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1.发明授权Thin film magnetic disk having reactive element doped refractory metal seed layer 失效具有反应性元素掺杂难熔金属种子层的薄膜磁盘公开(公告)号：US06174582B1
公开(公告)日：2001-01-16
申请号：US09020151
申请日：1998-02-06
申请人： Xiaoping Bian , Shanlin Duan , Jinshan Li , Mohammad Mirzamaani
发明人： Xiaoping Bian , Shanlin Duan , Jinshan Li , Mohammad Mirzamaani
IPC分类号： G11B566
CPC分类号： G11B5/732 , G11B5/7325 , G11B5/8404 , Y10S428/90 , Y10T428/12465 , Y10T428/265
摘要： A method of fabricating a thin film magnetic disk including depositing a seed layer of a refractory metal such as tantalum, Cr, Nb, W, V, or Mo and a reactive element such as N or O; depositing a nonmagnetic underlayer onto the seed layer; and depositing a magnetic layer is disclosed. Also disclosed is a thin film magnetic disk having a substrate; a seed layer comprising tantalum and at least about 1 atomic-% of nitrogen or oxygen; an underlayer comprising Cr or an alloy of chromium deposited onto the seed layer, the underlayer preferably having a preferred orientation of [200]; and a magnetic layer deposited onto the underlayer, the magnetic layer preferably having a preferred orientation of [11{overscore (2)}0]. Also disclosed is a disk drive using the thin film magnetic disk of the invention.
摘要翻译： 一种制造薄膜磁盘的方法，包括沉积诸如钽，Cr，Nb，W，V或Mo的难熔金属种子层和诸如N或O的反应性元件; 将非磁性底层沉积到种子层上; 并且公开了沉积磁性层。 还公开了具有基板的薄膜磁盘; 包含钽和至少约1原子％的氮或氧的种子层; 包含Cr或沉积在种子层上的铬的合金的底层，底层优选具有[200]的优选取向; 和沉积在底层上的磁性层，磁性层优选地具有优选取向为[11（超芯（2）} 0]。 还公开了使用本发明的薄膜磁盘的磁盘驱动器。
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2.发明授权Seed layer and underlayer with high and low oxygen concentration portions for hand disk magnetic recording medium on a glass substrate 失效在玻璃基板上的手盘磁记录介质的种子层和具有高和低氧浓度部分的底层公开(公告)号：US06413608B1
公开(公告)日：2002-07-02
申请号：US09336641
申请日：1999-06-18
IPC分类号： G11B566
CPC分类号： G11B5/732 , C23C14/185 , G11B5/7325 , Y10S428/90 , Y10T428/24942 , Y10T428/265
摘要： The thin film magnetic disk of the present invention includes a non-metallic substrate having a seed layer deposited on the substrate, an underlayer deposited upon the seed layer composed of a chromium alloy having a relatively high oxygen concentration portion of from 2,000 ppm to 20,000 ppm and preferably approximately 4,000 ppm to 12,000 ppm, followed by a relatively low oxygen concentration portion of from 0-2,000 ppm, and preferably from 500 ppm to 1,500 ppm and a magnetic layer that is deposited upon the underlayer. The underlayer total thickness is in the range of from approximately 250 Å to approximately 700 Å with a preferred thickness of approximately 450 Å, wherein approximately half of the underlayer thickness is the high oxygen concentration portion and half is the low oxygen concentration portion.
摘要翻译： 本发明的薄膜磁盘包括具有沉积在基板上的种子层的非金属基板，沉积在由具有2000ppm至20,000ppm的较高氧浓度部分的铬合金构成的种子层的底层 优选为约4,000ppm〜12,000ppm，其次为相对较低的氧浓度部分为0〜2,000ppm，优选为500ppm〜1500ppm，以及沉积在底层上的磁性层。 底层总厚度在约250至约700的范围内，优选的厚度约为450，其中下层厚度的大约一半是高氧浓度部分，一半是低氧浓度部分。
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公开(公告)号：US6143388A
公开(公告)日：2000-11-07
申请号：US976565
申请日：1997-11-24
CPC分类号： G11B5/732 , G11B5/656 , G11B5/66 , G11B5/7325 , Y10S428/90 , Y10T428/265
摘要： A thin film disk and a disk drive using the thin film disk are described. The disk has an onset layer between the underlayer and the boron containing magnetic layer, for example. The onset layer of the invention is useful because the boron containing magnetic layer material resists being deposited with the C-axis in plane. The onset layer material is selected to promote an in-plane C-axis orientation. When a boron containing magnetic layer is deposited on the onset layer the resulting in-plane PO is improved. The preferred onset layer is of hexagonal closed pack structured material which may be magnetic or nonmagnetic. Materials which are usable for the onset layer include a wide range of pure elements and cobalt alloys such as CoCr, CoPtCr, CoPtCrTa and CoCrB. The onset layer is particularly useful in allowing a ferromagnetic cobalt (Co) alloy containing a relatively high chromium and boron content to be deposited on nonmetallic substrates with the C-axis in the plane of disk without the need for negative bias during the sputtering of the underlayer.
摘要翻译： 描述使用薄膜盘的薄膜盘和磁盘驱动器。 例如，盘在底层和含硼磁性层之间具有起始层。 本发明的起始层是有用的，因为含硼磁性层材料抵抗C平面上的沉积。 选择起始层材料以促进面内C轴取向。 当含硼磁性层沉积在起始层上时，所得到的面内PO得到改善。 优选的起始层是可以是磁性或非磁性的六边形封闭包装结构材料。 可用于起始层的材料包括宽范围的纯元素和钴合金，例如CoCr，CoPtCr，CoPtCrTa和CoCrB。 起始层特别适用于允许含有相对较高的铬和硼含量的铁磁性钴（Co）合金沉积在非金属基体上，其中C轴在盘平面中，而不需要在溅射期间的负偏压 底层
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公开(公告)号：US06846543B2
公开(公告)日：2005-01-25
申请号：US10850735
申请日：2004-05-21
CPC分类号： G11B5/732 , G11B5/656 , G11B5/7325 , G11B5/8404 , Y10S428/90 , Y10T428/12465 , Y10T428/12861 , Y10T428/265
摘要： A magnetic thin film disk for use in a disk drive with a ruthenium-aluminum (RuAl) seed layer with B2 structure followed by a NiAl layer is described. The disk has reduced noise and increased squareness which results in improved recording performance in a disk drive utilizing the disk. The improved disk is formed by first depositing the RuAl seed layer on the substrate then the NiAl layer is deposited onto the NiAl, followed by the other layers required for a magnetic disk such as an underlayer material with a lattice parameter compatible with RuAl such as Cr-alloy, followed by a standard hcp magnetic material. The RuAl seed layer promotes a [100] preferred orientation in the underlayer which in turn promotes a [11{overscore (2)}0] preferred orientation in the magnetic layer.
摘要翻译： 描述了一种用于带有B2结构的钌 - 铝（RuAl）晶种层的磁盘驱动器的磁性薄膜盘片，然后是NiAl层。 磁盘具有降低的噪声和增加的矩形度，这导致利用磁盘的磁盘驱动器中的记录性能得到改善。 通过首先在衬底上沉积RuAl籽晶层，然后将NiAl层沉积到NiAl上，然后沉积到具有与RuAl相容的晶格参数如Cr的磁盘所需的其它层，形成改进的盘 合金，其次是标准的hcp磁性材料。 RuAl种子层促进底层中的优选取向，这进一步促进了磁性层中的[11（超（20））优选取向。
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公开(公告)号：US08532450B1
公开(公告)日：2013-09-10
申请号：US12645491
申请日：2009-12-23
申请人： Zhongyan Wang , Wei Gao , Ruolin Li , HongXing Yuan , Jinshan Li
发明人： Zhongyan Wang , Wei Gao , Ruolin Li , HongXing Yuan , Jinshan Li
IPC分类号： G02F1/295
CPC分类号： G02B5/1857
摘要： A method and system for providing an optical grating are described. The optical grating is configured for light of a wavelength and includes a first optically transparent layer, a stop layer on the first optically transparent layer, and a second optically transparent layer on the stop layer. The first optically transparent layer is continuous and includes a material. The second optically transparent layer also includes the material. The second optically transparent layer also includes a plurality of discrete ridges spaced apart by a pitch. The stop layer is configured to be invisible to the light.
摘要翻译： 描述了一种用于提供光栅的方法和系统。 光栅被配置成用于波长的光，并且包括第一光学透明层，第一光学透明层上的停止层和停止层上的第二光学透明层。 第一光学透明层是连续的并且包括材料。 第二光学透明层还包括材料。 第二光学透明层还包括由间距间隔开的多个离散脊。 停止层被配置为对光不可见。
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公开(公告)号：US07646569B2
公开(公告)日：2010-01-12
申请号：US11458896
申请日：2006-07-20
IPC分类号： G11B5/127
CPC分类号： G11B5/39
摘要： A method for manufacturing a magnetic read sensor and a magnetic read sensor are provided. In one embodiment of the invention, the method includes providing a seed layer disposed over a substrate of the magnetic read sensor, providing a free layer disposed over a seed layer and providing a spacer layer disposed over the free layer. The method further includes providing a pinned layer disposed over the spacer layer. In one embodiment, the pinned layer includes cobalt and iron, wherein the concentration of iron in the pinned layer is between 33 and 37 atomic percent (at. %). The method further includes providing a pinning layer disposed over the pinned layer, wherein the pinning layer is in contact with the pinned layer.
摘要翻译： 提供了一种用于制造磁读取传感器和磁读取传感器的方法。 在本发明的一个实施例中，该方法包括提供设置在磁读取传感器的衬底上的种子层，提供设置在种子层上的自由层并提供设置在自由层之上的间隔层。 该方法还包括提供设置在间隔层上方的钉扎层。 在一个实施例中，钉扎层包括钴和铁，其中钉扎层中的铁的浓度为33至37原子百分比（原子％）。 该方法还包括提供设置在钉扎层上方的钉扎层，其中钉扎层与钉扎层接触。
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公开(公告)号：US07538988B2
公开(公告)日：2009-05-26
申请号：US10955396
申请日：2004-09-30
申请人： Jinshan Li , Alexander M. Zeltser
发明人： Jinshan Li , Alexander M. Zeltser
IPC分类号： G11B5/127
CPC分类号： B82Y25/00 , B82Y10/00 , G11B5/3929 , G11B2005/3996
摘要： A method and apparatus for an improved magnetic read sensor having synthetic or AP pinned layers with high resistance and high magnetoelastic anisotropy is disclosed. A pinned layer includes a cobalt-iron ternary alloy, where a third constituent of the cobalt-iron ternary alloy layer is selected for increasing the resistance and magnetoelastic anisotropy of the cobalt-iron ternary alloy layer.
摘要翻译： 公开了一种具有具有高电阻和高磁弹性各向异性的合成或AP钉扎层的改进磁读取传感器的方法和装置。 钉扎层包括钴 - 铁三元合金，其中选择钴 - 铁三元合金层的第三成分用于提高钴 - 铁三元合金层的电阻和磁致弹性各向异性。
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8.发明授权Method of fabricating magnetic sensors with pinned layers with zero net magnetic moment 失效制造具有零净磁矩的固定层的磁传感器的方法公开(公告)号：US07367109B2
公开(公告)日：2008-05-06
申请号：US11048259
申请日：2005-01-31
申请人： Jinshan Li , Tsann Lin
发明人： Jinshan Li , Tsann Lin
CPC分类号： G11B5/3166 , B82Y25/00 , G01R33/093 , G11B5/3903 , G11B2005/0016 , Y10T29/49032 , Y10T29/49036 , Y10T29/49039 , Y10T29/49043 , Y10T29/49044
摘要： A method for achieving a nearly zero net magnetic moment of pinned layers in GMR sensors, such as Co—Fe/Ru/Co—Fe, is described. The method determines a thickness of the first pinned layer which will yield the desired net magnetic moment for the pinned layers. A series of test structures are deposited on a substrate such as glass. The test structures include the seed layers, pinning layers and pinned layers and have varying thicknesses of the first pinned layer. The compositions of the materials and the thicknesses of all of the other films remain constant. The net areal magnetic moment of each test structure is measured and plotted versus the thickness of the first pinned layer. The thickness of the first pinned layer which corresponds most closely to zero net areal magnetic moment is chosen as the design point for the sensor.
摘要翻译： 描述了用于在GMR传感器（例如Co-Fe / Ru / Co-Fe）中实现钉扎层的几乎零净磁矩的方法。 该方法确定第一被钉扎层的厚度，其将产生用于钉扎层的期望的净磁矩。 一系列测试结构沉积在诸如玻璃的基底上。 测试结构包括种子层，钉扎层和钉扎层，并且具有变化的第一钉扎层的厚度。 材料的组成和所有其它膜的厚度保持恒定。 测量每个测试结构的净面积磁矩并绘制相对于第一固定层的厚度。 选择最接近零网面磁矩的第一钉扎层的厚度作为传感器的设计点。
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9.发明授权Current-in-the-plane spin valve magnetoresistive sensor with dual metal oxide capping layers 失效具有双金属氧化物覆盖层的电流在平面自旋阀磁阻传感器公开(公告)号：US07190557B2
公开(公告)日：2007-03-13
申请号：US10824701
申请日：2004-04-14
申请人： Jinshan Li , Brian R. York , Alexander M. Zeltser
发明人： Jinshan Li , Brian R. York , Alexander M. Zeltser
IPC分类号： G11B5/39
CPC分类号： B82Y25/00 , B82Y10/00 , G11B5/3929 , G11B2005/3996
摘要： A bottom-pinned current-in-the-plane spin-valve magnetoresistive sensor has a dual metal-oxide capping layer on the top ferromagnetic free layer. The first capping layer is formed on the free layer and is one or more oxides of zinc (Zn). The second capping layer is formed on the first capping layer and is an oxide of a metal having an affinity for oxygen greater than Zn, such as one or more oxides of Ta, Al, Hf, Zr, Y, Ti, W, Si, V, Mg, Cr, Nb, Mo and Mn.
摘要翻译： 底部固定的电流在平面中的自旋阀磁阻传感器在顶部铁磁自由层上具有双金属氧化物覆盖层。 第一覆盖层形成在自由层上，并且是锌（Zn）的一种或多种氧化物。 第二覆盖层形成在第一覆盖层上，并且是具有大于Zn的氧的亲和性的金属的氧化物，例如一种或多种Ta，Al，Hf，Zr，Y，Ti，W，Si， V，Mg，Cr，Nb，Mo和Mn。
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10.发明授权
公开(公告)号：US5567523A
公开(公告)日：1996-10-22
申请号：US325069
申请日：1994-10-19
CPC分类号： G11B5/7315 , G11B5/656 , G11B5/7325 , Y10S428/90 , Y10T428/30
摘要： Magnetic recording media suitable for high density recording are provided by a carbon substrate, a magnetic recording layer, and at least one interlayer therebetween which provides one or more properties beneficial to preventing diffusion, inducing a preferred orientation in the magnetic recording layer and/or promoting adhesion between a carbon substrate and a barium hexaferrite-based magnetic recording layer. Alternatively, the present magnetic recording media may contain two different interlayers, which bar diffusion of carbon atoms from said substrate to said magnetic recording layer, improve adhesion between adjacent layers, induce an orientation in the magnetic recording layer, or any combination thereof. The present recording media are particularly advantageous for perpendicular recording. Processes for producing these magnetic recording media are also provided.
摘要翻译： 适用于高密度记录的磁记录介质由碳基板，磁记录层及其间的至少一个中间层提供，其提供一个或多个有利于防止扩散的特性，在磁记录层中引入优选的取向和/或促进 碳基板和六铁基钡基磁记录层之间的粘合。 或者，本磁记录介质可以包含两个不同的夹层，其将碳原子从所述衬底扩散到所述磁记录层，改善相邻层之间的粘附性，引起磁记录层中的取向或其任何组合。 本记录介质对于垂直记录是特别有利的。 还提供了用于制造这些磁记录介质的方法。
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