CN102610742B - 磁性随机存取存储器及其制造方法 - Google Patents
磁性随机存取存储器及其制造方法 Download PDFInfo
- Publication number
- CN102610742B CN102610742B CN201110274938.9A CN201110274938A CN102610742B CN 102610742 B CN102610742 B CN 102610742B CN 201110274938 A CN201110274938 A CN 201110274938A CN 102610742 B CN102610742 B CN 102610742B
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- CN
- China
- Prior art keywords
- layer
- insulating film
- magnetization
- gate electrode
- gate insulating
- 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.)
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 22
- 230000005415 magnetization Effects 0.000 claims abstract description 68
- 239000000758 substrate Substances 0.000 claims abstract description 63
- 239000004065 semiconductor Substances 0.000 claims abstract description 28
- 239000010410 layer Substances 0.000 claims description 187
- 238000009792 diffusion process Methods 0.000 claims description 41
- 238000009825 accumulation Methods 0.000 claims description 33
- 238000000034 method Methods 0.000 claims description 29
- 239000011229 interlayer Substances 0.000 claims description 22
- 230000005389 magnetism Effects 0.000 claims description 9
- 230000004888 barrier function Effects 0.000 claims description 7
- 230000005303 antiferromagnetism Effects 0.000 claims description 3
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 53
- 229910052710 silicon Inorganic materials 0.000 description 53
- 239000010703 silicon Substances 0.000 description 53
- 230000000694 effects Effects 0.000 description 42
- 239000000956 alloy Substances 0.000 description 18
- 229910045601 alloy Inorganic materials 0.000 description 17
- 239000000463 material Substances 0.000 description 10
- 238000001020 plasma etching Methods 0.000 description 10
- 229910052697 platinum Inorganic materials 0.000 description 7
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 6
- 230000015572 biosynthetic process Effects 0.000 description 6
- 229910052742 iron Inorganic materials 0.000 description 6
- 229910052763 palladium Inorganic materials 0.000 description 6
- 230000008569 process Effects 0.000 description 6
- 229910052814 silicon oxide Inorganic materials 0.000 description 6
- 229910052721 tungsten Inorganic materials 0.000 description 6
- 229910052751 metal Inorganic materials 0.000 description 5
- 239000002184 metal Substances 0.000 description 5
- 229910052759 nickel Inorganic materials 0.000 description 5
- 238000004544 sputter deposition Methods 0.000 description 4
- 229910052715 tantalum Inorganic materials 0.000 description 4
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 3
- 230000008859 change Effects 0.000 description 3
- 229910052804 chromium Inorganic materials 0.000 description 3
- 229910052802 copper Inorganic materials 0.000 description 3
- 238000005468 ion implantation Methods 0.000 description 3
- 229910052741 iridium Inorganic materials 0.000 description 3
- 229910052707 ruthenium Inorganic materials 0.000 description 3
- 229910019236 CoFeB Inorganic materials 0.000 description 2
- 229910018979 CoPt Inorganic materials 0.000 description 2
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 2
- 229910052735 hafnium Inorganic materials 0.000 description 2
- 229910052758 niobium Inorganic materials 0.000 description 2
- 229910052762 osmium Inorganic materials 0.000 description 2
- 229910021420 polycrystalline silicon Inorganic materials 0.000 description 2
- 229920005591 polysilicon Polymers 0.000 description 2
- 229910052718 tin Inorganic materials 0.000 description 2
- 229910052719 titanium Inorganic materials 0.000 description 2
- 229910052720 vanadium Inorganic materials 0.000 description 2
- 229910052726 zirconium Inorganic materials 0.000 description 2
- 229910003321 CoFe Inorganic materials 0.000 description 1
- 229910000684 Cobalt-chrome Inorganic materials 0.000 description 1
- 229910052692 Dysprosium Inorganic materials 0.000 description 1
- 229910015136 FeMn Inorganic materials 0.000 description 1
- 229910015187 FePd Inorganic materials 0.000 description 1
- 229910005335 FePt Inorganic materials 0.000 description 1
- 229910052688 Gadolinium Inorganic materials 0.000 description 1
- 229910003289 NiMn Inorganic materials 0.000 description 1
- 229910019041 PtMn Inorganic materials 0.000 description 1
- 229910052771 Terbium Inorganic materials 0.000 description 1
- 238000005229 chemical vapour deposition Methods 0.000 description 1
- 239000010952 cobalt-chrome Substances 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005530 etching Methods 0.000 description 1
- 230000005669 field effect Effects 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000012212 insulator Substances 0.000 description 1
- 238000010884 ion-beam technique Methods 0.000 description 1
- 238000003475 lamination Methods 0.000 description 1
- 229910052748 manganese Inorganic materials 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 238000001259 photo etching Methods 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 229910052702 rhenium Inorganic materials 0.000 description 1
- 229910052703 rhodium Inorganic materials 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 229910052723 transition metal Inorganic materials 0.000 description 1
- 150000003624 transition metals Chemical class 0.000 description 1
- 230000005641 tunneling Effects 0.000 description 1
Classifications
-
- 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
- G11C11/165—Auxiliary circuits
- G11C11/1659—Cell access
-
- 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
-
- 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
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10B—ELECTRONIC MEMORY DEVICES
- H10B61/00—Magnetic memory devices, e.g. magnetoresistive RAM [MRAM] devices
- H10B61/20—Magnetic memory devices, e.g. magnetoresistive RAM [MRAM] devices comprising components having three or more electrodes, e.g. transistors
- H10B61/22—Magnetic memory devices, e.g. magnetoresistive RAM [MRAM] devices comprising components having three or more electrodes, e.g. transistors of the field-effect transistor [FET] type
-
- 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
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Computer Hardware Design (AREA)
- Manufacturing & Machinery (AREA)
- Mram Or Spin Memory Techniques (AREA)
- Hall/Mr Elements (AREA)
Abstract
Description
Claims (15)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2011011357A JP2012156167A (ja) | 2011-01-21 | 2011-01-21 | 磁気ランダムアクセスメモリ及びその製造方法 |
JP011357/2011 | 2011-01-21 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN102610742A CN102610742A (zh) | 2012-07-25 |
CN102610742B true CN102610742B (zh) | 2015-04-22 |
Family
ID=46527991
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201110274938.9A Active CN102610742B (zh) | 2011-01-21 | 2011-09-16 | 磁性随机存取存储器及其制造方法 |
Country Status (4)
Country | Link |
---|---|
US (1) | US8592882B2 (zh) |
JP (1) | JP2012156167A (zh) |
KR (1) | KR20120085135A (zh) |
CN (1) | CN102610742B (zh) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR101713871B1 (ko) * | 2013-03-14 | 2017-03-09 | 삼성전자주식회사 | 자기 저항 메모리 장치 및 그 제조 방법 |
US10115891B2 (en) * | 2015-04-16 | 2018-10-30 | Toshiba Memory Corporation | Magnetoresistive memory device and manufacturing method of the same |
US11283005B2 (en) * | 2019-09-30 | 2022-03-22 | Taiwan Semiconductor Manufacturing Company, Ltd. | Spacer scheme and method for MRAM |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1495793A (zh) * | 2002-09-10 | 2004-05-12 | ��ʽ���綫֥ | 磁随机存取存储器 |
CN1606093A (zh) * | 2003-10-10 | 2005-04-13 | 株式会社日立制作所 | 使用转矩的非易失性磁存储单元和使用它的随机存取磁存储器 |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6881351B2 (en) * | 2003-04-22 | 2005-04-19 | Freescale Semiconductor, Inc. | Methods for contacting conducting layers overlying magnetoelectronic elements of MRAM devices |
US7345911B2 (en) * | 2006-02-14 | 2008-03-18 | Magic Technologies, Inc. | Multi-state thermally assisted storage |
US20080246082A1 (en) * | 2007-04-04 | 2008-10-09 | Force-Mos Technology Corporation | Trenched mosfets with embedded schottky in the same cell |
JP2009049101A (ja) | 2007-08-16 | 2009-03-05 | Sony Corp | 磁気メモリ素子及び磁気メモリ装置 |
JP2009239121A (ja) * | 2008-03-27 | 2009-10-15 | Toshiba Corp | 磁気抵抗効果素子及び磁気ランダムアクセスメモリ |
JP5435026B2 (ja) | 2009-05-19 | 2014-03-05 | 富士電機株式会社 | 磁気メモリ素子およびそれを用いる記憶装置 |
-
2011
- 2011-01-21 JP JP2011011357A patent/JP2012156167A/ja active Pending
- 2011-09-15 KR KR1020110092999A patent/KR20120085135A/ko not_active Application Discontinuation
- 2011-09-16 US US13/235,223 patent/US8592882B2/en active Active
- 2011-09-16 CN CN201110274938.9A patent/CN102610742B/zh active Active
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1495793A (zh) * | 2002-09-10 | 2004-05-12 | ��ʽ���綫֥ | 磁随机存取存储器 |
CN1606093A (zh) * | 2003-10-10 | 2005-04-13 | 株式会社日立制作所 | 使用转矩的非易失性磁存储单元和使用它的随机存取磁存储器 |
Also Published As
Publication number | Publication date |
---|---|
CN102610742A (zh) | 2012-07-25 |
US8592882B2 (en) | 2013-11-26 |
JP2012156167A (ja) | 2012-08-16 |
US20120187456A1 (en) | 2012-07-26 |
KR20120085135A (ko) | 2012-07-31 |
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Legal Events
Date | Code | Title | Description |
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C06 | Publication | ||
PB01 | Publication | ||
C10 | Entry into substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
GR01 | Patent grant | ||
TR01 | Transfer of patent right |
Effective date of registration: 20170801 Address after: Tokyo, Japan Patentee after: TOSHIBA MEMORY Corp. Address before: Tokyo, Japan Patentee before: Toshiba Corp. |
|
TR01 | Transfer of patent right | ||
CP01 | Change in the name or title of a patent holder |
Address after: Tokyo, Japan Patentee after: TOSHIBA MEMORY Corp. Address before: Tokyo, Japan Patentee before: Japanese businessman Panjaya Co.,Ltd. Address after: Tokyo, Japan Patentee after: Kaixia Co.,Ltd. Address before: Tokyo, Japan Patentee before: TOSHIBA MEMORY Corp. |
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CP01 | Change in the name or title of a patent holder | ||
TR01 | Transfer of patent right |
Effective date of registration: 20211014 Address after: Tokyo, Japan Patentee after: Japanese businessman Panjaya Co.,Ltd. Address before: Tokyo, Japan Patentee before: TOSHIBA MEMORY Corp. |
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TR01 | Transfer of patent right |