸化物層を形成することは、酸化物ターゲットを直接スパッタリングすることである、請求項11に記載の磁気トンネル接合スタックの製造方法。
- 前記第1酸化物層を形成すること、又は前記第2酸化物層を形成することは、
金属層を蒸着すること、及び
前記金属層を酸化させて前記第1又は第2酸化物層を提供することを含む、請求項11に記載の磁気トンネル接合スタックの製造方法。 - 前記第1酸化物層は、AlOx、ZnOx、TiOx、VOx、GaOx、YOx、ZrOx、NbOx、HfOx、TaOx、SiOx、MgGaOx、Hf‐Zr‐Ox、Hf‐Si‐Ox、Zr‐Si‐Ox、Hf‐Al‐Ox、Zr‐Al‐Ox、及びIn‐Ga‐Zn‐Oxの中から選択された一つ又は複数の酸化物を含む、請求項11に記載の磁気トンネル接合スタックの製造方法。
- 前記第2酸化物層は、MgO、MgAlO、MgTiO、及びAlOxの中から選択された一つ又は複数の酸化物を含む、請求項11に記載の磁気トンネル接合スタックの製造方法。
- 前記金属キャップ層は、Ru、W、Mo、Co、Fe、Ni、CoFe、FeNi、CoNi、CoFeB、CoFeBMo、及びCoFeBWの中から選択された一つ又は複数の金属を含む、請求項11に記載の磁気トンネル接合スタックの製造方法。
- 前記第1酸化物層は、1~6Åの厚さを有する、請求項11に記載の磁気トンネル接合スタックの製造方法。
- 前記自由層の減衰定数(α)は、0.006以下である、請求項11に記載の磁気トンネル接合スタックの製造方法。
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US16/194,248 | 2018-11-16 | ||
US16/194,248 US11009570B2 (en) | 2018-11-16 | 2018-11-16 | Hybrid oxide/metal cap layer for boron-free free layer |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2020088388A JP2020088388A (ja) | 2020-06-04 |
JP7431558B2 true JP7431558B2 (ja) | 2024-02-15 |
Family
ID=70727542
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2019206082A Active JP7431558B2 (ja) | 2018-11-16 | 2019-11-14 | ホウ素非含有自由層のためのハイブリッド酸化物/金属キャップ層。 |
Country Status (5)
Country | Link |
---|---|
US (1) | US11009570B2 (ja) |
JP (1) | JP7431558B2 (ja) |
KR (1) | KR102697449B1 (ja) |
CN (1) | CN111200059B (ja) |
TW (1) | TWI848018B (ja) |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP7308026B2 (ja) * | 2018-12-26 | 2023-07-13 | ヌヴォトンテクノロジージャパン株式会社 | 抵抗変化型不揮発性記憶素子及びそれを用いた抵抗変化型不揮発性記憶装置 |
US11456411B2 (en) * | 2019-07-02 | 2022-09-27 | HeFeChip Corporation Limited | Method for fabricating magnetic tunneling junction element with a composite capping layer |
US12108684B2 (en) | 2019-07-21 | 2024-10-01 | HeFeChip Corporation Limited | Magnetic tunneling junction element with a composite capping layer and magnetoresistive random access memory device using the same |
JP6806199B1 (ja) | 2019-08-08 | 2021-01-06 | Tdk株式会社 | 磁気抵抗効果素子およびホイスラー合金 |
JP6806200B1 (ja) | 2019-08-08 | 2021-01-06 | Tdk株式会社 | 磁気抵抗効果素子およびホイスラー合金 |
KR20230022163A (ko) * | 2020-06-10 | 2023-02-14 | 소니 세미컨덕터 솔루션즈 가부시키가이샤 | 자기 저항 효과 소자, 반도체 장치 및 전자 기기 |
CN111983531B (zh) * | 2020-07-09 | 2023-03-10 | 桐庐科邦磁性材料有限公司 | 一种磁铁充磁检测装置及检测方法 |
KR20230012370A (ko) * | 2021-07-15 | 2023-01-26 | 삼성전자주식회사 | 자기터널접합 소자 및 자기터널접합 소자를 포함하는 메모리 장치 |
US12114578B2 (en) | 2021-12-03 | 2024-10-08 | Samsung Electronics Co., Ltd. | Magnetoresistive memory elements for spin-transfer torque (STT) and spin-orbit torque (SOT) random access memories |
WO2023164860A1 (zh) * | 2022-03-03 | 2023-09-07 | 中国科学院微电子研究所 | 基于离子门调控的可重构神经元器件及其制备方法 |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2005032780A (ja) | 2003-07-07 | 2005-02-03 | Tdk Corp | 磁気抵抗効果素子、これを用いた磁気ヘッド、ヘッドサスペンションアセンブリ及び磁気ディスク装置 |
US20050231853A1 (en) | 2004-04-14 | 2005-10-20 | Jinshan Li | Current-in-the-plane spin valve magnetoresistive sensor with dual metal oxide capping layers |
JP2007142364A (ja) | 2005-10-19 | 2007-06-07 | Toshiba Corp | 磁気抵抗効果素子、磁気ランダムアクセスメモリ、電子カード及び電子装置 |
US20130075839A1 (en) | 2011-09-24 | 2013-03-28 | Taiwan Semiconductor Manufacturing Company, Ltd. | Structure and method for a mram device with an oxygen absorbing cap layer |
US20160043301A1 (en) | 2014-08-06 | 2016-02-11 | Samsung Electronics Co., Ltd. | Method and system for providing magnetic junctions including heusler multilayers |
JP2017505544A (ja) | 2014-02-12 | 2017-02-16 | クアルコム,インコーポレイテッド | 垂直磁気トンネル接合用のアモルファスキャップ層を含む二重界面自由層 |
US20170338402A1 (en) | 2016-05-18 | 2017-11-23 | International Business Machines Corporation | Noble metal cap layer for a metal oxide cap of a magnetic tunnel junction structure |
Family Cites Families (33)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3817399B2 (ja) * | 1999-12-24 | 2006-09-06 | 株式会社日立グローバルストレージテクノロジーズ | 磁気抵抗センサー |
US20020024778A1 (en) * | 2000-04-05 | 2002-02-28 | Xue Song Sheng | Spin valve films with improved cap layers |
WO2002077657A1 (en) * | 2001-03-22 | 2002-10-03 | Fujitsu Limited | Magnetoresistive spin-valve sensor and magnetic storage apparatus |
US6709767B2 (en) * | 2001-07-31 | 2004-03-23 | Hitachi Global Storage Technologies Netherlands B.V. | In-situ oxidized films for use as cap and gap layers in a spin-valve sensor and methods of manufacture |
JP2004247408A (ja) * | 2003-02-12 | 2004-09-02 | Sony Precision Technology Inc | 磁気検出センサ |
US7436635B2 (en) * | 2003-07-29 | 2008-10-14 | Hitachi Global Storage Technologies Netherlands B.V. | Current perpendicular to plane (CPP) magnetoresistive sensor having a highly conductive lead structure |
US7446985B2 (en) * | 2003-12-19 | 2008-11-04 | Agency For Science Technology And Research | Epitaxial oxide cap layers for enhancing GMR performance |
JP2006060044A (ja) * | 2004-08-20 | 2006-03-02 | Canon Anelva Corp | 磁気抵抗効果素子の製造方法 |
US7859034B2 (en) * | 2005-09-20 | 2010-12-28 | Grandis Inc. | Magnetic devices having oxide antiferromagnetic layer next to free ferromagnetic layer |
US7595520B2 (en) * | 2006-07-31 | 2009-09-29 | Magic Technologies, Inc. | Capping layer for a magnetic tunnel junction device to enhance dR/R and a method of making the same |
US7782569B2 (en) * | 2007-01-18 | 2010-08-24 | Sae Magnetics (Hk) Ltd. | Magnetic recording head and media comprising aluminum oxynitride underlayer and a diamond-like carbon overcoat |
US7750421B2 (en) * | 2007-07-23 | 2010-07-06 | Magic Technologies, Inc. | High performance MTJ element for STT-RAM and method for making the same |
EP2205029A1 (en) | 2009-01-06 | 2010-07-07 | Thomson Licensing | A method for scheduling wake/sleep cycles by a central device in a wireless network |
US8147994B2 (en) * | 2009-02-26 | 2012-04-03 | Tdk Corporation | Layered structure having FePt system magnetic layer and magnetoresistive effect element using the same |
US8315019B1 (en) * | 2009-03-31 | 2012-11-20 | Western Digital (Fremont), Llc | Method and system for providing an improved magnetoresistive structure utilizing an oxidation buffer layer |
US9082534B2 (en) | 2009-09-15 | 2015-07-14 | Samsung Electronics Co., Ltd. | Magnetic element having perpendicular anisotropy with enhanced efficiency |
JP5768498B2 (ja) * | 2011-05-23 | 2015-08-26 | ソニー株式会社 | 記憶素子、記憶装置 |
US9787463B2 (en) | 2011-10-14 | 2017-10-10 | Maxlinear, Inc. | Method and system for server-side message handling in a low-power wide area network |
US8852760B2 (en) | 2012-04-17 | 2014-10-07 | Headway Technologies, Inc. | Free layer with high thermal stability for magnetic device applications by insertion of a boron dusting layer |
US9147833B2 (en) | 2013-07-05 | 2015-09-29 | Headway Technologies, Inc. | Hybridized oxide capping layer for perpendicular magnetic anisotropy |
JP6276588B2 (ja) * | 2013-12-27 | 2018-02-07 | 三星電子株式会社Samsung Electronics Co.,Ltd. | 磁気トンネル接合素子 |
KR102120865B1 (ko) | 2014-01-14 | 2020-06-17 | 삼성전자주식회사 | 디스플레이 장치, 디스플레이 장치의 드라이버, 이를 포함하는 전자 장치 및 디스플레이 시스템 |
US9184375B1 (en) | 2014-07-03 | 2015-11-10 | Samsung Electronics Co., Ltd. | Magnetic junctions using asymmetric free layers and suitable for use in spin transfer torque memories |
KR102245748B1 (ko) | 2014-09-12 | 2021-04-29 | 삼성전자주식회사 | 자기 기억 소자 및 이의 제조 방법 |
KR101711741B1 (ko) * | 2015-06-29 | 2017-03-03 | 한양대학교 산학협력단 | 수직자기이방성을 갖는 mtj 구조 및 이를 포함하는 자성소자 |
US9425387B1 (en) | 2015-09-08 | 2016-08-23 | Headway Technologies, Inc. | Magnetic element with perpendicular magnetic anisotropy for high coercivity after high temperature annealing |
KR102397904B1 (ko) | 2015-09-17 | 2022-05-13 | 삼성전자주식회사 | 낮은 보론 농도를 갖는 영역 및 높은 보론 농도를 갖는 영역을 포함하는 자유 층, 자기 저항 셀, 및 자기 저항 메모리 소자, 및 그 제조 방법 |
US10374145B2 (en) | 2015-10-14 | 2019-08-06 | International Business Machines Corporation | In-situ annealing and etch back steps to improve exchange stiffness in cobalt iron boride based perpendicular magnetic anisotropy free layers |
US10134808B2 (en) | 2015-11-02 | 2018-11-20 | Qualcomm Incorporated | Magnetic tunnel junction (MTJ) devices with heterogeneous free layer structure, particularly suited for spin-torque-transfer (STT) magnetic random access memory (MRAM) (STT MRAM) |
US10177197B2 (en) | 2015-11-16 | 2019-01-08 | Samsung Electronics Co., Ltd. | Magnetic junctions having elongated free layers |
US10256399B2 (en) | 2016-05-18 | 2019-04-09 | International Business Machines Corporation | Fabricating a cap layer for a magnetic random access memory (MRAM) device |
US10475564B2 (en) * | 2016-06-29 | 2019-11-12 | Taiwan Semiconductor Manufacturing Company, Ltd. | Perpendicularly magnetized ferromagnetic layers having an oxide interface allowing for improved control of oxidation |
WO2018004698A1 (en) | 2016-07-01 | 2018-01-04 | Intel Corporation | Device, system and method for improved magnetic anisotropy of a magnetic tunnel junction |
-
2018
- 2018-11-16 US US16/194,248 patent/US11009570B2/en active Active
-
2019
- 2019-09-24 KR KR1020190117412A patent/KR102697449B1/ko active IP Right Grant
- 2019-11-14 CN CN201911112142.6A patent/CN111200059B/zh active Active
- 2019-11-14 JP JP2019206082A patent/JP7431558B2/ja active Active
- 2019-11-15 TW TW108141627A patent/TWI848018B/zh active
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2005032780A (ja) | 2003-07-07 | 2005-02-03 | Tdk Corp | 磁気抵抗効果素子、これを用いた磁気ヘッド、ヘッドサスペンションアセンブリ及び磁気ディスク装置 |
US20050231853A1 (en) | 2004-04-14 | 2005-10-20 | Jinshan Li | Current-in-the-plane spin valve magnetoresistive sensor with dual metal oxide capping layers |
JP2007142364A (ja) | 2005-10-19 | 2007-06-07 | Toshiba Corp | 磁気抵抗効果素子、磁気ランダムアクセスメモリ、電子カード及び電子装置 |
US20130075839A1 (en) | 2011-09-24 | 2013-03-28 | Taiwan Semiconductor Manufacturing Company, Ltd. | Structure and method for a mram device with an oxygen absorbing cap layer |
JP2017505544A (ja) | 2014-02-12 | 2017-02-16 | クアルコム,インコーポレイテッド | 垂直磁気トンネル接合用のアモルファスキャップ層を含む二重界面自由層 |
US20160043301A1 (en) | 2014-08-06 | 2016-02-11 | Samsung Electronics Co., Ltd. | Method and system for providing magnetic junctions including heusler multilayers |
US20170338402A1 (en) | 2016-05-18 | 2017-11-23 | International Business Machines Corporation | Noble metal cap layer for a metal oxide cap of a magnetic tunnel junction structure |
Also Published As
Publication number | Publication date |
---|---|
US20200158796A1 (en) | 2020-05-21 |
CN111200059A (zh) | 2020-05-26 |
TW202025527A (zh) | 2020-07-01 |
KR20200057610A (ko) | 2020-05-26 |
KR102697449B1 (ko) | 2024-08-21 |
CN111200059B (zh) | 2024-09-24 |
TWI848018B (zh) | 2024-07-11 |
US11009570B2 (en) | 2021-05-18 |
JP2020088388A (ja) | 2020-06-04 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP7431558B2 (ja) | ホウ素非含有自由層のためのハイブリッド酸化物/金属キャップ層。 | |
US20210234092A1 (en) | Reduction of Barrier Resistance X Area (RA) Product and Protection of Perpendicular Magnetic Anisotropy (PMA) for Magnetic Device Applications | |
CN110741487B (zh) | 对于具有垂直磁异向性的磁性装置应用在高温退火后保持矫顽磁场 | |
US20180301266A1 (en) | Magnetic structures having dusting layer | |
US9182460B2 (en) | Method of fabricating a magnetoresistive element | |
US9082888B2 (en) | Inverted orthogonal spin transfer layer stack | |
US8852760B2 (en) | Free layer with high thermal stability for magnetic device applications by insertion of a boron dusting layer | |
EP4236663B1 (en) | Spin-current magnetization reversal element, magnetoresistive element, and magnetic memory | |
CN109427966B (zh) | 自旋流磁化反转元件、磁存储器 | |
US20180287052A1 (en) | MAGNETIC STRUCTURES INCLUDING FePd | |
US11211547B2 (en) | Spin-orbit-torque type magnetization rotating element, spin-orbit-torque type magnetoresistance effect element, and magnetic memory | |
US9705075B2 (en) | Cobalt (Co) and platinum (Pt)-based multilayer thin film having inverted structure and method for manufacturing same | |
EP3347927A1 (en) | Magnetic element with perpendicular magnetic anisotropy for high coercivity after high temperature annealing | |
JP5527669B2 (ja) | 強磁性トンネル接合体およびそれを用いた磁気抵抗効果素子 | |
US9082950B2 (en) | Increased magnetoresistance in an inverted orthogonal spin transfer layer stack | |
US20190088711A1 (en) | Spin current magnetization rotational element, spin-orbit torque magnetoresistance effect element, and magnetic memory | |
JP7081842B2 (ja) | スピン起動トルクベースのスイッチング素子の製造方法 | |
KR101144211B1 (ko) | 자기저항소자 | |
JP2020155606A (ja) | スピン流磁化反転素子及び磁気メモリ | |
WO2004109820A1 (en) | MAGNETIC TUNNEL JUNCTIONS INCORPORATING AMORPHOUS CoNbZr ALLOYS AND NANO-OXIDE LAYERS |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
A621 | Written request for application examination |
Free format text: JAPANESE INTERMEDIATE CODE: A621 Effective date: 20220927 |
|
A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20230905 |
|
A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20231204 |
|
TRDD | Decision of grant or rejection written | ||
A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 20240109 |
|
A61 | First payment of annual fees (during grant procedure) |
Free format text: JAPANESE INTERMEDIATE CODE: A61 Effective date: 20240202 |
|
R150 | Certificate of patent or registration of utility model |
Ref document number: 7431558 Country of ref document: JP Free format text: JAPANESE INTERMEDIATE CODE: R150 |