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31. 发明申请

US20110262775A1 Self-aligned full side shield PMR and method to make it 有权
标题翻译：自对准全侧盾PMR及其制作方法
公开(公告)号：US20110262775A1
公开(公告)日：2011-10-27
申请号：US13135357
申请日：2011-07-01
申请人： Cherng-Chyi Han , Min Li , Fenglin Liu , Chen-Jung Chien
发明人： Cherng-Chyi Han , Min Li , Fenglin Liu , Chen-Jung Chien
IPC分类号： G11B5/33
CPC分类号： G11B5/1278 , G11B5/112 , G11B5/3146 , G11B5/315 , G11B5/3163 , G11B5/3169 , Y10T29/49043 , Y10T29/49044 , Y10T29/49046 , Y10T428/1193
摘要： A magnetic pole suitable for perpendicular magnetic recording is described. This write pole is symmetrically located relative to its side shields and has at least three additional surfaces that are disposed to lie in planes that are normal to the substrate's top surface.
摘要翻译：描述适用于垂直磁记录的磁极。该写入极相对于其侧屏对称地定位，并且具有至少三个额外的表面，其被设置为位于与基板顶表面垂直的平面中。

32. 发明申请

US20110216447A1 Process of octagonal pole for microwave assisted magnetic recording (MAMR) writer 有权
标题翻译：微波辅助磁记录（MAMR）作者八角极的过程
公开(公告)号：US20110216447A1
公开(公告)日：2011-09-08
申请号：US12660819
申请日：2010-03-03
申请人： Min Li , Cherng-Chyi Han , Kenichi Takano , Joe Smyth
发明人： Min Li , Cherng-Chyi Han , Kenichi Takano , Joe Smyth
IPC分类号： G11B5/33 , G03F7/20
CPC分类号： G11B5/314 , G11B5/1278 , G11B2005/0024
摘要： A microwave assisted magnetic recording writer is disclosed with an octagonal write pole having a top portion including a trailing edge that is self aligned to a spin transfer oscillator (STO). Leading and trailing edges are connected by two sidewalls each having three sections. A first section on each side is coplanar with the STO sidewalls and is connected to a sloped second section at a first corner. Each second section is connected to a third section at a second corner where the distance between second corners is greater than the distance between first corners. A method of forming the writer begins with a trapezoidal shaped write pole in an insulation layer. Two ion beam etch (IBE) steps are used to shape top and middle portions of the write pole and narrow the pole width to
摘要翻译：公开了一种具有八角写磁极的微波辅助磁记录装置，其具有包括与自旋转移振荡器（STO）自对准的后沿的顶部。前缘和后缘由具有三个部分的两个侧壁连接。每侧的第一部分与STO侧壁共面，并且在第一角处连接到倾斜的第二部分。每个第二部分连接到第二角处的第三部分，其中第二角之间的距离大于第一角之间的距离。一种形成写入器的方法从绝缘层中的梯形写入极开始。使用两个离子束蚀刻（IBE）步骤来形成写入极的顶部和中间部分，并且将极宽度窄化到<50nm而不破裂。最后，在STO上形成一个后挡板。

33. 发明申请

US20080297945A1 Method to make a perpendicular magnetic recording head with a bottom side shield 有权
标题翻译：制造具有底侧屏蔽的垂直磁记录头的方法
公开(公告)号：US20080297945A1
公开(公告)日：2008-12-04
申请号：US11809346
申请日：2007-05-31
申请人： Cherng-Chyi Han , Min Li , Fenglin Liu , Lijie Guan
发明人： Cherng-Chyi Han , Min Li , Fenglin Liu , Lijie Guan
IPC分类号： G11B5/127 , G11B5/147 , H04R31/00
CPC分类号： G11B5/3163 , G11B5/1278 , G11B5/3116 , G11B5/315 , Y10T29/49032 , Y10T29/49052
摘要： A perpendicular magnetic recording (PMR) head is fabricated with a pole tip shielded laterally by a separated pair of bottom side shields and shielded from above by an upper shield. The bottom side shields surround a lower portion of the pole tip while the upper portion of the pole tip is surrounded by non-magnetic layers. The bottom shields and the non-magnetic layer form wedge-shaped trench in which the pole tip is formed by a self-aligned plating process. The wedge shape is formed by a RIE process using specific gases applied through a masking layer formed of material that has a slower etch rate than the non-magnetic material or the shield material. A masking layer of Ta, Ru/Ta, TaN or Ti, formed on a non-magnetic layer of alumina that is formed on a shield layer of NiFe and using RIE gases of CH3OH, CO or NH3 or their combinations, produces the desired result. A write gap layer and an upper shield is then formed above the side shields and pole. The resulting structure substantially eliminates track overwrite while maintaining good track definition.
摘要翻译：垂直磁记录（PMR）头被制造成具有通过分离的一对底侧屏蔽横向屏蔽的极尖，并由上屏蔽从上面屏蔽。底侧屏蔽围绕极尖的下部，而极尖的上部被非磁性层包围。底部屏蔽层和非磁性层形成楔形沟槽，其中极尖通过自对准电镀工艺形成。楔形形状通过RIE工艺形成，其使用通过由比非磁性材料或屏蔽材料具有较慢蚀刻速率的材料形成的掩模层施加的特定气体。形成在NiFe的屏蔽层上并使用CH 3 OH，CO或NH 3的RIE气体或其组合的形成在氧化铝的非磁性层上的Ta，Ru / Ta，TaN或Ti的掩蔽层产生期望的结果。然后在侧屏和极上方形成写间隙层和上屏蔽。所得到的结构基本上消除了轨道重写，同时保持良好的轨道定义。

34. 发明申请

US20120069470A1 PMR head with integrated side shield (ISS) 有权
标题翻译：带集成侧护罩（ISS）的PMR头
公开(公告)号：US20120069470A1
公开(公告)日：2012-03-22
申请号：US13373172
申请日：2011-11-07
申请人： Cherng-Chyi Han , Lijie Guan , Joe Smyth , Moris Dovek
发明人： Cherng-Chyi Han , Lijie Guan , Joe Smyth , Moris Dovek
IPC分类号： G11B5/23
CPC分类号： G11B5/1278 , G11B5/3116 , G11B5/3146 , G11B5/315 , G11B5/3163
摘要： A PMR head comprises a substrate, a magnetic pole formed over the substrate, the pole having a pole tip having a cross-sectional tapered shape wherein the pole tip is surrounded by a write gap layer, an integrated shield comprising side shields on the substrate laterally surrounding the pole tip and a trailing shield overlying the pole tip and integral with the side shields.
摘要翻译： PMR头包括衬底，形成在衬底上的磁极，所述极具有具有横截面锥形形状的极尖，其中极尖由写间隙层围绕;集成屏蔽，包括在衬底上的侧屏蔽围绕极尖和覆盖极尖并且与侧护罩成一体的后挡板。

35. 发明授权

US07701666B2 Perpendicular magnetic recording write head with a self aligned stitched write shield 失效
标题翻译：垂直磁记录写头与自对准缝合写屏蔽
公开(公告)号：US07701666B2
公开(公告)日：2010-04-20
申请号：US12001350
申请日：2007-12-11
申请人： Cherng-Chyi Han , Kenichi Takano
发明人： Cherng-Chyi Han , Kenichi Takano
IPC分类号： G11B5/17
CPC分类号： G11B5/1278 , G11B5/3116 , G11B5/3143 , G11B5/3163 , Y10T29/49041 , Y10T29/49044 , Y10T29/49048 , Y10T29/4906 , Y10T29/49062
摘要： A perpendicular magnetic recording (PMR) head with single or double coil layers has a small write shield stitched onto a main write shield. The stitched shield allows the main write pole to produce a vertical write field with sharp vertical gradients that is reduced on both sides of the write pole so that adjacent track erasures are eliminated. From a fabrication point of view, both the main pole and the stitched shield are defined and formed using a single photolithographic process, a trim mask and CMP lapping process so that the main shield can be stitched onto a self-aligned main pole and stitched shield.
摘要翻译：具有单线圈或双线圈层的垂直磁记录（PMR）头具有缝合在主写屏蔽上的小写写屏蔽。拼接屏蔽允许主写柱产生垂直写入场，其尖锐的垂直梯度在写入极的两侧减小，从而消除相邻的轨迹擦除。从制造的角度来看，使用单一光刻工艺，修剪掩模和CMP研磨工艺来限定和形成主极和缝合屏蔽物，使得主屏蔽可以缝合到自对准的主极和缝合屏蔽。

36. 发明申请

US20080094750A1 Method for making a perpendicular magnetic recording write head with a self aligned stitched write shield 失效
标题翻译：一种具有自对准缝合写屏蔽的垂直磁记录写头的方法
公开(公告)号：US20080094750A1
公开(公告)日：2008-04-24
申请号：US12001350
申请日：2007-12-11
申请人： Cherng-Chyi Han , Kenichi Takano
发明人： Cherng-Chyi Han , Kenichi Takano
IPC分类号： G11B5/147
CPC分类号： G11B5/1278 , G11B5/3116 , G11B5/3143 , G11B5/3163 , Y10T29/49041 , Y10T29/49044 , Y10T29/49048 , Y10T29/4906 , Y10T29/49062
摘要： A perpendicular magnetic recording (PMR) head with single or double coil layers has a small write shield stitched onto a main write shield. The stitched shield allows the main write pole to produce a vertical write field with sharp vertical gradients that is reduced on both sides of the write pole so that adjacent track erasures are eliminated. From a fabrication point of view, both the main pole and the stitched shield are defined and formed using a single photolithographic process, a trim mask and CMP lapping process so that the main shield can be stitched onto a self-aligned main pole and stitched shield.
摘要翻译：具有单线圈或双线圈层的垂直磁记录（PMR）头具有缝合在主写屏蔽上的小写写屏蔽。拼接屏蔽允许主写柱产生垂直写入场，其尖锐的垂直梯度在写入极的两侧减小，从而消除相邻的轨迹擦除。从制造的角度来看，使用单一光刻工艺，修剪掩模和CMP研磨工艺来限定和形成主极和缝合屏蔽物，使得主屏蔽可以缝合到自对准的主极和缝合屏蔽。

37. 发明申请

US20080055787A1 High track density recording head 审中-公开
标题翻译：高轨道密度记录头
公开(公告)号：US20080055787A1
公开(公告)日：2008-03-06
申请号：US11975955
申请日：2007-10-23
申请人： Cherng-Chyi Han , Laurie Lauchlan , Xiaomin Liu
发明人： Cherng-Chyi Han , Laurie Lauchlan , Xiaomin Liu
IPC分类号： G11B5/127 , G11B5/33
CPC分类号： G11B5/3163 , G11B5/1272 , G11B5/3116 , Y10T29/49041 , Y10T29/49043 , Y10T29/49044
摘要： For high track density recording, tighter reader and writer track width control are essential. This has been achieved by using the write gap layer as the plating seed on which the upper pole was electro-formed so that the width of the GMR pedestal serves to define the device's write track width.
摘要翻译：对于高轨道密度记录，更紧密的读写器轨道宽度控制是至关重要的。这是通过使用写间隙层作为上电极电镀的电镀种子来实现的，使得GMR基座的宽度用于限定器件的写入轨道宽度。

38. 发明申请

US20070266551A1 ABS through aggressive stitching 失效
标题翻译： ABS通过积极的拼接
公开(公告)号：US20070266551A1
公开(公告)日：2007-11-22
申请号：US11881316
申请日：2007-07-26
申请人： Cherng-Chyi Han , Mao-Min Chen , Laurie Lauchlan , Lei Zhang
发明人： Cherng-Chyi Han , Mao-Min Chen , Laurie Lauchlan , Lei Zhang
IPC分类号： G11B5/127 , H04R31/00
CPC分类号： G11B5/33 , Y10T29/49041 , Y10T29/49043 , Y10T29/49044 , Y10T29/49046 , Y10T29/49048 , Y10T29/4906 , Y10T29/49062 , Y10T29/49064
摘要： Aggressive (i.e. tight tolerance) stitching offers several advantages for magnetic write heads but at the cost of some losses during pole trimming. This problem has been overcome by replacing the alumina filler layer, that is used to protect the stitched pole during trimming, with a layer of electroplated material. Because of the superior step coverage associated with the plating method of deposition, pole trimming can then proceed without the introduction of stresses to the stitched pole while it is being trimmed.
摘要翻译：积极（即紧公差）缝合为磁性写入头提供了几个优点，但是在极修整期间以一些损失为代价。通过用一层电镀材料替换用于在修整期间保护缝合极的氧化铝填料层已经克服了这个问题。由于与沉积电镀方法相关的优越的台阶覆盖，因此可以进行极细修剪，而不会在缝合极被修剪时引入应力。

39. 发明授权

US07221539B2 Stitched shielded pole structure for a perpendicular magnetic recording write head 失效
标题翻译：用于垂直磁记录写头的拼接屏蔽极结构
公开(公告)号：US07221539B2
公开(公告)日：2007-05-22
申请号：US10814077
申请日：2004-03-31
申请人： Kenichi Takano , Cherng-Chyi Han
发明人： Kenichi Takano , Cherng-Chyi Han
IPC分类号： G11B5/31 , G11B5/23
CPC分类号： G11B5/3116 , G11B5/1278 , G11B5/3113 , G11B5/3143
摘要： A PMR write head has a stitched shield formation which results in a strong perpendicular write field with sharp vertical gradients. The shape of the stitched shield is determined by two design parameters, d=½(WSWSLE−WMPTE), and TSWS, where WSWSLE is the width of the leading edge of the stitched shield in the ABS plane, WMPTE is the width of the trailing edge of the main magnetic pole in the ABS plane and TSWS is the thickness of the stitched shield. By a proper choice of these parameters, the write field of the head is sharply limited in the cross-track direction, so that adjacent track erasures are eliminated.
摘要翻译： PMR写头具有缝合的屏蔽结构，其形成具有尖锐垂直梯度的强垂直写入场。缝合屏蔽的形状由两个设计参数d =½（W> SWSLE-> W> MP MP TE TE TE TE SUB SUB SUB SUB SUB SUB SUB SUB SUB SUB SUB SUB SUB SUB and and and and and and and and） W SHSLE 是ABS平面中缝合屏蔽的前缘的宽度，W> MPTE 是ABS平面中主磁极的后缘的宽度而T SWS 是缝合屏蔽的厚度。通过这些参数的适当选择，头部的写入场在交叉轨道方向上被大大限制，从而消除了相邻的轨迹擦除。

40. 发明授权

US07061730B2 Robust hard bias/conductor lead structures for future GMR heads 失效
标题翻译：坚固的硬偏置/导体引线结构，用于未来的GMR磁头
公开(公告)号：US07061730B2
公开(公告)日：2006-06-13
申请号：US10649456
申请日：2003-08-27
申请人： Cheng T. Horng , Mao-Min Chen , Chen-Jung Chien , Cherng-Chyi Han , Chyu-Jiuh Torng , Ru-Ying Tong
发明人： Cheng T. Horng , Mao-Min Chen , Chen-Jung Chien , Cherng-Chyi Han , Chyu-Jiuh Torng , Ru-Ying Tong
IPC分类号： G11B5/39
CPC分类号： B82Y25/00 , G11B5/4853 , G11B5/486 , H01F10/324 , H01F10/3268
摘要： A spin-valve magnetoresistive read element has a thin conductive lead layer of high sheet conductivity, high hardness, high melting point, high corrosion resistance and lacking the propensity for smearing, oozing, electromigration and nodule formation. Said lead layer is formed upon the hard magnetic longitudinal bias layer of an abutted junction spin-valve type magnetoresistive read head and said read head is therefore suitable for reading high density recorded disks at high RPM.
摘要翻译：自旋阀磁阻读取元件具有导电性高，硬度高，熔点高，耐腐蚀性高，缺乏涂抹，渗出，电迁移和结核形成倾向的薄导电铅层。所述引线层形成在接触自旋阀型磁阻读取头的硬磁纵向偏置层上，因此所述读头适用于以高RPM读取高密度记录盘。

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