TW211077B - - Google Patents
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- TW211077B TW211077B TW081100373A TW81100373A TW211077B TW 211077 B TW211077 B TW 211077B TW 081100373 A TW081100373 A TW 081100373A TW 81100373 A TW81100373 A TW 81100373A TW 211077 B TW211077 B TW 211077B
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- Taiwan
- Prior art keywords
- magnetic
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- Prior art date
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- 230000005291 magnetic effect Effects 0.000 claims description 133
- 239000000463 material Substances 0.000 claims description 46
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 claims description 22
- 229910017052 cobalt Inorganic materials 0.000 claims description 21
- 239000010941 cobalt Substances 0.000 claims description 21
- 239000000696 magnetic material Substances 0.000 claims description 20
- KJTLSVCANCCWHF-UHFFFAOYSA-N Ruthenium Chemical compound [Ru] KJTLSVCANCCWHF-UHFFFAOYSA-N 0.000 claims description 17
- 229910052707 ruthenium Inorganic materials 0.000 claims description 17
- 239000010949 copper Substances 0.000 claims description 15
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 claims description 15
- 229910052737 gold Inorganic materials 0.000 claims description 14
- 239000010931 gold Substances 0.000 claims description 14
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 11
- 230000010355 oscillation Effects 0.000 claims description 9
- 239000000758 substrate Substances 0.000 claims description 8
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 7
- 229910052741 iridium Inorganic materials 0.000 claims description 6
- GKOZUEZYRPOHIO-UHFFFAOYSA-N iridium atom Chemical compound [Ir] GKOZUEZYRPOHIO-UHFFFAOYSA-N 0.000 claims description 6
- 229910052762 osmium Inorganic materials 0.000 claims description 5
- SYQBFIAQOQZEGI-UHFFFAOYSA-N osmium atom Chemical compound [Os] SYQBFIAQOQZEGI-UHFFFAOYSA-N 0.000 claims description 5
- 239000010948 rhodium Substances 0.000 claims description 5
- 239000011651 chromium Substances 0.000 claims description 4
- 229910052742 iron Inorganic materials 0.000 claims description 4
- MHOVAHRLVXNVSD-UHFFFAOYSA-N rhodium atom Chemical compound [Rh] MHOVAHRLVXNVSD-UHFFFAOYSA-N 0.000 claims description 4
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims description 3
- 229910052804 chromium Inorganic materials 0.000 claims description 3
- 229910052751 metal Inorganic materials 0.000 claims description 3
- 239000002184 metal Substances 0.000 claims description 3
- 229910052759 nickel Inorganic materials 0.000 claims description 3
- 229910052703 rhodium Inorganic materials 0.000 claims description 3
- 230000004907 flux Effects 0.000 claims description 2
- 229910052702 rhenium Inorganic materials 0.000 claims description 2
- WUAPFZMCVAUBPE-UHFFFAOYSA-N rhenium atom Chemical compound [Re] WUAPFZMCVAUBPE-UHFFFAOYSA-N 0.000 claims description 2
- 239000007769 metal material Substances 0.000 claims 8
- 241001331845 Equus asinus x caballus Species 0.000 claims 2
- WPBNNNQJVZRUHP-UHFFFAOYSA-L manganese(2+);methyl n-[[2-(methoxycarbonylcarbamothioylamino)phenyl]carbamothioyl]carbamate;n-[2-(sulfidocarbothioylamino)ethyl]carbamodithioate Chemical compound [Mn+2].[S-]C(=S)NCCNC([S-])=S.COC(=O)NC(=S)NC1=CC=CC=C1NC(=S)NC(=O)OC WPBNNNQJVZRUHP-UHFFFAOYSA-L 0.000 claims 2
- 229910001020 Au alloy Inorganic materials 0.000 claims 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims 1
- 229910000831 Steel Inorganic materials 0.000 claims 1
- QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical compound [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 claims 1
- 229910052802 copper Inorganic materials 0.000 claims 1
- 239000003353 gold alloy Substances 0.000 claims 1
- RZDQHXVLPYMFLM-UHFFFAOYSA-N gold tantalum Chemical compound [Ta].[Ta].[Ta].[Au] RZDQHXVLPYMFLM-UHFFFAOYSA-N 0.000 claims 1
- -1 grandma Chemical compound 0.000 claims 1
- 239000007788 liquid Substances 0.000 claims 1
- 230000005389 magnetism Effects 0.000 claims 1
- 239000000203 mixture Substances 0.000 claims 1
- 239000010959 steel Substances 0.000 claims 1
- 239000000126 substance Substances 0.000 claims 1
- 229910052715 tantalum Inorganic materials 0.000 claims 1
- GUVRBAGPIYLISA-UHFFFAOYSA-N tantalum atom Chemical compound [Ta] GUVRBAGPIYLISA-UHFFFAOYSA-N 0.000 claims 1
- 229910052726 zirconium Inorganic materials 0.000 claims 1
- 239000010410 layer Substances 0.000 description 71
- 230000000694 effects Effects 0.000 description 7
- 230000005294 ferromagnetic effect Effects 0.000 description 5
- 230000033228 biological regulation Effects 0.000 description 4
- 239000011229 interlayer Substances 0.000 description 4
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000004888 barrier function Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 230000005415 magnetization Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000000750 progressive effect Effects 0.000 description 2
- 125000006850 spacer group Chemical group 0.000 description 2
- 208000019901 Anxiety disease Diseases 0.000 description 1
- 244000025254 Cannabis sativa Species 0.000 description 1
- 235000012766 Cannabis sativa ssp. sativa var. sativa Nutrition 0.000 description 1
- 235000012765 Cannabis sativa ssp. sativa var. spontanea Nutrition 0.000 description 1
- 239000004215 Carbon black (E152) Substances 0.000 description 1
- 244000276331 Citrus maxima Species 0.000 description 1
- 229910001030 Iron–nickel alloy Inorganic materials 0.000 description 1
- 240000002853 Nelumbo nucifera Species 0.000 description 1
- 235000006508 Nelumbo nucifera Nutrition 0.000 description 1
- 235000006510 Nelumbo pentapetala Nutrition 0.000 description 1
- 241000218206 Ranunculus Species 0.000 description 1
- 206010041349 Somnolence Diseases 0.000 description 1
- 240000000038 Ziziphus mauritiana Species 0.000 description 1
- 235000006545 Ziziphus mauritiana Nutrition 0.000 description 1
- 235000008529 Ziziphus vulgaris Nutrition 0.000 description 1
- KZNMRPQBBZBTSW-UHFFFAOYSA-N [Au]=O Chemical compound [Au]=O KZNMRPQBBZBTSW-UHFFFAOYSA-N 0.000 description 1
- QXZUUHYBWMWJHK-UHFFFAOYSA-N [Co].[Ni] Chemical compound [Co].[Ni] QXZUUHYBWMWJHK-UHFFFAOYSA-N 0.000 description 1
- 210000000941 bile Anatomy 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 235000009120 camo Nutrition 0.000 description 1
- 235000005607 chanvre indien Nutrition 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000002079 cooperative effect Effects 0.000 description 1
- 230000000875 corresponding effect Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 239000002355 dual-layer Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009313 farming Methods 0.000 description 1
- 239000003302 ferromagnetic material Substances 0.000 description 1
- 229910001922 gold oxide Inorganic materials 0.000 description 1
- 229910052734 helium Inorganic materials 0.000 description 1
- 239000001307 helium Substances 0.000 description 1
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 description 1
- 239000011487 hemp Substances 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- UGKDIUIOSMUOAW-UHFFFAOYSA-N iron nickel Chemical compound [Fe].[Ni] UGKDIUIOSMUOAW-UHFFFAOYSA-N 0.000 description 1
- 238000010584 magnetic trap Methods 0.000 description 1
- 230000003204 osmotic effect Effects 0.000 description 1
- 238000010587 phase diagram Methods 0.000 description 1
- 239000011241 protective layer Substances 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 238000006748 scratching Methods 0.000 description 1
- 230000002393 scratching effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000009891 weiqi Substances 0.000 description 1
Classifications
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- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
- G11B5/127—Structure or manufacture of heads, e.g. inductive
- G11B5/33—Structure or manufacture of flux-sensitive heads, i.e. for reproduction only; Combination of such heads with means for recording or erasing only
- G11B5/39—Structure or manufacture of flux-sensitive heads, i.e. for reproduction only; Combination of such heads with means for recording or erasing only using magneto-resistive devices or effects
- G11B5/3903—Structure or manufacture of flux-sensitive heads, i.e. for reproduction only; Combination of such heads with means for recording or erasing only using magneto-resistive devices or effects using magnetic thin film layers or their effects, the films being part of integrated structures
-
- 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
- G01R33/093—Magnetoresistive devices using multilayer structures, e.g. giant magnetoresistance sensors
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B82—NANOTECHNOLOGY
- B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
- B82Y10/00—Nanotechnology for information processing, storage or transmission, e.g. quantum computing or single electron logic
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B82—NANOTECHNOLOGY
- B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
- B82Y25/00—Nanomagnetism, e.g. magnetoimpedance, anisotropic magnetoresistance, giant magnetoresistance or tunneling magnetoresistance
-
- 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
-
- 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
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
- G11B5/127—Structure or manufacture of heads, e.g. inductive
- G11B5/33—Structure or manufacture of flux-sensitive heads, i.e. for reproduction only; Combination of such heads with means for recording or erasing only
- G11B5/39—Structure or manufacture of flux-sensitive heads, i.e. for reproduction only; Combination of such heads with means for recording or erasing only using magneto-resistive devices or effects
- G11B2005/3996—Structure or manufacture of flux-sensitive heads, i.e. for reproduction only; Combination of such heads with means for recording or erasing only using magneto-resistive devices or effects large or giant magnetoresistive effects [GMR], e.g. as generated in spin-valve [SV] devices
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Nanotechnology (AREA)
- Crystallography & Structural Chemistry (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- Mathematical Physics (AREA)
- Theoretical Computer Science (AREA)
- Power Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Hall/Mr Elements (AREA)
- Measuring Magnetic Variables (AREA)
- Investigating Or Analyzing Materials By The Use Of Magnetic Means (AREA)
- Magnetic Heads (AREA)
Description
A6
五、發明説明( {請先聞讀背面之注意事項再填寫本页) 詳ffl銳呷 雄明莆醫 發明醅_| 本發明一般係闞於磁轉換器Μ自磁性媒Μ讀出資訊,而 特定者你醐於一種改良之磁阻讀出轉換器。 S M g ^ Ι& ΗΗ 早前技藝揭示一種磁性轉換器稱之為磁阻性(MR-magnetoresistive sensor)® _器或磁頭經顯示能自磁表 面以極大埭性密度鑲出資料。MR感测器經由自磁性材料製 成之讀出元件之《阻改變而偵测磁場信號Μ作為受元件感 測磁通量與方向之函數。此類早前技藝MR感测器係基於相 異性磁阻(AMR-anisotropic ·38ηβΐ〇ί*β3ί3ΐ;ίνβ)效應而麵 作*其中電阻成份依據磁化強度與《流流動方向之間角度 之餘弦平方(COS2)而變動。此類HR感澜器基於AMR效應邐 \ 作嫌使此效應僅產生極小百分比,之改變於《阻時^然。 最近•獲致擴大MR败益技術之轘告烴已出版。諸出販之 —* ^ Enhanced Magnetoresistance in Layered
Magnetic Structures with Antiferroaagnetic Interlayer Exchange M反嫌磁性曆際交換擴壜磁阻質於 )化磁性结構# ,由G. Binasch,等人所撰於"物霣之評 鎗# B. 39卷第4828頁(1989年)*銳明一種靥化磁性结 構產生由磁化之逆平行對準所引起擴增之HR效應。然而, 所霈Μ獲得此類電阻改變之飽和埸太高且效應極非線性故 而並非宜於產生實用之MR感测器。 甲 4 (210X297 公潘) 五、發明説明(9) 4. 經濟部十央桴準而A工消许合作社印奴 另一出版,''Layered Magnetic Structures: Exchange Coupling of Feromagnetic Layers Across Interlayers曆化之磁结構:跨於層際銷磁層之交換耦合 ",P. Grunbe「g 等人所撰,MRS Inti. Mtg. Ad\/· Mats. ,第10卷第255頁(1989年)其研究日期溯自1960年代顯 示鐵磁耦合之於此一糸统係Μ磁性層之累進分離而單調衮 調於廣範圍之糸统。 早前技藝並未顯示此一多層化糸统•其中磁阻高及其中 磁場低至足以用作MR感測器。 發明摘要 因此,產生具有大磁阻筲之MR感测器即為本發明之主要 目的。 依據本發明包含構成於基體之多層结構;基體包含交替 層次之撖磁材料與非锇性金鼷材料,此雄磁材料與非磁性 材料構成雙層體而展現其特性即多層结構之磁阻宵係依據 非磁化材料層面之厚度之函數而振盪。由流流動經由MR感 測器產生,以及M R感測器阻力性之變動則係依據受感測磁 埸之函数而受感測。 紹選擇非磁性層之厚度等於對憋於磁阻中之峰值厚度· 即可獲致特別大S之跑和磁阱而柢迮超過&51於室溫以i 11 0¾於4 · 2K ( K = Ke 1 v i n絕對溫度)之數值,此係較任何Μ 往所觀察者為大。 本發明之上述與其它目的,特色與優點可自如列示於附 圈之本發明較佳具艄實施例之較特定説明而益明晰。 (請先閲讀背而之注意事項洱蜞窍本頁) 本紙張尺度边用中B困家榀毕(CNS)>f 4規格(210X297公;¢) -=-4-=- 五、發明説明(3)
Λ 6 Ιί G Μ濟部屮央標準而Α工消价合作杜印¾ 圖1為一搮繪圖示依據早前技藝之教學作為包含由非磁 性隔Η層所分隔鐵磁層结構中非磁性隔Η層厚度函數之飽 和磁阻。 圖2為一示依據本發明之一族糸相闞多層结構之飽和磁 阻對非磁性層之厚度之標繪圖。 圖3示依據本發明包含雙層结構磁阻感測器之特定具體 S施例之側視圖。 圖4為一示依據本發明之特定具體實施例雙層結構之飽 和磁阻對非磁性層之厚度之標繪圖。 圖5示依據本發明包含四層结構磁阻感測器之特定具體 實施例之側視圖。 圖知為一示依據本發明之特定具體實拖例四層结構之飽 和磁阻對非磁性層之厚度之標繪圖。 圖7示依據本發明包含雙層结構磁阻感測器之另一交替 之具體實施例之側視圖。 圖8為示於圖7中四相似结構型式之磁阻對同平面之標 繪圖。 /跚9為示於圖2但取於4 . 2 Κ溫度之族系结檎飽和磁阳對 非磁性層厚度之搮繪圖。 ϋ丨1 0示依據本發明包含四阍结惝磁阳感测器之另一交替 具艄茛施例之側視圖丨。 _11為示於圖10中之结構型式之蔽和JT1對非磁性層厚 度之搮示關。 酬1 2為示於圖中六代表性结構型式之磁砠對同平面磁 (請先閲1?背而之注意事項洱填寫木頁) 裝· 訂 本紙尺度边用中《國家橒準(CNS)TM規彷(2丨0X297公放) 211077 Λ fi I? 0 五、發明説明(4) 經沭部屮央樑準而Α工消"合作社印奴 埸一系列之標给圖(ai — <f>。 HM 3為示於圖7中结樓型忒之磁昍對非磁件囿厚麽之槽 IR疆〇 圖k為示於圖:z_中结構型式之磁阻對磁場之標繪圖,係 示於低磁場之高磁阻。 圖1_5_為示於圖1中三结構型式之磁阻對同平面磁場但具 鐵磁層可變厚度之標鑰圖。 龄住亘髂當_例夕銳明 依據本發明提供一種包含磁性與非磁性材料之交替層之 金屬多層结構。較之於早前技苞结構,此種金屬多層结構 產生意外之高筲飽和磁阻•且對某些材料而言,於此類结 構中之磁姐係依據非磁性層厚度之函數而變動。 如示於圖1中者,早前技藝掲示諸層化结構之飽和磁阻 係以非磁性層之厚度而單調降低。與此早前技藝所掲示者 相較,吾人經已發現即飽和磁阻例如係Μ對某些材料姐合 一如示於圖2中者一之非磁性層之厚度而變動。請注意即 磁阻係以非磁性層之厚度一於此特定具體實陁例中之9與 1 0 1 ( a n g s t:「ο πι埃,為波長單位,等於1 0 — 8匣米)間之第 一峰值,約1 9或2 0 A_之第二峰值Μ及剛超過3 0為_之第三峰 值一兩振潘。 饀使用展現此棰振盪特性之材枓·故可能藉選擇非磁性 金鼷層之厚度Κ與例如示於圖2中諸峰值之一之厚度相符 合Κ產生大改變於磁阻而橘造一補M R感測器。 依撺非磁性層厚度之函數而產生振盪於飽和磁阻強度之 (請先閲1?背而之注意事項#填舄本頁) 裝- -ΐΓ_ 線· 本紙51尺度逍用中BH家標準(CNS)T4規格(2K1X297公龙) 五、發明説明(5 ) Λ fi U 6 經沭部屮央is準而员工消tv·合作社印3i 磁性曆與非磁性層之材料姐合’可藉考慮例如由其整體相 位圖所顯示之特性而選擇。通常’此類衬料之姐合彼此並 不構成複合物,故具有一較大之混溶裂隙。 此類材料之特定實例現予列示。磁阻感測器(MR)之特定 具體實施例係示於圖3。此MR感測器10包含構成於適當基 體11之多層金靨结構具有鐵磁材料12與非磁性金靨材料 14之交替諸層次。層次12與14材料姐合所選出之數字N經 已構成K及此姐合體係Μ對感測器10供作保護層之罩蓋層 16提供。 示於圖3之本發明之持定具體實施例包含下列材料之雙 層结構: Si/48A Cu/[9A Co/Cu(tcu)]/n5〇A Cu 此结構於某些樣品中經調製為具有20雙層及於其它樣品中 則具有16雙層而諸结構之磁胆涤示於圖4。具有16雙層之 磁阻稍低,但1 6與2 0雙層结構二者之振盪刖靨相同之圖型 ,具有峰值於10· 20A左右而飼(Cu>則約略超過30埃(A )' 旁通緩衝屜與蓮蔷層縮葙磁B日之弥麻,旧磁昍之強麻可H 撰擇高gfl性之锶渐暦靼帽茜阔夕材料及鉑撰摺t齡字N之 I料—]^^.金_丄1麗.丄A止二...M.Li jc备捉」·5_ ^ 示於圖5之本發明之特定具艄萁施例包含沈楨於基艄 11之四層结構包含羝磁材料12之第一層、非磁性金饜材料 14之第一層、榭磁材料13之第二屑、以及非磁性金觸材料 15之第二層。經選出數字Ν之材料姐合之層次12、13、 -—-=J-=_ 本紙张尺度边用中a Η家楳準(CNS) T4規怙(210x297公¢) (請先閲1?背而之注意事項#填寫本頁)· 訂_ 線- 2110"* Λ 6 Π 6 五、發明説明(6) 14與15業已構成而组合體乃Μ罩蓋層16提供。 依據本發明之四層结構之持定具體實胞例包含下列结構 經濟部中央梂準·而A工消赀合作杜印製
Si/ [ColOA 請注意即圖6 峰值剛在10與 此外業經發 之效應實質上 相似於示於圈 1 8係在構成第 16之沈積後, 測器结構、電 圖8示四檷 C u (鋦)但卻 戡)與Cu 。此 。諸差別係由 薄膜之生長形 緩衝層材料 必霈不能與基 為扁平狀蓋因 亦即,於虽一 K降低旁通效 衝稱可能包含 铑)、Ir (銥 /Cu (tcu ) /N i 11 . 5 A /Cu (tcu ) ] η 之檷鑰圈中此结構顯示對厚度之明 20埃(A )之下。 現於Μ上說明所觀察之層化结構中 可藉沈積某些緩衝層於其上而擴增 3中者之雙層结構其屬例外者乃為 —锇磁層12之前提供於基體11。随 電引線20與22經提供W構成電路圖 流源24 Μ及感測設施26之間。 繪圈之雙暦结構具有相同数宇Co ( 具有不同姐合之陣壁層18與罩蓋層 類標繪圖乃示飽和磁阻中之變動超 於縮減之霉流旁通於緩銜層Μ及藉 態所致。 必需選擇於最佳之磁狙。首先之考 體材料起反應作用,其次之需求則 此顯-重要者,鼓H非磁性隔片 峰值之鄱圻)。此外,媛衡If應儘 懕至最小且同時保証鍰断層為一連 例如 F e (鏹 > ' Ru ( IT ) 、C u (飼 )、或Cr (鉻),而Fe適當之厚度 確振盪其 巨大磁阻 。圖7示 緩衡層 罩蓋層 型於M R感 鈷)與 16 之 Fe ( 遇因素三 改變结構 慮則為其 為其必需 凰.11丄 可能之薄 續層。媛 )' Rh ( 包含約 (請先閱請背而之注意事項洱填寫本頁) 裝· 訂_ 線 表紙51c尺度边用中國《家捣準(CNS)TM規格(210X297公放) —.X — 五、發明説明(7) Λ fi Η 6 經尔部屮央標準而A工消赀合作社印51 15至50埃(A )之範圍。 圖2之標繪画為具有媛衝结構之特定實例且具有下列结 構: S i/Fe45 A /[Co 10 A /Cu (teu ) ] η 繪製於圖2中之資料係取於室溫、300° K,且資料係自 同一结構;但運作於氦溫度(4.2K)者則示於圓9 (同頁次 )。此兩標编圖均相似且均顯示磁阻中之峰值與溫度無閭 Ο 圖10示相似於示於圖5中之包含四層结構之MR感測器, 所不同者乃為緩衝層18係在構成第一锇磁層12之前提供於 基體11。具有媛衝層之四層结搆之特定具體實施例包含下 列结構: Si/RulO〇A / [C0I6A / Ru(t„)/Hi45A / Ru(t»)]i〇/Ru50 A 飽和磁埸對此结構媛衝層18之厚度示於圚11。請注意即具 有數峰值於飽和磁埸低於10A、低於20AM及接近30A。 此標繪圖顯示飽和磁埸與飽和磁阻具有緊密關係而其強度 則依據R u (釕)鍰衝層之厚度與約8 - 1 0 A階段之函數而振 盪ΰ念非磁忡隔Η曆厘麻夕朐和磁饨之赂侑較磁Β日中蛏馆 之 農-為磁 1—中之魄i.lias 吐庞D偽約〗.7 至2 :磁E日中夕¢8 m刖捋約】/ t。曄觔〇 圖12示含可變飼隔片層厚度之六相间 Co /Cu (鈷/鐧) 雙廣结構磁阻對磁埸曲線。此结構包含: Si/Fe4〇A / [ColOA /Cu(teu)]1〇 ° (請先閲請背而之注意事項#塡寫木頁) 裝. 訂· 線. 本紙張尺度边用中《國家標準(CNS)IM規怙(210x297公;《:) 2ϋ°ι Λ β ΙΜ3 五、發明説明(3) 經濟部屮央標準:?卩工消奸合作社印31 顙然,磁阻之強度對5.3A之Cu暦厚度極小,但對9.3 A 厚度者則大。K漸進Cu層厚度磁阻之強度則如示於圖12中 者自小值至大值而振通。 此外亦可得見者即所需K產生磁阻響懕之磁場亦按以層 之厚度而麥動。例如,於9.3ACu之第一峰值具有約553; 之磁阻。然而,所需之磁埸則為千〇e ( Oersted奥斯 特,磁場強度單位)。於19.lACu之第二峰值具有約45¾ 之較低磁姐,與亦約〜.5千Oe之較低磁埸°藉使用此一資 料,即可實施選擇Cu層厚度Μ理作於最大磁阻之第一峰值 ,或於大磁阻但於較低磁埸之第二峰值。 匯〗·?元MR哺涮装_市直《啻_例之資料具有下.¾结構: S i / R U S 0 Λ /「Γ ο 1 〇 A / Γ Μ (f. ^ n ) _LnZR-iLL5_i^ 吐資料示磁Β日中^法垢》,而諸振播置質上.受H.於約 60A之锢層B麻。於筘士夕痂匾厚用1 ·磁砠刖按逆緬層風 度寒動。此外吐资枓示离逋轺柚400埃(A)搔大飼屏厚麻 之主..值__磁阳。_ 於更低磁埸產生約28X較低磁昭结構之實例示於圖14° 此结構包含: S.i,5J!A_l_u/「10 八 Γ〇/17.“ Cu12〇15 A Rll W定不同材枓驵合之廣泛之宵例頭示含非磁性曆厚度胞 和磁阻振盪之特性。特定材料姐合包含卩e / C「(锇/鉻)與 Co/C「(鈷/鉻)。(:11通常與大多數娥磁性材枓配合諸如: F e / R u (锹 / 釕)、C 〇 / R u (鈷 / 釕)、f / ({ u (鎳 / 釕)、 N i F e / R_u_(鐵化_ /釕)、N丨C 0 / |^(鈷化辣/釕> 、 (請先閲請背而之注意事項#蜞寫本頁)· 裝· 線· 本紙張尺度边用中《因家楳準(CNS)T4規彷(210><297公;¢) 21i〇'V7
Λ (; Ιϊ G 五、發明説明(9 )
經部屮央梂準局A工消伢合作社印M
Fe/Ru/CO/Ru (鐵 / 釕 / 鈷 / 釕)^ Co/Ru/Ni/Ru (鈷 / 釘 /鎳/釕)、C 〇 / R u / N i C 〇 / R u (鈷/釕/鈷化鎳/釕)、Μ 及C 〇 / R u / N iFe/Ru(鈷/釕/鐵化鎳/釕)之類。Ir (銥) 、Re (铼)、以及Rh (铑)亦通常與大多數戡磁性材料相 配合。 此外鐵磁性層之厚度亦具影響於磁阻且能此顯示豳磁性 層之厚度懕為儘量之薄。然而圖示三雙層结構横向磁 阻對同平面磁場之形式: Si/Fe40A [Co(t〇〇)/Cu9.3A ]ie/Cul9A 諸曲線顯示大變動於含鐵磁性層厚度之磁阻與磁場二者。 當鈷層厚度增加超過〜10A時•飽和磁阻之強度乃約按逆 鈷層厚度而降低。 吾人經已說明使用锇磁性材料與非磁性金靨材料姐合之 MR感測器•其所展露之特性乃為多層化结構之磁阻係依據 非磁性材料層厚度之函數而振盪。藉遴選非磁性材枓之厚 度至對應於磁阻峰值之厚度,超過60¾之極大磁阻即可獲 得。 雖則本發明藉參考其較佳具體宵拖例已持定顯示與說明 *然由精於此#諸君所可瞭解者即各揷於形式及妞酣之其 它改變可在不違及本發明之粘神與内容F而宵拖。 (請先閲1?背而之注意事項Λ-填寫本頁) 裝. 訂- 線 本紙5fc尺度边用中國《家標準(CNS)TM規怙(210>:297公龙)
Claims (1)
- 21ι4> ίαΐη 3 觅黍利中,謂·》 修正年I月) A7 B7 C7 D7 經濟部中央橾準局印裝 ' 膽x£ 六、中議專利範面 本 -:-._二 ---------------------------------〜 1. —種磁阻式感測器,包含: 一基髏;以及 一磁阻層,形成在基體上,該磁阻層包含若干Ν雙層» *各雙層體包含一層嫌磁性材料與一靥具有預定厚度之 非磁性金屬材料,該多層構造之磁阻值展現其特性,使 其大小依據非磁性金鼸材料«厚度|之函數而振徽,該非 磁性金鼷材料曆之厚度|係選定為相當於振邇函數之峰值 〇 2. —種磁阻式感澜器,包含 一基體;以及 一磁阻層,形成在該基«上*該磁阻曆包含若干忖四曆 體,各四層體包含一層第一嫌I磁性材料、一第一非磁性 金靨材料層、一第二嫌磁性材料履與一第二非磁性金羼 材料f,該多層構造之磁阻值展現其特性,使其值Κ非 磁性釜屬材料曆之厚度為函《闢係而振盪,第一、二曆 非磁性金屬材料之厚度偽選定為~相當於振盪函數之峰值 〇 / : 3. 根據申請専利範鼴第2Γ項之班阻式感測器,更包含一緩 衡靥,形成在基《與磁阻層之間之基》上。 4;;根據申請専利範画第3項之磁姐式感测器,其中該級銜 靥係由鐵、鋦、鉻、釕、姥、銥與睞所姐成之族群中選 定之材料所形成。 5. 根據申謫專利範圈第2項之磁狙式感澜器•其中該磁阻 履包含十俚由該級衡層所構成之四賵鼉。 (請先《讀背面之注意事項再填穽本页) .装· .打· •線. f 4(210X297 公廣) 21107 A7 B7 C7 D7 Μ、申請專利範面 經濟部中央搮準局印製 6· 根據申請專利範圃第2項之磁阻式感澜器,更包含一表 蓋層,覆蓋包覆於磁阻曆上。 1' 根據申謫專利範園第6項之磁阻式感澜器,其中該表蓋 層係由具有相當高電阻性之材料所形成。 δ· 根據申誚専利範圔第1項之磁阻式感測器,更包含一媛 衝靥*形成於設在基體與磁阻靥之間之基《上。 9· 根據申請専利範國第8項之磁狙式感測器,其中該嫒衢 層係由鐵、鋦、輅、釕、铑、銥與睞所姐成之該群中埋 定之材料所形成。 10·根據申請專利範園第1項之磁‘阻式感澜器•更包含一表 蓋層,覆Μ包覆於磁阻層上。 11. 根據申請専利範_第10項之磁阻式感测器,其中該表蓋 層係由具有相當高《阻性之材枓所形成。 12. 根據申請專利範園第1項之磁阻式感澜器,其中該雙層 體之數目Ν係在四十至六十之範園内。 13. 根據申請專利範_第1項之磁阻-式感测器•其中該磁阻 層包含二十個由級街曆所形成之雙層體。 14. -種多層磁性構埴,包:含 至少二雙層體•各雙曆體包含〜雄磁性材料靥與一具有 、 預定厚度之非磁性金屬材料靥•’該多靥構造之磁阻值表 現其特性,使其大小Μ非磁性金靥材料層之為函數醑 係而振通•非磁性金屬材料靥之厚度係埋定為相當於振 盪函數之峰值。 15. 根據申請.専利範第14項之多靥磁性構造,其中該振》 肀 4(210X297 公廣) {請先聞讀背面之注意事項再填坧本页) .装. ♦訂. •線. 2110 r·' A7 B7 C7 D7 六、申請專利範® 函數包含至少該多層構造之磁阻之一第一與一第二峰值 Ο 16. 根據申請專利範園第15項之多曆磁性構造*其中該非 磁性金圈層之厚度係選定為相當於振通函數之第一峰值 0 17. 根據申請專利範画第14項之多層磁性構造,其中該非 磁性金属層之厚度係«定為相當於振蠢函數之第二峰值 18. 根據申 性金颺 成之族 19. 根據申 性金靨 20. 根據申 性材枓 之材料 21. 根據申 性金鼷 22. 根據申 \ 性材料 群中所 23. —種多 請專利 材料臞 群中所 誚專利 材料餍 請專利 曆係由 而形成 請專利 材料雇 請專利 靥係由 選定之 曆磁性 範圈第14項 之厚度係由 選定之材料 範圍第18項 係由網所形 範匾第19項 鈷、嫌化辣 0 範園第18項 悌&釕所"形 範圃第21項 嫌、嫌、鈷 材料而形成 構造•包含 之多曆磁性構造,其中該非磁 銅、輅、釕、銥、铼輿铑所構 而形成彡 之多層磁性構造*其中該非磁 成。 之多曆磁性構造,其中該嫌磁 與鈷化辣所構成之族群所選定 之爹層磁性構造•矣中該非磁 成。' 之多靥磁性構造•其中該嫌磁/ 、饑化辣與鈷化鍊所姐成之族 (請先閱讀背面之注意事項再填^本頁) .St. •打· .線. 經 濟 祁 中 夫 » 準 印 裝 至少二個四曆體•每 四 層髓包含一第一嫌磁性材料臛 一第一非磁性金鼷材料層、一第二饞磁性材料曆與一 f 4(210X297 公 41) 3. 2110' A7 B7 C7 D7 六、申請專利範® 經濟部中央揉準扃印製 第二非磁性金靨材料暦*該多層構造之磁阻值所展現之 特性為其值係根據非磁性金屬材料層厚度之函數而振盪 *第一輿第二非磁性金鼷材料曆之厚度係選定為相當於 振邋函數之峰值。 24. 根據申諝專利範園第23項之多曆磁性構造,其中該振盪 數包含至少該多層構造磁阻性之第一與第二峰值。 25. 根據申請專利範圍第23項之多曆磁性構造,其中該非磁 性金颺贐之厚度係選定為相當於振盪函數之第一峰值# 26. 根據申諝専利範圍第24項之多曆磁性構造*其中該非磁 性金靨曆之厚度係選定為相當於振蜃函數之第二峰值, 27. 根據申諝專利範圔第23項之多履磁性構造,其中該非磁 性金屬材料層係由鋼、路、釕、銥、睞與鍩所姐成之族 群中選定材料而形成。 28. 根據申請專利範圏第27項之多層磁性構造,其中該非磁 性金羼材料層係由銅所形成。 29. 根據申請專利範_第28項之多層~磁性構造*其中該第一 與第二嫌磁性材料層係分別由鈷與嫌、鈷輿||、鈷與嫌 化練、及鈷與鈷化嫌觫姐成之族群中所選定之材料而形 成0 3Q.根據申謫専利範麵第27項之多靥磁性構造*其中該非磁 性金屬材料層係由釕、銥、睞與鍩所姐成之族群中所選 定之材料而形成。 31.根據申請專利範圔第30項之多層磁性構造•其中第一輿 第二截磁性材料層係分別由鈷與嫌、鈷與嫌、鈷輿嫌化 {請先閱讀背面之注意事項再填寫本页) •装· .訂· .線. f 4(210X297 公廣) 六、申請專利範® 7 7 7 7 A B c D 成 形 而 料 材 之 定 選 所 中 群 族 之 成 組 所 鐵 與 鎳 及 ' 锇 ...................................f ..............5t..............................ir.........严.................& (請先聞讀背面之注意事項再填寫本頁) 經濟部中央橾準局印製 T 4(210X297 公廣)
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US3898359A (en) * | 1974-01-15 | 1975-08-05 | Precision Electronic Component | Thin film magneto-resistors and methods of making same |
US4141051A (en) * | 1977-10-11 | 1979-02-20 | U.S. Philips Corporation | Variable dynamic range magneto-resistive head |
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JPS60251682A (ja) * | 1984-05-29 | 1985-12-12 | Hitachi Ltd | 磁気抵抗効果型素子 |
US4755897A (en) * | 1987-04-28 | 1988-07-05 | International Business Machines Corporation | Magnetoresistive sensor with improved antiferromagnetic film |
US4782413A (en) * | 1987-04-28 | 1988-11-01 | International Business Machines Corporation | Magnetoresistive sensor with mixed phase antiferromagnetic film |
US4950988A (en) * | 1988-02-11 | 1990-08-21 | Garshelis Ivan J | Two region, remanently magnetized position sensor |
JPH01217283A (ja) * | 1988-02-25 | 1989-08-30 | Fujitsu Ltd | 単方向磁界検出用磁気抵抗素子 |
US4912451A (en) * | 1988-03-28 | 1990-03-27 | Nippon Soken, Inc. | Heterojunction magnetic field sensor |
DE3820475C1 (zh) * | 1988-06-16 | 1989-12-21 | Kernforschungsanlage Juelich Gmbh, 5170 Juelich, De | |
JPH0223681A (ja) * | 1988-07-12 | 1990-01-25 | Nec Corp | 磁気抵抗効果素子 |
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US5206590A (en) * | 1990-12-11 | 1993-04-27 | International Business Machines Corporation | Magnetoresistive sensor based on the spin valve effect |
-
1992
- 1992-01-08 MY MYPI92000035A patent/MY108176A/en unknown
- 1992-01-15 KR KR1019920000457A patent/KR960001289B1/ko not_active IP Right Cessation
- 1992-01-20 TW TW081100373A patent/TW211077B/zh active
- 1992-01-21 CN CN92100326A patent/CN1044044C/zh not_active Expired - Fee Related
- 1992-01-31 BR BR929200322A patent/BR9200322A/pt active Search and Examination
- 1992-02-03 JP JP4017535A patent/JP2612988B2/ja not_active Expired - Fee Related
- 1992-02-03 CA CA002060561A patent/CA2060561C/en not_active Expired - Fee Related
- 1992-02-05 SG SG1996000144A patent/SG42852A1/en unknown
- 1992-02-05 EP EP19920300981 patent/EP0498640A3/en not_active Ceased
-
1993
- 1993-05-06 US US08/060,462 patent/US5341118A/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
KR920017027A (ko) | 1992-09-26 |
US5341118A (en) | 1994-08-23 |
SG42852A1 (en) | 1997-10-17 |
EP0498640A2 (en) | 1992-08-12 |
JP2612988B2 (ja) | 1997-05-21 |
CA2060561C (en) | 1998-05-05 |
BR9200322A (pt) | 1992-10-13 |
EP0498640A3 (en) | 1993-10-13 |
CN1063960A (zh) | 1992-08-26 |
CN1044044C (zh) | 1999-07-07 |
CA2060561A1 (en) | 1992-08-09 |
MY108176A (en) | 1996-08-30 |
JPH04360009A (ja) | 1992-12-14 |
KR960001289B1 (ko) | 1996-01-25 |
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