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1. 发明授权

US07804666B2 Composite shield structure of PMR writer for high track density 有权
标题翻译：用于高轨道密度的PMR写入器的复合屏蔽结构
公开(公告)号：US07804666B2
公开(公告)日：2010-09-28
申请号：US11787016
申请日：2007-04-13
申请人： Lijie Guan , Morris Dovek , Joe Smyth , Yoshitaka Sasaki
发明人： Lijie Guan , Morris Dovek , Joe Smyth , Yoshitaka Sasaki
IPC分类号： G11B5/127
CPC分类号： G11B5/1278 , G11B5/11 , G11B5/3116 , G11B5/3146 , G11B5/315
摘要： Improved writability and a substantial reduction in adjacent track erasure are achieved by incorporating a composite shield structure in a PMR writer. There is a trailing shield formed a certain distance above the top surface of a write pole, a leading shield formed a certain distance below the bottom surface of the write pole, and a partial side shield having a section formed on each side of the write pole. The partial side shield thickness is less than that of the write pole. Each partial side shield section has a side that is parallel to the nearest write pole side and a top surface that is offset from the write pole top surface by 0 to 0.15 microns. A plurality of magnetic connections between two or more shield elements is employed to ensure correct magnetic potential. The large write pole has a flare angle of 45 to 75 degrees.
摘要翻译：通过在PMR写入器中并入复合屏蔽结构来实现改进的可编写性和相邻轨迹擦除的实质性减少。在写极的上表面之上形成一定距离的后屏蔽，在写极的底表面下方形成一定距离的前屏蔽，以及形成在写柱的每一侧上的部分的局部侧屏蔽。部分侧屏蔽厚度小于写入极的厚度。每个局部侧屏蔽部分具有平行于最近的写入极侧的一侧和从写入磁极顶部表面偏移0至0.15微米的顶部表面。采用两个或更多个屏蔽元件之间的多个磁连接来确保正确的磁势。大写字杆的喇叭角为45度至75度。

2. 发明授权

US08379347B2 Perpendicular shield pole writer with tapered main pole and tapered non-magnetic top shaping layer 有权
公开(公告)号：US08379347B2
公开(公告)日：2013-02-19
申请号：US13554275
申请日：2012-07-20
申请人： Lijie Guan , Joe Smyth , Moris Dovek , Yoshitaka Sasaki , Cherng-Chyi Han
发明人： Lijie Guan , Joe Smyth , Moris Dovek , Yoshitaka Sasaki , Cherng-Chyi Han
IPC分类号： G11B5/31 , G11B5/23 , G11B5/11
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.

3. 发明授权

US08625234B2 Graded bevel tapered write pole design for field enhancement 有权
标题翻译：分级斜面锥形写柱设计用于场增强
公开(公告)号：US08625234B2
公开(公告)日：2014-01-07
申请号：US12150553
申请日：2008-04-29
申请人： Lijie Guan , Po-Kang Wang , Moris Dovek , Joe Smyth , Kenichi Takano , Yoshitaka Sasaki
发明人： Lijie Guan , Po-Kang Wang , Moris Dovek , Joe Smyth , Kenichi Takano , Yoshitaka Sasaki
IPC分类号： G11B5/31
CPC分类号： G11B5/1278 , G11B5/232 , G11B5/3116 , G11B5/3146
摘要： A structure and a process for a perpendicular write pole that provides increased magnetic flux at the ABS is disclosed. This is accomplished by increasing the amount of write flux that originates above the write gap, without changing the pole taper at the ABS. Three embodiment of the invention are discussed.
摘要翻译：公开了一种用于在ABS处提供增加的磁通量的垂直写入极的结构和工艺。这是通过增加起始于写入间隙的写入通量的量来实现的，而不改变ABS处的极锥度。讨论本发明的三个实施例。

4. 发明申请

US20090268344A1 Graded bevel tapered write pole design for field enhancement 有权
标题翻译：分级斜面锥形写柱设计用于场增强
公开(公告)号：US20090268344A1
公开(公告)日：2009-10-29
申请号：US12150553
申请日：2008-04-29
申请人： Lijie Guan , Po-Kang Wang , Moris Dovek , Joe Smyth , Kenichi Takano , Yoshitaka Sasaki
发明人： Lijie Guan , Po-Kang Wang , Moris Dovek , Joe Smyth , Kenichi Takano , Yoshitaka Sasaki
IPC分类号： G11B5/23
CPC分类号： G11B5/1278 , G11B5/232 , G11B5/3116 , G11B5/3146
摘要： A structure and a process for a perpendicular write pole that provides increased magnetic flux at the ABS is disclosed. This is accomplished by increasing the amount of write flux that originates above the write gap, without changing the pole taper at the ABS. Three embodiment of the invention are discussed.
摘要翻译：公开了一种用于在ABS处提供增加的磁通量的垂直写入极的结构和工艺。这是通过增加起始于写入间隙的写入通量的量来实现的，而不改变ABS处的极锥度。讨论本发明的三个实施例。

5. 发明授权

US08023231B2 Composite shield structure of PMR writer for high track density 有权
标题翻译：用于高轨道密度的PMR写入器的复合屏蔽结构
公开(公告)号：US08023231B2
公开(公告)日：2011-09-20
申请号：US12807173
申请日：2010-08-30
申请人： Lijie Guan , Moris Dovek , Joe Smyth , Yoshitaka Sasaki
发明人： Lijie Guan , Moris Dovek , Joe Smyth , Yoshitaka Sasaki
IPC分类号： G11B5/127
CPC分类号： G11B5/1278 , G11B5/11 , G11B5/3116 , G11B5/3146 , G11B5/315
摘要： Improved writability and a substantial reduction in adjacent track erasure are achieved by incorporating a composite shield structure in a PMR writer. There is a trailing shield formed a certain distance above the top surface of a write pole, a leading shield formed a certain distance below the bottom surface of the write pole, and a partial side shield having a side shield section formed on each side of the write pole. The partial side shield thickness is less than that of the write pole. Each partial side shield section has a side that is parallel to the nearest write pole side and a top surface that is offset from the write pole top surface by 0 to 0.15 microns. A plurality of magnetic connections between two or more shield elements is employed to ensure correct magnetic potential. The large write pole has a flare angle of 45 to 75 degrees.
摘要翻译：通过在PMR写入器中并入复合屏蔽结构来实现改进的可编写性和相邻轨迹擦除的实质性减少。在写入磁极的上表面之上形成一定距离的尾部屏蔽件，在写入磁极的底表面下方形成一定距离的前屏蔽件，以及形成在屏蔽件的每一侧上的侧面屏蔽部分写柱部分侧屏蔽厚度小于写入极的厚度。每个局部侧屏蔽部分具有平行于最近的写入极侧的一侧和从写入磁极顶部表面偏移0至0.15微米的顶部表面。采用两个或更多个屏蔽元件之间的多个磁连接来确保正确的磁势。大写字杆的喇叭角为45度至75度。

6. 发明申请

US20100328816A1 Composite shield structure of PMR writer for high track density 有权
标题翻译：用于高轨道密度的PMR写入器的复合屏蔽结构
公开(公告)号：US20100328816A1
公开(公告)日：2010-12-30
申请号：US12807173
申请日：2010-08-30
申请人： Lijie Guan , Moris Dovek , Joe Smyth , Yoshitaka Sasaki
发明人： Lijie Guan , Moris Dovek , Joe Smyth , Yoshitaka Sasaki
IPC分类号： G11B5/17
CPC分类号： G11B5/1278 , G11B5/11 , G11B5/3116 , G11B5/3146 , G11B5/315
摘要： Improved writability and a substantial reduction in adjacent track erasure are achieved by incorporating a composite shield structure in a PMR writer. There is a trailing shield formed a certain distance above the top surface of a write pole, a leading shield formed a certain distance below the bottom surface of the write pole, and a partial side shield having a side shield section formed on each side of the write pole. The partial side shield thickness is less than that of the write pole. Each partial side shield section has a side that is parallel to the nearest write pole side and a top surface that is offset from the write pole top surface by 0 to 0.15 microns. A plurality of magnetic connections between two or more shield elements is employed to ensure correct magnetic potential. The large write pole has a flare angle of 45 to 75 degrees.
摘要翻译：通过在PMR写入器中并入复合屏蔽结构来实现改进的可编写性和相邻轨迹擦除的实质性减少。在写入磁极的上表面之上形成一定距离的尾部屏蔽件，在写入磁极的底表面下方形成一定距离的前屏蔽件，以及形成在屏蔽件的每一侧上的侧面屏蔽部分写柱部分侧屏蔽厚度小于写入极的厚度。每个局部侧屏蔽部分具有平行于最近的写入极侧的一侧和从写入磁极顶部表面偏移0至0.15微米的顶部表面。采用两个或更多个屏蔽元件之间的多个磁连接来确保正确的磁势。大写字杆的喇叭角为45度至75度。

7. 发明申请

US20080273277A1 Composite shield structure of PMR writer for high track density 有权
标题翻译：用于高轨道密度的PMR写入器的复合屏蔽结构
公开(公告)号：US20080273277A1
公开(公告)日：2008-11-06
申请号：US11787016
申请日：2007-04-13
申请人： Lijie Guan , Moris Dovek , Joe Smyth , Yoshitaka Sasaki
发明人： Lijie Guan , Moris Dovek , Joe Smyth , Yoshitaka Sasaki
IPC分类号： G11B5/33 , G11B5/127
CPC分类号： G11B5/1278 , G11B5/11 , G11B5/3116 , G11B5/3146 , G11B5/315
摘要： Improved writability and a substantial reduction in adjacent track erasure are achieved by incorporating a composite shield structure in a PMR writer. There is a trailing shield formed a certain distance above the top surface of a write pole, a leading shield formed a certain distance below the bottom surface of the write pole, and a partial side shield having a section formed on each side of the write pole. The partial side shield thickness is less than that of the write pole. Each partial side shield section has a side that is parallel to the nearest write pole side and a top surface that is offset from the write pole top surface by 0 to 0.15 microns. A plurality of magnetic connections between two or more shield elements is employed to ensure correct magnetic potential. The large write pole has a flare angle of 45 to 75 degrees.
摘要翻译：通过在PMR写入器中并入复合屏蔽结构来实现改进的可编写性和相邻轨迹擦除的实质性减少。在写极的上表面之上形成一定距离的后屏蔽，在写极的底表面下方形成一定距离的前屏蔽，以及形成在写柱的每一侧上的部分的局部侧屏蔽。部分侧屏蔽厚度小于写入极的厚度。每个局部侧屏蔽部分具有平行于最近的写入极侧的一侧和从写入磁极顶部表面偏移0至0.15微米的顶部表面。采用两个或更多个屏蔽元件之间的多个磁连接来确保正确的磁势。大写字杆的喇叭角为45度至75度。

8. 发明申请

US20120057257A1 Perpendicular magnetic recoding head with a laminated pole 有权
标题翻译：垂直磁记录头与层叠极
公开(公告)号：US20120057257A1
公开(公告)日：2012-03-08
申请号：US13373251
申请日：2011-11-09
申请人： Kenichi Takano , Lijie Guan , Yuchen Zhou , Joe Smyth , Moris Dovek
发明人： Kenichi Takano , Lijie Guan , Yuchen Zhou , Joe Smyth , Moris Dovek
IPC分类号： G11B5/147 , B05D1/36 , B05D5/00
CPC分类号： G11B5/3116 , G11B5/1278 , G11B5/147 , G11B5/3143
摘要： A laminated write pole layer for a PMR write head is disclosed in which a plurality of “n” magnetic layers and “n−1” non-magnetic spacers are formed in an alternating fashion on a substrate. The non-magnetic spacers promote exchange decoupling or antiferromagnetic coupling between adjacent magnetic layers. Writability is improved when the trailing magnetic layer has a thickness greater than the thickness of other magnetic layers and preferably >25% of the total thickness of the magnetic layers. The thicknesses of the other magnetic layers may be equal or may become progressively smaller with increasing distance from the trailing magnetic layer. In another embodiment, the non-magnetic spacer between the trailing magnetic layer and the nearest magnetic layer is replaced by a magnetic spacer made of a soft magnetic material to promote magnetic coupling and effectively increase the thickness of the trailing magnetic layer.
摘要翻译：公开了一种用于PMR写入头的层叠写入极层，其中在衬底上以交替的方式形成多个“n”个磁性层和“n-1”个非磁性间隔物。非磁性间隔物促进相邻磁性层之间的交换去耦或反铁磁耦合。当后磁性层的厚度大于其它磁性层的厚度，优选磁性层的总厚度的25％时，写入性能得到改善。其他磁性层的厚度可以相等或随着与后磁性层的距离的增加而逐渐变小。在另一个实施例中，后磁性层和最近的磁性层之间的非磁性间隔物被由软磁材料制成的磁性隔离层代替，以促进磁耦合并有效地增加后磁层的厚度。

9. 发明授权

US08056213B2 Method to make PMR head with integrated side shield (ISS) 有权
标题翻译：使用集成侧护板（ISS）制造PMR头的方法
公开(公告)号：US08056213B2
公开(公告)日：2011-11-15
申请号：US12072272
申请日：2008-02-25
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： G11B5/127 , H04R31/00
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。

10. 发明申请

US20090091862A1 Method to make PMR head with integrated side shield (ISS) 有权
标题翻译：使用集成侧护板（ISS）制造PMR头的方法
公开(公告)号：US20090091862A1
公开(公告)日：2009-04-09
申请号：US12072272
申请日：2008-02-25
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： G11B5/33
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。

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