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51. 发明授权

US08118990B2 Electroplated magnetic film for read-write applications 有权
标题翻译：用于读写应用的电镀磁膜
公开(公告)号：US08118990B2
公开(公告)日：2012-02-21
申请号：US11431261
申请日：2006-05-10
申请人： Xiaomin Liu , Feiyue Li , Cherng-Chyi Han
发明人： Xiaomin Liu , Feiyue Li , Cherng-Chyi Han
IPC分类号： C25D3/56
CPC分类号： C25D3/562 , C25D5/18 , G11B5/3163 , H01F41/26
摘要： A process is described for the fabrication, through electrodeposition, of FexCoyNiz (x=60-71, y=25-35, z=0-5) films that have, in their as-deposited form, a saturation magnetization of at least 24 kG and a coercivity of less than 0.3 Oe. A key feature is the addition of aryl sulfinates to the plating bath along with a suitable seed layer.
摘要翻译：描述了通过电沉积制造FexCoyNiz（x = 60-71，y = 25-35，z = 0-5）膜的方法，其具有以其沉积形式的至少24个饱和磁化强度 kG，矫顽力小于0.3 Oe。一个关键的特征是在适当的种子层的同时向镀浴中加入芳基亚硫酸盐。

52. 发明授权

US07657992B2 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：US07657992B2
公开(公告)日：2010-02-09
申请号：US12001429
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： G11B5/11 , 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 method of making a perpendicular magnetic recording (PMR) head with single or double coil layers and with 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：一种制造具有单线圈或双线圈层的垂直磁记录（PMR）头和缝合在主写屏蔽上的小写保护层的方法。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。

53. 发明申请

US20090116145A1 Perpendicular shield pole writer with tapered main pole and tapered non-magnetic top shaping layer 有权
标题翻译：垂直屏蔽极写入器，带锥形主极和锥形非磁性顶部成型层
公开(公告)号：US20090116145A1
公开(公告)日：2009-05-07
申请号：US11982597
申请日：2007-11-02
申请人： Liejie Guan , Joe Smyth , Moris Dovek , Yoshitaka Sasaki , Cherng-Chyi Han
发明人： Liejie Guan , Joe Smyth , Moris Dovek , Yoshitaka Sasaki , Cherng-Chyi Han
IPC分类号： G11B5/127
CPC分类号： G11B5/3116 , G11B5/1278 , G11B5/23 , G11B5/3163
摘要： A PMR writer with a tapered main pole layer and tapered non-magnetic top-shaping layer is disclosed that minimizes trailing shield saturation. A second non-magnetic top shaping layer may be employed to reduce the effective TH size while the bulk of the trailing shield is thicker to allow a larger process window for back end processing. A sloped surface with one end at the ABS and a second end 0.05 to 0.3 microns from the ABS is formed at a 10 to 80 degree angle to the ABS and includes a sloped surface on the upper portion of the main pole layer and on the non-magnetic top shaping layer. An end is formed on the second non-magnetic top shaping layer at the second end of the sloped surface followed by forming a conformal write gap layer and then depositing the trailing shield on the write gap layer and along the ABS.
摘要翻译：公开了一种具有锥形主极层和锥形非磁性顶部成形层的PMR写入器，其使拖尾屏蔽饱和度最小化。可以采用第二非磁性顶部成形层来减小有效的TH尺寸，同时尾部屏蔽的大部分较厚以允许用于后端处理的较大的工艺窗口。在ABS处具有一端的倾斜表面和距离ABS的0.05至0.3微米的第二端与ABS形成10至80度的角度，并且包括在主极层的上部上的非倾斜表面，磁顶成型层。在倾斜表面的第二端处在第二非磁性顶部成形层上形成端部，随后形成共形写入间隙层，然后将后部屏蔽层沉积在写入间隙层上并沿着ABS。

54. 发明申请

US20080094759A1 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：US20080094759A1
公开(公告)日：2008-04-24
申请号：US12001429
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： G11B5/10
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 method of making a perpendicular magnetic recording (PMR) head with single or double coil layers and with 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：一种制造具有单线圈或双线圈层的垂直磁记录（PMR）头和缝合在主写屏蔽上的小写保护层的方法。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。

55. 发明申请

US20070261967A1 Electroplated magnetic film for read-write applications 有权
标题翻译：用于读写应用的电镀磁膜
公开(公告)号：US20070261967A1
公开(公告)日：2007-11-15
申请号：US11431261
申请日：2006-05-10
申请人： Xiaomin Liu , Feiyue Li , Cherng-Chyi Han
发明人： Xiaomin Liu , Feiyue Li , Cherng-Chyi Han
IPC分类号： C25D3/56
CPC分类号： C25D3/562 , C25D5/18 , G11B5/3163 , H01F41/26
摘要： A process is described for the fabrication, through electrodeposition, of FexCoyNiz (x=60-71, y=25-35, z=0-5) films that have, in their as-deposited form, a saturation magnetization of at least 24 kG and a coercivity of less than 0.3 Oe. A key feature is the addition of aryl sulfinates to the plating bath along with a suitable seed layer.
摘要翻译：描述了通过电沉积制造Fe x Sb x Ni x Z x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x（x = 35，z = 0-5）具有其沉积形式的至少24kG的饱和磁化强度和小于0.3Oe的矫顽力的膜。一个关键的特征是在适当的种子层的同时向镀浴中加入芳基亚硫酸盐。

56. 发明授权

US07251102B2 ABS through aggressive stitching 失效
标题翻译： ABS通过积极的拼接
公开(公告)号：US07251102B2
公开(公告)日：2007-07-31
申请号：US10782496
申请日：2004-02-19
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
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 electro-plated 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代替在修整期间用于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。

57. 发明授权

US07196876B2 Method to make abutted junction GMR head without lead shunting 失效
标题翻译：在没有引线分流的情况下制造对接接头GMR头的方法
公开(公告)号：US07196876B2
公开(公告)日：2007-03-27
申请号：US10236359
申请日：2002-09-06
申请人： Cherng-Chyi Han , Mao-Min Chen , Pokang Wang
发明人： Cherng-Chyi Han , Mao-Min Chen , Pokang Wang
IPC分类号： G11B5/39 , G11B5/33 , G11B5/127
CPC分类号： B82Y25/00 , B82Y10/00 , G01R33/093 , G11B5/3116 , G11B5/313 , G11B5/3163 , G11B5/3903 , Y10T29/49044 , Y10T29/49052
摘要： A method for forming an abutted junction GMR bottom spin valve sensor in which the free layer has a maximum effective length due to the elimination or minimization of bias layer and conducting lead layer overspreading onto the sensor element and the consequent reduction of current shunting. The overspreading is eliminated by forming a thin dielectric layer on the upper surface of the sensor element. When the biasing and conducting leads are formed on the abutted junction, they overspread onto this layer and the overspread can be removed by an ion-milling process during which the dielectric layer protects the sensor.
摘要翻译：用于形成邻接结GMR底部自旋阀传感器的方法，其中自由层由于偏置层的消除或最小化而导致最大有效长度，并且导致引线层过度传播到传感器元件上，从而减少了电流分流。通过在传感器元件的上表面上形成薄的电介质层来消除超扩展。当偏置和导电引线形成在邻接接头上时，它们被扩展到该层上，并且可以通过离子铣削工艺去除超扩展，其中电介质层保护传感器。

58. 发明授权

US07106558B2 Biased spin valve head with canted adjacent layer and current channeling layer 失效
公开(公告)号：US07106558B2
公开(公告)日：2006-09-12
申请号：US10868713
申请日：2004-06-15
申请人： Kochan Ju , You Feng Zheng , Mao-Min Chen , Cherng-Chyi Han , Charles Lin
发明人： Kochan Ju , You Feng Zheng , Mao-Min Chen , Cherng-Chyi Han , Charles Lin
IPC分类号： G11B5/33
CPC分类号： B82Y25/00 , B82Y10/00 , G11B5/313 , G11B5/3163 , G11B5/3903 , G11B2005/3996
摘要： A magnetic read head with reduced side reading characteristics is described. This design combines use of a current channeling layer (CCL) with stabilizing longitudinal bias layers whose magnetization direction is canted relative to that of the free layer easy axis and that of the pinned layer (of the GMR). This provides several advantages: First, the canting of the free layer at the side region results in a reduction of side reading by reducing magnetic sensitivity in that region. Second, the CCL leads to a narrow current flow profile at the side region, therefore producing a narrow track width definition. A process for making this device is described. Said process allows some of the requirements for interface cleaning associated with prior art processes to be relaxed.

59. 发明授权

US06826015B2 Flux concentrating stitched write head 失效
标题翻译：助焊剂集中缝合写头
公开(公告)号：US06826015B2
公开(公告)日：2004-11-30
申请号：US10453048
申请日：2003-06-03
申请人： Mao-Min Chen , Pokang Wang , Cherng-Chyi Han
发明人： Mao-Min Chen , Pokang Wang , Cherng-Chyi Han
IPC分类号： G11B531
CPC分类号： G11B5/3116 , G11B5/313 , G11B5/3146 , G11B5/3163 , Y10T29/49032 , Y10T29/49041 , Y10T29/49044 , Y10T29/49046 , Y10T29/49048 , Y10T29/49052
摘要： A flux concentrating stitched write head design for high data rate applications is provided. The flux concentration is achieved by means of a non-magnetic step embedded into a portion of the lower magnetic pole of the write head, just beneath the write gap layer. The design permits extremely short throat heights, which will be required by future high data rate applications.
摘要翻译：提供了一种用于高数据速率应用的通量集中缝合写头设计。磁通量集中通过嵌入写入头下部磁极的一部分的非磁性步骤来实现，正好位于写入间隙层的正下方。该设计允许极短的喉部高度，这将是未来高数据速率应用所需要的。

60. 发明授权

US06469875B1 Stitched write head design having a sunken shared pole 失效
标题翻译：拼接写头设计有一个凹陷的共享极点
公开(公告)号：US06469875B1
公开(公告)日：2002-10-22
申请号：US09525672
申请日：2000-03-15
申请人： Mao-Min Chen , Po-Kang Wang , Cherng-Chyi Han
发明人： Mao-Min Chen , Po-Kang Wang , Cherng-Chyi Han
IPC分类号： G11B539
CPC分类号： B82Y25/00 , B82Y10/00 , G11B5/3163 , G11B5/3903 , G11B5/3967 , G11B2005/3996 , Y10T29/49048
摘要： A structure and a method for a stitched write head having a sunken share pole. The method includes forming a bottom coil dielectric layer over the first half shared pole. Coils are formed over the bottom coil dielectric layer. Next, second half shared poles (P1) are formed over the first half shared pole (S2). We form a top coil dielectric layer over the structure. In a key step, we chemical-mechanical polish the top coil dielectric layer. A write gap layer (WG) is formed over the front second half shared pole and the top coil dielectric layer over the coils. An upper pole (P3) and hard mask are formed over the write gap layer. We etch the write gap layer and the second half shared pole (P1) using the upper pole as an etch mask to remove a portion of the second half shared pole (P1) adjacent to the write gap layer thereby forming a partially trimmed pole.
摘要翻译：一种具有凹陷的共享极的缝合写头的结构和方法。该方法包括在第一半共享极上形成底部线圈电介质层。线圈形成在底部线圈电介质层上。接下来，在第一半共享极（S2）上形成第二半共享极（P1）。我们在结构上形成顶层线圈介电层。在关键步骤中，我们化学机械抛光顶层线圈介电层。写入间隙层（WG）形成在线圈上的前第二半共享极和顶部线圈电介质层上。在写间隙层上形成上极（P3）和硬掩模。我们使用上极蚀刻写间隙层和第二半共享极（P1）作为蚀刻掩模，以去除与写间隙层相邻的第二半共享极（P1）的一部分，从而形成部分修整的极。

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