TW209294B - - Google Patents
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- TW209294B TW209294B TW080107220A TW80107220A TW209294B TW 209294 B TW209294 B TW 209294B TW 080107220 A TW080107220 A TW 080107220A TW 80107220 A TW80107220 A TW 80107220A TW 209294 B TW209294 B TW 209294B
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- magnetic
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- recording media
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- 150000001875 compounds Chemical class 0.000 claims description 23
- 239000000696 magnetic material Substances 0.000 claims description 18
- 238000000034 method Methods 0.000 claims description 14
- 239000000758 substrate Substances 0.000 claims description 13
- 229910001004 magnetic alloy Inorganic materials 0.000 claims description 12
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 11
- 230000015572 biosynthetic process Effects 0.000 claims description 6
- 239000000203 mixture Substances 0.000 claims description 5
- 229910002058 ternary alloy Inorganic materials 0.000 claims description 2
- 238000007740 vapor deposition Methods 0.000 claims description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims 2
- 239000000463 material Substances 0.000 claims 2
- 230000001568 sexual effect Effects 0.000 claims 2
- 229910052582 BN Inorganic materials 0.000 claims 1
- PZNSFCLAULLKQX-UHFFFAOYSA-N Boron nitride Chemical compound N#B PZNSFCLAULLKQX-UHFFFAOYSA-N 0.000 claims 1
- 241000282326 Felis catus Species 0.000 claims 1
- 229910052581 Si3N4 Inorganic materials 0.000 claims 1
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims 1
- 229940125782 compound 2 Drugs 0.000 claims 1
- PMHQVHHXPFUNSP-UHFFFAOYSA-M copper(1+);methylsulfanylmethane;bromide Chemical compound Br[Cu].CSC PMHQVHHXPFUNSP-UHFFFAOYSA-M 0.000 claims 1
- 229910052757 nitrogen Inorganic materials 0.000 claims 1
- RVTZCBVAJQQJTK-UHFFFAOYSA-N oxygen(2-);zirconium(4+) Chemical compound [O-2].[O-2].[Zr+4] RVTZCBVAJQQJTK-UHFFFAOYSA-N 0.000 claims 1
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 claims 1
- 229910052814 silicon oxide Inorganic materials 0.000 claims 1
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 claims 1
- 229910001928 zirconium oxide Inorganic materials 0.000 claims 1
- 239000010408 film Substances 0.000 description 22
- 239000010410 layer Substances 0.000 description 19
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 6
- 229910045601 alloy Inorganic materials 0.000 description 6
- 239000000956 alloy Substances 0.000 description 6
- 230000008859 change Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 239000002245 particle Substances 0.000 description 4
- 239000013078 crystal Substances 0.000 description 3
- 239000011521 glass Substances 0.000 description 3
- 230000005389 magnetism Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000010409 thin film Substances 0.000 description 3
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 230000005415 magnetization Effects 0.000 description 2
- 238000001755 magnetron sputter deposition Methods 0.000 description 2
- 239000011241 protective layer Substances 0.000 description 2
- 238000004544 sputter deposition Methods 0.000 description 2
- 241000282461 Canis lupus Species 0.000 description 1
- 229910019222 CoCrPt Inorganic materials 0.000 description 1
- 229910018979 CoPt Inorganic materials 0.000 description 1
- 229910002546 FeCo Inorganic materials 0.000 description 1
- 229910052775 Thulium Inorganic materials 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 229910003481 amorphous carbon Inorganic materials 0.000 description 1
- 229910052786 argon Inorganic materials 0.000 description 1
- 229910002056 binary alloy Inorganic materials 0.000 description 1
- 229910052797 bismuth Inorganic materials 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000010432 diamond Substances 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000005012 migration Effects 0.000 description 1
- 238000013508 migration Methods 0.000 description 1
- 150000004767 nitrides Chemical group 0.000 description 1
- 238000005554 pickling Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 229910002059 quaternary alloy Inorganic materials 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000008929 regeneration Effects 0.000 description 1
- 238000011069 regeneration method Methods 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 238000010025 steaming Methods 0.000 description 1
- 238000012360 testing method Methods 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
- G11B5/62—Record carriers characterised by the selection of the material
- G11B5/64—Record carriers characterised by the selection of the material comprising only the magnetic material without bonding agent
- G11B5/65—Record carriers characterised by the selection of the material comprising only the magnetic material without bonding agent characterised by its composition
- G11B5/658—Record carriers characterised by the selection of the material comprising only the magnetic material without bonding agent characterised by its composition containing oxygen, e.g. molecular oxygen or magnetic oxide
-
- 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
- G11B5/62—Record carriers characterised by the selection of the material
- G11B5/64—Record carriers characterised by the selection of the material comprising only the magnetic material without bonding agent
- G11B5/65—Record carriers characterised by the selection of the material comprising only the magnetic material without bonding agent characterised by its composition
- G11B5/657—Record carriers characterised by the selection of the material comprising only the magnetic material without bonding agent characterised by its composition containing inorganic, non-oxide compound of Si, N, P, B, H or C, e.g. in metal alloy or compound
-
- 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
- G11B5/84—Processes or apparatus specially adapted for manufacturing record carriers
- G11B5/851—Coating a support with a magnetic layer by sputtering
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S428/00—Stock material or miscellaneous articles
- Y10S428/90—Magnetic feature
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/12—All metal or with adjacent metals
- Y10T428/12465—All metal or with adjacent metals having magnetic properties, or preformed fiber orientation coordinate with shape
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/12—All metal or with adjacent metals
- Y10T428/12493—Composite; i.e., plural, adjacent, spatially distinct metal components [e.g., layers, joint, etc.]
- Y10T428/12771—Transition metal-base component
- Y10T428/12861—Group VIII or IB metal-base component
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/12—All metal or with adjacent metals
- Y10T428/12493—Composite; i.e., plural, adjacent, spatially distinct metal components [e.g., layers, joint, etc.]
- Y10T428/12771—Transition metal-base component
- Y10T428/12861—Group VIII or IB metal-base component
- Y10T428/12951—Fe-base component
Description
209294 A6 B6 五、發明說明(/ ) 〔發明之詳妞說明〕 〔產業上之利用範園] 本發明係鼷於使用於磁性記憧裝置等之磁性記錄媒《8及 其製造方法。 〔習知之技術] 磁性記錄用之記錄媒體,最近逐漸使用了稱為連續媒賭 之金屬薄膜媒體。連績媒體則使用Co系磁性合金等之強磁 性材料。然而,其所使用之磁性材料,卻在,玄 身m直立於.縱長方向記錄之強篇面内磁性異方性。是 以,J1非磁性基里之上設置性底®,於其上Β成… 磁性層,M得到面内磁性異方性。葬而,此類之磁性媒賭 ΤΊΕΊϋ之i性卻受到此一非磁性底層之膜形狀、狀態所 左右,故必須於底層之成膜時,付與同磁性層成膜時般之 注意,«著控制底層之成膜狀態•工程音理便也益形複雜 〇 另一方面,一般均知帶有磁性之微佃结晶粒,會因粒子 彼此之間作用之交換结合,而擴大磁化遷移幅度,產生媒 S雜訊。欲提高記錄密度•重要車項便是能抑住此一媒體 雜訊。特開平卜2325 16¾及持開平1-232517號公報,公開 有將兀素(C ’ P ,Bi.等)添加於Co系三元磁性合金而作 成新之四元Μ上之合金·_著將所得之合金成膜於基板上 ,減低媒傾雑訊之技術。然而•因為磁性®内仍然刺留有 磁性合金结晶粒之間之结合•故無法充分抑住媒傾雜訊。 又,所得到之保磁力亦小,不滿1、0 0 0 ( ϋ e )。何況,亦未 {請先聞讀背面之注意事項再填寫本页) •装. .打· •線. 中 4(21〇X 297公沒) 209294 A6 B6 五、發明説明(>) (請先聞讀背面之注意事項再填寫本瓦) 解決需要由Cr所構成之底®。 C發明所欲解決之課題] 因此,本發明之目的,在於提供媒體雜訊小•且具有高 之保磁力,適於縱長方_記錄之磁性記錄媒賭。 本發明之其它目的,在於以Co系、Fe系荜FeCo系磁性材 料為磁性庙之磁性記錄媒體上,磁性雇可不需底®而展示 遘於縱長磁性記錄之磁性特性。 〔解決課題所使用之手段] 本發明之磁性記錄媒膀,具備基板、以及形成於基板上 之磁性層;其^_廷,苯磁性層係由¢0:1)、(f 、€ Co·»之 任一系磁性材料•以及由氧化物及氮化物族群中所選擇之 至少一棰非磁性化合物,混合而成。 .打.
Co系磁性材料,舉例有CoNiCr、CoNiPt、CoCrPt、 “C「Ta 〇 而 ΙΕ崖件,,iL·^ 物,立遇有氣ϋΐ二JO?.._、ϋ 妲化矽、緝。 Μ上所示之磁性材料,單獨膜時磁性異方性並不會優先 於面内方向成長。是Μ,先前技術均設Κ非磁性之底®· 以得到磁性曆之面内異方性。本發明中,將非磁性化合物 與磁性材料同時成瞑,因而在磁性層中有不融合於磁性材 枓之非磁性化合物·故能於未設底庙而使磁性®之磁性異 方性之方向傾向與媒傾表面平行之方向。此被認為乃非磁 性化合物使得磁性材料之·结晶成長配向性發生莖化•產生 逋於面内磁性記錄之異方性所致。又•此棰非磁性化合物 可將磁性材料之结晶粒子•加以孤立化、微细化·故亦能 -4 - 甲 4(210X 2971'·«) 209294 A6 B6 五、發明說明(3 實 現高 保磁力 ,減低媒 髁 雜 訊 〇 上述 一 Co系磁 性合金之 較 佳 姐 成 « m 括磁 i性 性性 再 生特 性、耐 候性而評 價 之 > 分 別 是 一般式 Co (1 - X -y ) N i ( X) C r (y ) ( 但 » X = 0,2 -0 . 4 , y = 0 · 05 -0 . 1) Co (1 - X -y)Ni (x)Pt(y) ( 但 t X = 0.2 -0 . 4 , y = 0. 01 -0 . 2) Co (1 - X -y ) C r ( X)P t (y) ( 但 1 X = 0.1 -0 . 3 , y = 0. 01 -0 . 2) Co 丨(1 - X -y ) C r ( x)Ta (y ) ( 但 1 X = 0.1 -0 . 3 · A 性學會誌Vol . 13 · No. 3 · y = 0.01-0.05) (參照寺田:日本應用磁 493(1989)) 非磁性化合物之《稹比 好占混合中磁性材料與非 上,且約30 % Μ下。可得 又,由於即使將Co系合 CoPd - CoCr - CoPt)或四 Μ上,此等Co系合金薄瞑 於三元合金者•故亦可充 *而得到此類合金之效果 合物混合成膜另一方之磁 γ - F e 2 0 a ) 、F e 系合金 如F e C o C r ),而期待得到 例(以下稱為混合髓積率),最 磁性化合物全部體稹之約 到之it大效果m. 〇. — ^ 金設定為二元(例如CoN i , >Jh 元(例如CoNiC「V , CoHiCrCu) 中结晶粒子之结合吠態,仍然同 分期許藉著非磁性化合物之混合 ° ·亦可將本發明非磁性化 性材料,代K Fe系化合物(例如 (例如F e Ν ί )或F e C 〇系合金(例 同樣之效果。 C、 ^ Γ ......................................................«.:·」.........*...............<τ {請先«讀背面之注意事項再填寫本页) -5- 甲 4(210X 297W发) 4209294 A6 B6 五、發明説明() 同時成膜法,有蒸著法與濺射法。本發明因為只要實現 磁性層内磁性材料以及非磁性化合物之混合狀態即可,故 可任K濺射法或蒸著法之任何一種,分別使用於磁性材料 與非磁性化合物之成膜。 〔霣施例〕 K下,依據圖式而說明實腌例。 麵1繪示本發明磁性記錄媒體之構造。於非磁性玻璃基 板1之上,藉著同時成瞑法而形成磁性層2。同時成膜法 中係就磁性合金(:〇76.5〇12.9?1^1.6而採用0(:磁控管濺射 (magnetron sputtering)法(J旦,氬背壓:5n Torr ) *且同時就非磁性化合物Si〇2而使用RF磁控管«射法而後 形成磁性層2。S〖02之混合體稹率,設定為5 vol% 。磁 性層2之上,MRF狼射法將Zr〇2P (厚度30nn)成膜而作 為非磁性保護層3。 此外,採用K SiN代Si02M及採用M Zr〇2取代Si〇2,而 在同於Si〇2之場合與條件(磁性合金之姐成、混合體稹率 等)下,各自製成媒體。$,為了比較起見,亦製成了於 非磁性玻璃基板1上僅由Co”. eCrmPtu .β所構成之膜 •其它條件則同於上述,含有Co系磁性合金辑,之媒體( 晒2 )。 圃3係各就各棰媒體,變化磁件面2 gg, 4之厚度,所测 丨丨................................. .这Λ 得保结果。由此可知·於膜厚之全部領域中,均可 铥著混合非磁性化合物,而大幅地提高磁性特性。尤其, 膜厚較薄之區段,改菩尤為顧著。圆3中,,係每棰各取一 {請先閲讀背面之注意事項再填寫本頁) .策· •打· •綠. 甲 4(210X 297 H*) A6 B6 209294 五、發明説明(S > 點,而就以BN取代Si〇2之媒體,以Ta〇2取代Si〇22媒體、 MTiN取代Si〇2之媒傾,Μ及KAIH取代Si〇2之媒«,而 分別測出保磁力之值。每種媒體之製作條件(磁性合金之 狙合、混合《積率等),均與採用Si〇2時製作媒體之條件 相同。其它,另有採用二元合金中之C〇e〇HU。,作為磁性 合金,Μ及採用Si〇2,作為非磁性化合物,於同時成膜時 ,前者以DC磁控管激射法,後者M RF磁控管濺射法•其它 條件(混合體積率等),則與Si〇2之情形時相同,而製成 媒體。雖然亦只有一黏,圃3亦繪示有此種媒體所得到之 保磁力測定值。 其次,另以力矩磁力計,而分別就上述般製成之試料中 ,磁性面為(:〇75.!5〇12.«»?1;11.0與5丨〇2所成之混合膜試料 -(混合容積率為5vol% ),以及僅由 ,^,ι—--Τ-.Ι-ΙΠΤ Ιΐτιη,ι· „丨,丨|丨·ι_ι_ I>»>·ΙΤΤΤ—*^·~~· Ι·Ι» Ij tm>
Co^.sCrmPtu.e所成膜之試枓,各測定了其等面内方 向力矩之大小。兩者磁性膜之膜厚均為85nm。測定结果示 於表1 。由表1可知,與Si〇2混合之試料有較大之面内異 方性7\ C表1〕 其次,於具有圖1構造之媒婧中,將基板1作為玻璃基 .板•將磁性® 2之膜厚固定為43ηπ,保護® 3則使用 30ηη之Zr02膜•進行一個實驗以調査非磁性化合物之混合 體檟率與媒傾之保磁力之關係。结果示於圖4。國中,當 磁性瞄2之非磁性化合物為$丨02時,媒《所得到之資料為 黑點·而當非磁性化合物為S i N時.媒體所得到之資枓則 -7- 甲 4(210X 297公沒) {請先《讀背面之注意事項再填寫本頁) •装. .打· •線· 3209^94 A6 B6 五、發明說明(& ) 為黑鑽石。由此可知•非磁性化合物之混合艟稹率,約 於2vol%以上而約於30vol%以下之範園,可得到優異 之特性。尤其•當混合嫌積率約在5vol%時,可得到約 2000 ( 0e)之高保磁力。 最後,就表1所示之各試料(碟片),進行一實驗以譎 査寫入密度與媒體雑訊之關係。碟片之旋轉數為3600rpm •記錄《流為100mAp-p,磁頭則採用薄膜磁頭。於變化1 nm時磁束、赛化(flux.change ,磁化反轉)之數目,以 測定記錄特性(信號雜訊比)。由圔可知,本發明之試料 ,具有良好之S/N特性。 由以上說明可知•本發明即使沒有底層,亦可班於縱長 方向記錄而得到優越之磁性特性。然而•亦可在混有磁性 材料與非磁性化合物之磁性層内•調整磁性特性之目的下 •而將底層介於基板與磁性《之間。本發明之範圍,亦包 含此種媒髁。 又,保護膜除了上面所示之Zr〇2膜外•亦可採用已知通 於保謅磁性膜之無晶碳膜、5 1〇2膜等之所有膜。 〔發明之效果〕 本發明提供了媒Η雜訊小、具有高保磁力、且遘於縱長 方向記鏵之磁性記錄媒《。又,本發明亦可提供18棄底庙 ,構造Η單而簡化製造工程,且通合縱長方向記錄之磁性 記錄媒》。 〔圖式之簡單說明〕 圈1係本發明磁性記錄媒《之斷面圈。 • -8- (請先聞讀背面之注意事項再填寫本瓦) ( •打. ." tf 4(21〇Χ 297^'^ί) A6 B6 209,94 五、發明説明(〇 ) 圈2係基於比較而製作沒有非磁性底歷之習知磁性記錄 媒Η之醱面圔。 圓3係本發明磁性Ε錄媒體及習知磁性記錄媒體之磁性 層膜厚與保磁力之U係钃形。 圈4係顯示非磁性化合物之混合《稹率與保磁力之闞係 ·丨丨 ~WMimM>irtwnniwOTr—*~T.r -ηΐιπ-τιι»丨.,_-丨-——⑷*, n mnnm 之圖形。 圈5係顯示本發明磁性E錄媒體及習知磁性記錄媒體之 記錄特性(信號雜訊比)圖形。 〔符號之說明〕 1基板、2磁性層、3保護層。 {請先聞讀背面之注意事項再填寫本页) .訂· •綠· -9- 甲 4(210X 297::发)
Claims (1)
- 經濟邡中央樣準局印製 六、申請專利範面 L -種磁 基板; 材料及 其中, 其中非 氧化鉅 化合物 其中非 非磁性 2. 根據申 層,係 與非磁 3. 根據申 層,係 4. 根據申 於該磁 5. 根據申 材料, 中所選 6. 根據申 .三元磁 Co (1 -X 根據申 T4(210X 297^'4f)性記錄媒體•包含: 及於基板上所形成之磁 非磁性化合物之混合物 該磁性材料係Co糸, 磁性化合物係至少一棰 、氮化矽、氮化硼、氮 ,且 磁性化合物體積之比例 化合物全部體積之2% 謫專利範圃第1項之磁 K蒸著法或猫射法之任 性化合物,同時依成膜 * ' · * 請專利範圃第1項之磁 直接形成於該基板上。 請專利範蘭第1項之磁 性層之上形成有保護曆 請專利範園第1項之磁 係由 CoNiCr 、 CoNiPt 、 擇之三元合金。 請專利範園第5項之磁 性合金之姐成》由下式 -y) N i (x) Cr (y). (但 0 . 請專利範圃第5項之磁 性》*該磁性層係由磁性 構成,、 擇自由氧化矽、氧化锆、 化钛、氮化鋁所成族群之 *占混合物中磁性材料與 至 30% ° 性記錄媒體,其中該磁性 —種*而分別就磁性材料 法而形成。 性記錄媒體,其中該磁性 性記錄媒《 *其中尚具備 〇 性記錄媒體•其中該磁性 CoPtCr 、 CoCrTa所成族群 性記錄媒體,其中該Co糸 表之: * 0.2S X ^ 0.4 · 05 ^ y ^ 0 . 1 ) 性記錄媒體,其中該Co糸 (請先閱讀背面之注意事項再填寫本頁) A7 B7 C7 D7 209"94 六'申請專利範面. 三元磁性合金之姐成,由下式表之: Co(l-x-y)Hi (x)Pt(y) (但,0.2忘 x 客 0.4· 0. 01 ^ y S 0.2 ) 8. 根據申讅専利範围第5項之磁性記錄媒髖*其中該Co系 三元磁性合金之姐成,由下式表之: Co(l-x**y)Cr(x)Pt(y) ' (但,〇’.1忘 X 忘 0.3, 0.01S y ^ 0.2 ) 9. 根據申請專利範蘭第5項之磁性記錄媒體,其中該Co系 .三元磁性合金之姐成,由下式表之: Co (1-x-y)Cr (x)Ta (y) (但,0.1盔 x 运 0.3, 0.01^ y ^0.05) L........:....................(...............装 (請先閲讀背面之注意事項再填寒本頁) 經濟部中央橾準局印浆 打.......(..................緣… 肀 4(210X297 公廣)
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Families Citing this family (19)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5658659A (en) * | 1994-01-28 | 1997-08-19 | Komag, Inc. | Magnetic alloy and method for manufacturing same |
US5846648A (en) * | 1994-01-28 | 1998-12-08 | Komag, Inc. | Magnetic alloy having a structured nucleation layer and method for manufacturing same |
US5736013A (en) * | 1994-04-06 | 1998-04-07 | Komag, Inc. | Method for forming an improved magnetic media including sputtering of selected oxides or nitrides in the magnetic layer, and apparatus for same |
DE19508535A1 (de) * | 1995-03-10 | 1996-09-12 | Leybold Materials Gmbh | Sputtertarget aus einer Kobalt-Basislegierung mit hohem Magnetfelddurchgriff |
JP3448698B2 (ja) | 1995-06-27 | 2003-09-22 | 株式会社日立製作所 | 磁気記憶装置及び磁気記録媒体 |
JP3249068B2 (ja) * | 1997-05-26 | 2002-01-21 | 富士通株式会社 | 磁気記録方法及び装置 |
US6242085B1 (en) | 1997-09-17 | 2001-06-05 | Matsushita Electric Industrial Co., Ltd. | Magnetic recording medium and method for producing the same |
US5968627A (en) * | 1998-01-15 | 1999-10-19 | Flextor, Inc. | Metal foil disk for high areal density recording in environments of high mechanical shock |
US5989674A (en) * | 1998-05-15 | 1999-11-23 | International Business Machines Corporation | Thin film disk with acicular magnetic grains |
US6479169B1 (en) | 2000-03-16 | 2002-11-12 | Trace Storage Technology Corp. | Low noise magnetic recording media having a interlayer film |
KR100800018B1 (ko) * | 2001-07-11 | 2008-01-31 | 후지쯔 가부시끼가이샤 | 자기 기록 매체 및 그 제조 방법 |
JP2003346318A (ja) * | 2002-05-23 | 2003-12-05 | Fuji Photo Film Co Ltd | 磁気記録媒体 |
US7112376B2 (en) | 2003-01-10 | 2006-09-26 | Fuji Photo Film Co., Ltd. | Magnetic recording medium |
US7429427B2 (en) * | 2004-12-06 | 2008-09-30 | Seagate Technology Llc | Granular magnetic recording media with improved grain segregation and corrosion resistance |
US20070184308A1 (en) * | 2006-02-08 | 2007-08-09 | Imation Corp. | Magnetic recording medium with reservoirs and method of manufacture |
US8592061B2 (en) | 2006-09-29 | 2013-11-26 | Wd Media (Singapore) Pte. Ltd. | Magnetic recording medium with controlled grain diameters |
US7862913B2 (en) * | 2006-10-23 | 2011-01-04 | Hitachi Global Storage Technologies Netherlands B.V. | Oxide magnetic recording layers for perpendicular recording media |
KR100846505B1 (ko) * | 2006-12-15 | 2008-07-17 | 삼성전자주식회사 | 패턴화된 자기 기록 매체 및 그 제조방법 |
CN115094380B (zh) * | 2022-06-02 | 2023-06-02 | 山东麦格智芯机电科技有限公司 | 一种FeCoCr磁性材料及其制备方法和应用 |
Family Cites Families (20)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5629A (en) * | 1979-06-15 | 1981-01-06 | Ulvac Corp | Vacuum-evaporated film type magnetic recording substance and its manufacture |
JPS567231A (en) * | 1979-06-27 | 1981-01-24 | Ulvac Corp | Vapor deposition film type magnetic recording material and its production |
JPS57113417A (en) * | 1980-12-29 | 1982-07-14 | Sony Corp | Magnetic recording medium |
JPS57138058A (en) * | 1981-02-19 | 1982-08-26 | Matsushita Electric Ind Co Ltd | Manufacture for magnetic recording medium |
US4407091A (en) * | 1981-07-27 | 1983-10-04 | Moody Gary W | Wrist attached rattle and educational device for infants |
JPH0766507B2 (ja) * | 1984-02-16 | 1995-07-19 | コニカ株式会社 | 磁気記録媒体 |
JPS6260119A (ja) * | 1985-09-11 | 1987-03-16 | Victor Co Of Japan Ltd | 磁気記録媒体及びその製造方法 |
JPS62162223A (ja) * | 1986-01-09 | 1987-07-18 | Matsushita Electric Ind Co Ltd | 薄膜磁気記録媒体 |
US4752344A (en) * | 1986-12-22 | 1988-06-21 | International Business Machines Corporation | Magnetic layer and method of manufacture |
US4789598A (en) * | 1987-01-20 | 1988-12-06 | International Business Machines Corporation | Thin film medium for horizontal magnetic recording having an improved cobalt-based alloy magnetic layer |
JPH01232516A (ja) * | 1988-03-10 | 1989-09-18 | Kubota Ltd | 金属薄膜型磁気記録媒体 |
JPH01232517A (ja) * | 1988-03-10 | 1989-09-18 | Kubota Ltd | 金属薄膜型磁気記録媒体 |
US5143794A (en) * | 1988-08-10 | 1992-09-01 | Hitachi, Ltd. | Magnetic recording media for longitudinal recording, process for producing the same and magnetic memory apparatus |
US4973525A (en) * | 1988-10-14 | 1990-11-27 | The Johns Hopkins University | Metal-insulator composites having improved properties and method for their preparation |
JP2974691B2 (ja) * | 1989-08-30 | 1999-11-10 | ソニー株式会社 | 磁気記録媒体 |
US5062938A (en) * | 1990-01-16 | 1991-11-05 | International Business Machines Corporation | High coercivity low noise cobalt alloy magnetic recording medium and its manufacturing process |
EP0443478A3 (en) * | 1990-02-19 | 1992-03-11 | Kanegafuchi Kagaku Kogyo Kabushiki Kaisha | Magnetic recording medium and method for preparing the same |
US5158933A (en) * | 1990-11-15 | 1992-10-27 | Holtz Ronald L | Phase separated composite materials |
EP0580095A1 (en) * | 1992-07-24 | 1994-01-26 | Matsushita Electric Industrial Co., Ltd. | Production of magnetic recording medium |
JPH06176360A (ja) * | 1992-12-03 | 1994-06-24 | Fuji Photo Film Co Ltd | 磁気記録媒体の製造方法 |
-
1991
- 1991-09-06 JP JP3254179A patent/JPH087859B2/ja not_active Expired - Fee Related
- 1991-09-12 TW TW080107220A patent/TW209294B/zh active
-
1992
- 1992-06-16 CA CA002071348A patent/CA2071348C/en not_active Expired - Fee Related
- 1992-08-18 CN CN92108729A patent/CN1025522C/zh not_active Expired - Fee Related
- 1992-08-18 KR KR1019920014824A patent/KR0147856B1/ko not_active IP Right Cessation
- 1992-08-25 SG SG1996000135A patent/SG44396A1/en unknown
- 1992-08-25 DE DE69222823T patent/DE69222823D1/de not_active Expired - Lifetime
- 1992-08-25 EP EP92307745A patent/EP0531035B1/en not_active Expired - Lifetime
-
1995
- 1995-06-01 US US08/456,971 patent/US5516547A/en not_active Expired - Fee Related
-
1996
- 1996-01-11 US US08/584,575 patent/US5658680A/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
JPH0573880A (ja) | 1993-03-26 |
JPH087859B2 (ja) | 1996-01-29 |
KR930006652A (ko) | 1993-04-21 |
KR0147856B1 (ko) | 1998-07-15 |
CA2071348C (en) | 1998-05-19 |
SG44396A1 (en) | 1997-12-19 |
US5658680A (en) | 1997-08-19 |
US5516547A (en) | 1996-05-14 |
EP0531035B1 (en) | 1997-10-22 |
CA2071348A1 (en) | 1993-03-07 |
EP0531035A1 (en) | 1993-03-10 |
CN1025522C (zh) | 1994-07-20 |
DE69222823D1 (de) | 1997-11-27 |
CN1070278A (zh) | 1993-03-24 |
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