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公开(公告)号：US5132859A
公开(公告)日：1992-07-21
申请号：US571944
申请日：1990-08-23
CPC分类号： B82Y25/00 , G11B5/3113 , G11B5/3153 , H01F10/32 , H01F10/3281 , G11B5/3903 , G11B5/3919 , Y10S428/928
摘要： A magnetic thin film structure comprising a first layer of magnetic material having a low anisotropy H.sub.k magnetically coupled to a second layer magnetic material having a high anisotropy H.sub.k and a low coercivity. The laminate provides a dual anisotropy behavior such that the laminate exhibits a high initial permeability at relatively small applied fields during the read operation and a high anisotropy at high applied fields during the write operation. The laminate of the present invention reduces inductive head domain instability produced by the write operation while maintaining high reproducing sensitivity during the read operation. Use of the higher H.sub.k material also reduces the sensitivity of the head performance to variation in process-induced stresses.
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62.发明授权Apparatus, electrochemical process, and electrolyte for microfinishing stainless steel print bands 失效装置，电化学工艺和用于微细化不锈钢打印带的电解质
公开(公告)号：US5066370A
公开(公告)日：1991-11-19
申请号：US578971
申请日：1990-09-07
CPC分类号： C25F7/00
摘要： An apparatus is provided for electrochemically processing an anodic material in strip form, such as the stainless steel print bands used in high speed printers. Also provided is an electrochemical process including electroetching, electropolishing, or both to obtain microfinishing of the material. Moreover, an electrolyte is provided which is a mixture of phosphoric acid, sulfuric acid, and glycerol in which the material removal rate is controlled by the addition of small amounts of sodium chloride. The electrochemical process operates at ambient temperature over a wide range of current density.
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公开(公告)号：US5057184A
公开(公告)日：1991-10-15
申请号：US505380
申请日：1990-04-06
IPC分类号： B23K26/00 , B23K26/12 , B23K26/18 , B23K26/36 , C04B41/91 , C23F4/02 , G11B5/31 , G11B5/60 , H01L21/302
CPC分类号： G11B5/6005 , B23K26/122 , B23K26/362 , G11B5/3103 , G11B5/3106
摘要： Laser etching of a substrate in a liquid is accomplished by laser induced sonic cavitation at the substrate surface. The preferred substrate is laser energy absorbing and has a finite melting temperature. The preferred liquid is an organic or inorganic inert liquid which does not chemically react with the substrate at room temperature. The laser is preferably a copper vapor laser but a chopped beam cw argon ion laser or a YAG laser adjusted to a low power output sufficient to avoid the formation of a recast layer can also be used. The laser parameters are adjusted for causing the growth and collapse of bubbles at the substrate surface. The laser etching has particular application in the fabrication of rails in magnetic head sliders and dicing of Al.sub.2 O.sub.3 --TiC, TiC, SiC, Si/SiO.sub.2, and laser energy absorbing metal and metal oxides.
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公开(公告)号：US5032945A
公开(公告)日：1991-07-16
申请号：US432649
申请日：1989-11-07
申请人： Bernell E. Argyle , Thomas C. Arnoldussen , Thomas J. Beaulieu , Dean A. Herman, Jr. , Sol Krongelb , Hin P. E. Lee , Daniel A. Nepela , Bojan Petek , Lubomyr T. Romankiw , John C. Slonczewski
发明人： Bernell E. Argyle , Thomas C. Arnoldussen , Thomas J. Beaulieu , Dean A. Herman, Jr. , Sol Krongelb , Hin P. E. Lee , Daniel A. Nepela , Bojan Petek , Lubomyr T. Romankiw , John C. Slonczewski
CPC分类号： B82Y25/00 , H01F10/3268 , H01F41/34 , Y10T29/49032 , Y10T29/49034
摘要： Magnetic thin film structures are disclosed including a laminate of a layer of nonmagnetic material sandwiched between first and second layers of magnetic material and at least one edge closure layer of magnetic material disposed on a side edge of the laminate with the edge closure layer being in magnetic contact with the first and second layers of magnetic material. The edge closure layer eliminates magnetic edge closure domains and magnetic edge-curling walls in the yoke and poletip regions, or in a fluxguide of a magnetic recording head to substantially eliminate Barkhausen noise and wall network instabilities. Multiple layer laminates are also disclosed having a plurality of nonmagnetic layers each of which are sandwiched between layers of magnetic material and wherein the laminate includes edge closure layers that contact all the magnetic layers. Several methods are disclosed for fabricating the laminate. In one class of technique, the side edges are deposited together with a top layer in a single plating operation. In an another embodiment, the side edge closure layers are separately plated. Another embodiment provides for a layer of antiferromagnetic material deposited between the nonmagnetic layer and one of the magnetic layers to provide additional anisotropy.
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公开(公告)号：US4022927A
公开(公告)日：1977-05-10
申请号：US592001
申请日：1975-06-30
IPC分类号： G03F1/20 , H01L21/027 , B05D3/06
CPC分类号： G03F1/20 , Y10S430/143 , Y10S430/153 , Y10S430/167 , Y10S430/168
摘要： A method of constructing a relatively thick, self-supporting mask suitable for electron beam projection processes. Thickness is achieved by multiple steps of coating with resist, exposure and development. Either positive or negative resist may be used for second and subsequent coatings. Second and subsequent exposures are directed through the first relatively thin mask formed and through the substrate to eliminate critical alignment of subsequent masks. When desired thickness is achieved an even thicker frame may be fabricated for support purposes and the mask may then be lifted off the substrate on which it had rested during the fabrication steps.When positive resist is employed, the resist remaining after development is baked on to give added structural strength to the mask. This baked resist can be coated with an additional layer of metal by evaporation or sputtering to give greater mechanical strength. When negative resist is employed, the portions of the resist protected by the relatively thin previously formed mask are removed and additional material is plated to increase the thickness and strength of the mask. The unprotected resist material is then also removed. The completed mask can be further strengthened by evaporating or sputtering an additional layer of metal or oxide.
摘要翻译： 一种构造适合于电子束投影工艺的相对厚的自支撑掩模的方法。 厚度通过涂覆抗蚀剂，曝光和显影的多个步骤实现。 正或负的抗蚀剂可以用于第二和随后的涂层。 第二次和随后的曝光通过形成的第一相对较薄的掩模并穿过基底，以消除随后的掩模的临界对准。 当实现期望的厚度时，可以制造更厚的框架用于支撑目的，并且然后可以在制造步骤期间将掩模从衬底上提升出来。
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公开(公告)号：US3972595A
公开(公告)日：1976-08-03
申请号：US544593
申请日：1975-01-27
CPC分类号： G11C19/0883 , G02F1/091 , G09F9/37 , G11C19/0816
摘要： A magnetizable fluid which serves as a display liquid and which includes a suspension of colloidal magnetic particles is used in a display device. The magnetic fluid is opaque to provide optical contrast. A host liquid is substantially immiscible with the display liquid. The display liquid is carried in a reservoir section which is distributed about the periphery of a display field in the reservoir. Each propagation line of the display field is provided with a bubble generator, which passes bubbles by the input end of each line. A bubble switch coil draws selected bubbles across a gap to reach the associated propagation line in response to a signal impressed on the coil. A uniform rotating magnetic field is provided by a permanent magnet beneath the display or by orthogonal magnetic coils.
摘要翻译： 在显示装置中使用用作显示液体并且包括胶体磁性颗粒的悬浮液的可磁化流体。 磁性流体是不透明的以提供光学对比度。 主体液体与显示液体基本上不混溶。 显示液携带在围绕储存器中的显示区域的周边分布的储存器部分中。 显示区域的每个传播线设置有气泡发生器，其通过每行的输入端传递气泡。 气泡开关线圈响应于施加在线圈上的信号，在间隙上吸引所选择的气泡以到达相关联的传播线。 均匀的旋转磁场由显示器下方的永久磁铁或正交磁性线圈提供。
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公开(公告)号：US08944151B2
公开(公告)日：2015-02-03
申请号：US12128290
申请日：2008-05-28
IPC分类号： F28D15/00 , H01L23/473
CPC分类号： H01L23/4735 , H01L2924/0002 , H05K7/20327 , H05K7/20381 , H05K7/20772 , H01L2924/00
摘要： In one embodiment, the invention is a method and apparatus for chip cooling. One embodiment of an apparatus for cooling a heat-generating device includes an inlet for receiving a fluid, a manifold comprising a plurality of apertures formed therein for decreasing the pressure of the fluid from a first pressure by adiabatic expansion for impinging the fluid on the heat-generating device once the pressure of the fluid is decreased from the first pressure.
摘要翻译： 在一个实施例中，本发明是用于芯片冷却的方法和装置。 用于冷却发热装置的装置的一个实施例包括用于接收流体的入口，歧管，其包括形成在其中的多个孔，用于通过绝热膨胀减小来自第一压力的流体的压力，以将流体冲击在热 一旦流体的压力从第一压力减小，则产生装置。
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公开(公告)号：US08427780B2
公开(公告)日：2013-04-23
申请号：US12358503
申请日：2009-01-23
IPC分类号： G11B5/17
CPC分类号： G11B5/29 , G11B5/1272 , G11B5/17 , G11B5/1871
摘要： A magnetic head in one embodiment includes a bottom pole; a top pole positioned above a plane extending through the bottom pole and parallel to a plane of deposition of the bottom pole, wherein the top pole is at least partially offset from the bottom pole in a direction parallel to a plane of deposition of the top pole; a first write gap in the top pole; and a first coil for generating a magnetic flux across the first write gap. A method in one embodiment includes forming a bottom pole; forming a top pole above a plane extending through the bottom pole and parallel to a plane of deposition of the bottom pole, wherein the top pole is at least partially offset from the bottom pole in a direction parallel to a plane of deposition of the top pole, wherein at least one write gap is formed in the top pole; forming side poles for coupling the top and bottom poles; and forming a first coil for generating a magnetic flux across the first write gap.
摘要翻译： 一个实施例中的磁头包括底极; 位于平面延伸穿过底极并平行于底极沉积平面的平面上方的顶极，其中顶极在平行于顶极沉积平面的方向上至少部分地偏离底极 ; 顶极的第一个写入间隙; 以及用于在所述第一写入间隙上产生磁通量的第一线圈。 一个实施例中的方法包括形成底极; 在平行于所述底极的平面的平面上形成顶极，并且平行于所述底极的沉积平面，其中所述顶极至少部分地偏离所述底极，所述方向平行于所述顶极的沉积平面 ，其中在所述顶极中形成至少一个写入间隙; 形成用于联接顶极和底极的侧极; 以及形成用于在所述第一写入间隙上产生磁通量的第一线圈。
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69.发明授权
公开(公告)号：US5331728A
公开(公告)日：1994-07-26
申请号：US686782
申请日：1991-05-13
申请人： Bernell E. Argyle , Thomas C. Arnoldussen , Thomas J. Beaulieu , Dean A. Herman, Jr. , Sol Krongelb , Hin P. E. Lee , Daniel A. Nepela , Bojan Petek , Lubomyr T. Romankiw , John C. Slonczewski
发明人： Bernell E. Argyle , Thomas C. Arnoldussen , Thomas J. Beaulieu , Dean A. Herman, Jr. , Sol Krongelb , Hin P. E. Lee , Daniel A. Nepela , Bojan Petek , Lubomyr T. Romankiw , John C. Slonczewski
CPC分类号： B82Y25/00 , H01F10/3268 , H01F41/34 , Y10T29/49032 , Y10T29/49034
摘要： Magnetic thin film structures including a laminate of a layer of nonmagnetic material sandwiched between first and second layers of magnetic material and at least one edge closure layer of magnetic material disposed on a side edge of the laminate with the edge closure layer being in magnetic contact with the first and second layers of magnetic material. The edge closure layer eliminates magnetic edge closure domains and magnetic edge-curling walls in the yoke and poletip regions, or in a fluxguide of a magnetic recording head to substantially eliminate Barkhausen noise and wall network instabilities. Multiple layer laminates are also disclosed having a plurality of nonmagnetic layers each of which are sandwiched between layers of magnetic material and wherein the laminate includes edge closure layers that contact all the magnetic layers. Several methods are disclosed for fabricating the laminate. In one class of technique, the side edges are deposited together with a top layer in a single plating operation. In an another embodiment, the side edge closure layers are separately plated. Another embodiment provides for a layer of antiferromagnetic material deposited between the nonmagnetic layer and one of the magnetic layers to provide additional anisotropy.
摘要翻译： 磁性薄膜结构包括夹在第一和第二磁性材料层之间的非磁性材料层的叠层，以及设置在层压板的侧边缘上的至少一个磁性材料的边缘封闭层，边缘封闭层与 第一层和第二层磁性材料。 边缘封闭层消除磁轭和poletip区域中的磁边缘封闭域和磁性边缘卷曲壁，或者在磁记录头的磁通导向器中消除巴克豪森噪声和墙网络不稳定性。 还公开了多层层压板，其具有多个非磁性层，每个非磁性层都夹在磁性材料层之间，并且其中层压板包括接触所有磁性层的边缘封闭层。 公开了制造层压板的几种方法。 在一类技术中，在单个电镀操作中，侧边缘与顶层一起沉积在一起。 在另一个实施例中，侧边缘封闭层被单独地电镀。 另一个实施例提供沉积在非磁性层和一个磁性层之间的反铁磁材料层，以提供额外的各向异性。
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公开(公告)号：US5312532A
公开(公告)日：1994-05-17
申请号：US6070
申请日：1993-01-15
申请人： Panayotis Andricacos , Moritz Branger , Robert M. Browne , John O. Dukovic , Benjamin W. B. Fu , Robert W. Hitzfeld , Matteo Flotta , Donald R. McKenna , Lubomyr T. Romankiw , Saeed Sahami
发明人： Panayotis Andricacos , Moritz Branger , Robert M. Browne , John O. Dukovic , Benjamin W. B. Fu , Robert W. Hitzfeld , Matteo Flotta , Donald R. McKenna , Lubomyr T. Romankiw , Saeed Sahami
IPC分类号： C25D17/00 , C25D7/12 , C25D17/10 , C25D19/00 , C25D21/00 , C25D21/10 , G11B5/31 , C25D17/02 , C25D21/12
CPC分类号： C25D21/10 , C25D17/10 , G11B5/3163 , Y10S204/07
摘要： A multi-compartment electroplating system for electroplating two or more objects simultaneously such that the electrodeposited material is substantially uniform in thickness and composition. Electroplating solution is circulated between a reservoir and a multi-compartment tank which has one cathode-paddle-anode (CPA) assembly for each compartment. Each CPA assembly has an anode, a cathode adapted for holding a wafer and employing a single thieving electrode which covers all of the floor of the compartment not covered by the wafer, and a paddle. Also included is a cover which houses a single linear motor for driving all of the paddles in synchrony.
摘要翻译： 一种用于同时电镀两个或更多物体的多室电镀系统，使得电沉积材料的厚度和组成基本均匀。 电镀溶液在储存器和多室容器之间循环，其具有用于每个隔室的一个阴极 - 阳极（CPA）组件。 每个CPA组件具有阳极，适于保持晶片的阴极和使用覆盖未被晶片覆盖的隔室的所有地板的单个电击电极和桨。 还包括一个盖子，其上装有用于同时驱动所有桨叶的单个线性马达。
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