JP6212646B2 - メモリセル、製造方法、及び、半導体デバイス - Google Patents
メモリセル、製造方法、及び、半導体デバイス Download PDFInfo
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- JP6212646B2 JP6212646B2 JP2016543925A JP2016543925A JP6212646B2 JP 6212646 B2 JP6212646 B2 JP 6212646B2 JP 2016543925 A JP2016543925 A JP 2016543925A JP 2016543925 A JP2016543925 A JP 2016543925A JP 6212646 B2 JP6212646 B2 JP 6212646B2
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- 239000004065 semiconductor Substances 0.000 title description 27
- 238000004519 manufacturing process Methods 0.000 title description 13
- 230000005291 magnetic effect Effects 0.000 claims description 292
- 239000000463 material Substances 0.000 claims description 280
- 239000000696 magnetic material Substances 0.000 claims description 175
- 238000000034 method Methods 0.000 claims description 40
- 239000013626 chemical specie Substances 0.000 claims description 32
- 239000000758 substrate Substances 0.000 claims description 32
- 239000000126 substance Substances 0.000 claims description 26
- 229910019236 CoFeB Inorganic materials 0.000 claims description 25
- 239000013078 crystal Substances 0.000 claims description 23
- 229910052796 boron Inorganic materials 0.000 claims description 21
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 claims description 18
- 238000000137 annealing Methods 0.000 claims description 17
- 230000002950 deficient Effects 0.000 claims description 15
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 claims description 14
- 239000000395 magnesium oxide Substances 0.000 claims description 14
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 claims description 14
- 229910052715 tantalum Inorganic materials 0.000 claims description 13
- GUVRBAGPIYLISA-UHFFFAOYSA-N tantalum atom Chemical compound [Ta] GUVRBAGPIYLISA-UHFFFAOYSA-N 0.000 claims description 13
- 229910052751 metal Inorganic materials 0.000 claims description 11
- 239000002184 metal Substances 0.000 claims description 11
- 230000001590 oxidative effect Effects 0.000 claims description 8
- 238000004891 communication Methods 0.000 claims description 6
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 claims description 6
- 229910052721 tungsten Inorganic materials 0.000 claims description 6
- 239000010937 tungsten Substances 0.000 claims description 6
- 239000011777 magnesium Substances 0.000 claims description 4
- 230000002093 peripheral effect Effects 0.000 claims description 4
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 claims description 3
- 229910052749 magnesium Inorganic materials 0.000 claims description 3
- 150000001875 compounds Chemical class 0.000 claims description 2
- 229910052735 hafnium Inorganic materials 0.000 claims description 2
- VBJZVLUMGGDVMO-UHFFFAOYSA-N hafnium atom Chemical compound [Hf] VBJZVLUMGGDVMO-UHFFFAOYSA-N 0.000 claims description 2
- QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical compound [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 claims 1
- ZDZZPLGHBXACDA-UHFFFAOYSA-N [B].[Fe].[Co] Chemical compound [B].[Fe].[Co] ZDZZPLGHBXACDA-UHFFFAOYSA-N 0.000 claims 1
- 150000002736 metal compounds Chemical class 0.000 claims 1
- 229910052726 zirconium Inorganic materials 0.000 claims 1
- 241000894007 species Species 0.000 description 59
- 230000004888 barrier function Effects 0.000 description 21
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 20
- 239000004020 conductor Substances 0.000 description 19
- 238000012545 processing Methods 0.000 description 15
- 229910017052 cobalt Inorganic materials 0.000 description 9
- 239000010941 cobalt Substances 0.000 description 9
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 9
- 238000011156 evaluation Methods 0.000 description 9
- 230000006870 function Effects 0.000 description 8
- 229910052742 iron Inorganic materials 0.000 description 8
- 238000002425 crystallisation Methods 0.000 description 7
- 230000008025 crystallization Effects 0.000 description 7
- KDLHZDBZIXYQEI-UHFFFAOYSA-N Palladium Chemical compound [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 description 6
- 230000015572 biosynthetic process Effects 0.000 description 6
- 239000010936 titanium Substances 0.000 description 6
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 5
- 230000008859 change Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 5
- 230000001965 increasing effect Effects 0.000 description 5
- 230000006698 induction Effects 0.000 description 5
- 238000002347 injection Methods 0.000 description 5
- 239000007924 injection Substances 0.000 description 5
- 230000005389 magnetism Effects 0.000 description 5
- 230000005415 magnetization Effects 0.000 description 5
- 229910052710 silicon Inorganic materials 0.000 description 5
- 239000010703 silicon Substances 0.000 description 5
- 230000007847 structural defect Effects 0.000 description 5
- KJTLSVCANCCWHF-UHFFFAOYSA-N Ruthenium Chemical compound [Ru] KJTLSVCANCCWHF-UHFFFAOYSA-N 0.000 description 4
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 4
- 238000009792 diffusion process Methods 0.000 description 4
- 230000001747 exhibiting effect Effects 0.000 description 4
- 238000000059 patterning Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 229910052707 ruthenium Inorganic materials 0.000 description 4
- 229910052719 titanium Inorganic materials 0.000 description 4
- 238000000231 atomic layer deposition Methods 0.000 description 3
- 238000007796 conventional method Methods 0.000 description 3
- 238000005259 measurement Methods 0.000 description 3
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 3
- 238000003860 storage Methods 0.000 description 3
- 230000007704 transition Effects 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 2
- NRTOMJZYCJJWKI-UHFFFAOYSA-N Titanium nitride Chemical compound [Ti]#N NRTOMJZYCJJWKI-UHFFFAOYSA-N 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000003302 ferromagnetic material Substances 0.000 description 2
- 230000001939 inductive effect Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 2
- 229910052763 palladium Inorganic materials 0.000 description 2
- 238000005240 physical vapour deposition Methods 0.000 description 2
- MZLGASXMSKOWSE-UHFFFAOYSA-N tantalum nitride Chemical compound [Ta]#N MZLGASXMSKOWSE-UHFFFAOYSA-N 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- JBRZTFJDHDCESZ-UHFFFAOYSA-N AsGa Chemical compound [As]#[Ga] JBRZTFJDHDCESZ-UHFFFAOYSA-N 0.000 description 1
- 229910003321 CoFe Inorganic materials 0.000 description 1
- JMASRVWKEDWRBT-UHFFFAOYSA-N Gallium nitride Chemical compound [Ga]#N JMASRVWKEDWRBT-UHFFFAOYSA-N 0.000 description 1
- GPXJNWSHGFTCBW-UHFFFAOYSA-N Indium phosphide Chemical compound [In]#P GPXJNWSHGFTCBW-UHFFFAOYSA-N 0.000 description 1
- 241000699670 Mus sp. Species 0.000 description 1
- 229910000577 Silicon-germanium Inorganic materials 0.000 description 1
- FOPBMNGISYSNED-UHFFFAOYSA-N [Fe].[Co].[Tb] Chemical compound [Fe].[Co].[Tb] FOPBMNGISYSNED-UHFFFAOYSA-N 0.000 description 1
- LEVVHYCKPQWKOP-UHFFFAOYSA-N [Si].[Ge] Chemical compound [Si].[Ge] LEVVHYCKPQWKOP-UHFFFAOYSA-N 0.000 description 1
- 230000001154 acute effect Effects 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 238000004873 anchoring Methods 0.000 description 1
- 239000002885 antiferromagnetic material Substances 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 238000005229 chemical vapour deposition Methods 0.000 description 1
- 235000019504 cigarettes Nutrition 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000593 degrading effect Effects 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- -1 each of Co Substances 0.000 description 1
- 238000005530 etching Methods 0.000 description 1
- 239000002902 ferrimagnetic material Substances 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 229910052732 germanium Inorganic materials 0.000 description 1
- GNPVGFCGXDBREM-UHFFFAOYSA-N germanium atom Chemical compound [Ge] GNPVGFCGXDBREM-UHFFFAOYSA-N 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- UCNNJGDEJXIUCC-UHFFFAOYSA-L hydroxy(oxo)iron;iron Chemical compound [Fe].O[Fe]=O.O[Fe]=O UCNNJGDEJXIUCC-UHFFFAOYSA-L 0.000 description 1
- 239000012212 insulator Substances 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 229910001092 metal group alloy Inorganic materials 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 239000002907 paramagnetic material Substances 0.000 description 1
- 229910052697 platinum Inorganic materials 0.000 description 1
- 230000002028 premature Effects 0.000 description 1
- 229910052594 sapphire Inorganic materials 0.000 description 1
- 239000010980 sapphire Substances 0.000 description 1
- 230000002000 scavenging effect Effects 0.000 description 1
- VSZWPYCFIRKVQL-UHFFFAOYSA-N selanylidenegallium;selenium Chemical compound [Se].[Se]=[Ga].[Se]=[Ga] VSZWPYCFIRKVQL-UHFFFAOYSA-N 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000004528 spin coating Methods 0.000 description 1
- 238000000992 sputter etching Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 230000005641 tunneling Effects 0.000 description 1
Classifications
-
- 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
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11C—STATIC STORES
- G11C11/00—Digital stores characterised by the use of particular electric or magnetic storage elements; Storage elements therefor
- G11C11/02—Digital stores characterised by the use of particular electric or magnetic storage elements; Storage elements therefor using magnetic elements
- G11C11/16—Digital stores characterised by the use of particular electric or magnetic storage elements; Storage elements therefor using magnetic elements using elements in which the storage effect is based on magnetic spin effect
- G11C11/161—Digital stores characterised by the use of particular electric or magnetic storage elements; Storage elements therefor using magnetic elements using elements in which the storage effect is based on magnetic spin effect details concerning the memory cell structure, e.g. the layers of the ferromagnetic memory cell
-
- 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
- H10N50/10—Magnetoresistive devices
-
- 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
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Computer Hardware Design (AREA)
- Mram Or Spin Memory Techniques (AREA)
- Hall/Mr Elements (AREA)
Description
この出願は、「 MEMORY CELLS, METHODS OF FABRICATION, AND SEMICONDUCTOR DEVICES」に対する、2013年9月18日出願の米国特許出願第14/030,763号の出願日の利益を主張する。
本開示は、様々な実施形態において、一般に、メモリデバイス設計及び製造の分野に関する。より詳しくは、この開示は、スピン注入メモリ(spin torque transfer magnetic random access memory(STT−MRAM))セルとして特徴付けられるメモリセルの設計及び製造に関する。
Claims (12)
- 酸化物材料と他の酸化物材料との間に磁性材料を形成することであって、前記磁性材料は、スイッチング可能な磁性配向を示す、ことと、
前記磁性材料の近傍に、アトラクタ材料を形成することであって、前記アトラクタ材料は、前記磁性材料の拡散可能な化学種に対する化学親和力を有する、ことと、
前記磁性材料から前記アトラクタ材料へ、前記拡散可能な化学種を送達することと、
を含む前構造を形成することと、
前記前構造から磁気セルコア構造を形成することと、
を含み、
酸化物材料と他の酸化物材料との間に磁性材料を形成することは、
基板の上に金属を形成することと、
前記酸化物材料を形成するために、前記金属を酸化することと、
を含み、
前記磁性材料の近傍にアトラクタ材料を形成することは、前記金属を酸化する前に、前記金属に隣接して、前記アトラクタ材料を形成することを含み、
前記酸化材料を形成するために、前記金属を酸化することは、前記アトラクタ材料を、酸化環境に暴露することを含む、
磁気メモリセルを形成する方法。 - 前記基板の上に前記金属を形成することは、前記基板の上にマグネシウムを形成することを含み、
前記酸化物材料を形成するために前記金属を酸化することは、酸化マグネシウムを形成するために前記マグネシウムを酸化することを含む、
請求項1に記載の方法。 - 前記磁性材料から前記アトラクタ材料に前記拡散可能な化学種を送達することは、前記磁性材料を欠乏磁性材料に変換し、
前記欠乏磁性材料を結晶化することを更に含む、
請求項1又は2に記載の方法。 - 前記磁性材料から前記アトラクタ材料に前記拡散可能な化学種を送達することは、前記磁性材料、前記酸化物材料、及び前記アトラクタ材料をアニールすることを含む、
請求項1〜3のいずれか1項に記載の方法。 - 前記磁性材料から前記アトラクタ材料に前記拡散可能な化学種を送達することは、前記磁性材料から前記アトラクタ材料にボロンを送達することを含む、
請求項1〜4のいずれか1項に記載の方法。 - 前記アトラクタ材料は、タンタル、タングステン、ハフニウム、ジルコニウム、それらの化合物、及びそれらの組み合わせのうちの少なくとも1つを含む、
請求項1〜5のいずれか1項に記載の方法。 - 前記磁性材料は、コバルト鉄ボロン(CoFeB)材料を含む、
請求項1〜6のいずれか1項に記載の方法。 - 前記磁性材料から形成される磁性領域は、bcc(001)結晶構造を有する、
請求項1〜7のいずれか1項に記載の方法。 - 前記磁気セルコア構造を有するメモリセルは、100%より大きい、トンネル磁気抵抗を有する、
請求項1〜8のいずれか1項に記載の方法。 - 前記アトラクタ材料は、金属、または、金属化合物のみからなる、
請求項1〜9のいずれか1項に記載の方法。 - 前記磁性材料は、垂直なスイッチング可能な磁性配向を示す、
請求項1〜10のいずれか1項に記載の方法。 - 前記メモリセルは、周辺デバイスと動作可能に通信する、
請求項1〜11のいずれか1項に記載の方法。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US14/030,763 | 2013-09-18 | ||
US14/030,763 US9608197B2 (en) | 2013-09-18 | 2013-09-18 | Memory cells, methods of fabrication, and semiconductor devices |
PCT/US2014/054690 WO2015041890A1 (en) | 2013-09-18 | 2014-09-09 | Memory cells, methods of fabrication, and semiconductor devices |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2016537825A JP2016537825A (ja) | 2016-12-01 |
JP6212646B2 true JP6212646B2 (ja) | 2017-10-11 |
Family
ID=52667228
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2016543925A Active JP6212646B2 (ja) | 2013-09-18 | 2014-09-09 | メモリセル、製造方法、及び、半導体デバイス |
Country Status (7)
Country | Link |
---|---|
US (4) | US9608197B2 (ja) |
EP (1) | EP3047487B1 (ja) |
JP (1) | JP6212646B2 (ja) |
KR (1) | KR101849863B1 (ja) |
CN (1) | CN105593941B (ja) |
TW (1) | TWI627769B (ja) |
WO (1) | WO2015041890A1 (ja) |
Families Citing this family (40)
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US9007818B2 (en) | 2012-03-22 | 2015-04-14 | Micron Technology, Inc. | Memory cells, semiconductor device structures, systems including such cells, and methods of fabrication |
US9054030B2 (en) | 2012-06-19 | 2015-06-09 | Micron Technology, Inc. | Memory cells, semiconductor device structures, memory systems, and methods of fabrication |
KR102078849B1 (ko) * | 2013-03-11 | 2020-02-18 | 삼성전자 주식회사 | 자기저항 구조체, 이를 포함하는 자기 메모리 소자 및 자기저항 구조체의 제조 방법 |
US9379315B2 (en) | 2013-03-12 | 2016-06-28 | Micron Technology, Inc. | Memory cells, methods of fabrication, semiconductor device structures, and memory systems |
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US9142756B2 (en) * | 2013-09-06 | 2015-09-22 | Makoto Nagamine | Tunneling magnetoresistive element having a high MR ratio |
US9240547B2 (en) | 2013-09-10 | 2016-01-19 | Micron Technology, Inc. | Magnetic tunnel junctions and methods of forming magnetic tunnel junctions |
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