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1. 发明授权

US08553360B2 Magnetic recording head having write pole with higher magnetic moment towards trailing edge 有权
标题翻译：磁记录头具有朝向后缘的较高磁矩的写极
公开(公告)号：US08553360B2
公开(公告)日：2013-10-08
申请号：US12634547
申请日：2009-12-09
申请人： Liubo Hong
发明人： Liubo Hong
IPC分类号： G11B5/147 , G11B5/187
CPC分类号： G11B5/3116 , G11B5/1278 , G11B5/3146 , G11B5/315 , G11B5/3163
摘要： Embodiments of the invention provide a magnetic recording head including a write pole having increasing magnetic moment from a leading edge of the write pole to a trailing edge of the write pole, and methods for manufacturing the same. The write pole may be formed with a plurality of different magnetic material layers having different magnetic moments. A first magnetic layer may be formed with a first magnetic material adjacent a leading edge of the write pole. A second magnetic layer having a greater moment may be formed on the first magnetic layer, thereby increasing the magnetic moment from the leading edge of the write pole to the trailing edge of the write pole.
摘要翻译：本发明的实施例提供了一种磁记录头，其包括具有从写入极的前沿到写入极的后沿的磁矩增加的写入极及其制造方法。写极可以形成有具有不同磁矩的多个不同的磁性材料层。第一磁性层可以形成有与写入极的前沿相邻的第一磁性材料。可以在第一磁性层上形成具有更大力矩的第二磁性层，从而增加从写入极的前沿到写入极的后沿的磁矩。

2. 发明授权

US08524095B2 Process to make PMR writer with leading edge shield (LES) and leading edge taper (LET) 失效
公开(公告)号：US08524095B2
公开(公告)日：2013-09-03
申请号：US12954485
申请日：2010-11-24
申请人： Liubo Hong , Fenglin Liu , Qiping Zhong , Honglin Zhu
发明人： Liubo Hong , Fenglin Liu , Qiping Zhong , Honglin Zhu
IPC分类号： B44C1/22
CPC分类号： G11B5/315 , G11B5/1278 , G11B5/3116 , G11B5/3146 , G11B5/3163
摘要： Methods for fabrication of leading edge shields and tapered magnetic poles with a tapered leading edge are provided. The leading edge shield may be formed by utilizing a CMP stop layer. The CMP stop layer may aid in preventing over polishing of the magnetic material. For the tapered magnetic poles with a tapered leading edge, a magnetic material is deposited on a planarized surface, a patterned resist material is formed, and exposed magnetic material is etched to form at least one tapered surface of the magnetic material.

3. 发明授权

US08427791B2 Magnetic tunnel junction having a magnetic insertion layer and methods of producing the same 有权
标题翻译：具有磁性插入层的磁性隧道结及其制造方法
公开(公告)号：US08427791B2
公开(公告)日：2013-04-23
申请号：US12953233
申请日：2010-11-23
申请人： Zheng Gao , Liubo Hong , Richard Hsiao , Sangmun Oh , Chando Park , Chang-Man Park
发明人： Zheng Gao , Liubo Hong , Richard Hsiao , Sangmun Oh , Chando Park , Chang-Man Park
IPC分类号： G11B5/39
CPC分类号： G11B5/3909 , B82Y10/00 , B82Y25/00 , B82Y40/00 , G01R33/098 , G11B5/3163 , G11B2005/3996 , H01F10/3254 , H01F10/3272 , H01F10/3286 , H01F10/3295 , H01F41/307 , H01L43/08 , H01L43/12 , Y10T428/1114 , Y10T428/1121
摘要： According to one embodiment, a magnetic head includes a barrier layer having a crystalline structure, a first magnetic layer above the barrier layer, a magnetic insertion layer above the first magnetic layer, and a second magnetic layer above the magnetic insertion layer, the second magnetic layer having a textured face-centered cubic (fcc) structure. The first magnetic layer comprises a high spin polarization magnetic material having a crystalline structure and a characteristic of crystallization being more similar to the crystalline structure of the barrier layer than a crystalline structure of the second magnetic layer and the magnetic insertion layer comprises a magnetic material having a crystalline structure and a characteristic of crystallization being more similar to the crystalline structure of the second magnetic layer than the crystalline structure of the barrier layer. Additional magnetic head structures and methods of producing magnetic heads are described according to more embodiments.
摘要翻译：根据一个实施例，磁头包括具有晶体结构的阻挡层，阻挡层上方的第一磁性层，第一磁性层上方的磁性插入层和磁性插入层上方的第二磁性层，第二磁性层层具有纹理的面心立方（fcc）结构。第一磁性层包括具有晶体结构的高自旋极化磁性材料，并且与第二磁性层的结晶结构相比，结晶的结晶特性与阻挡层的晶体结构更相似，并且磁性插入层包括具有与阻挡层的晶体结构相比，晶体结构和结晶特性更类似于第二磁性层的晶体结构。根据更多实施例描述附加的磁头结构和制造磁头的方法。

4. 发明授权

US08349197B2 Method for manufacturing a perpendicular magnetic write head having a tapered write pole and non-magnetic bump structure 有权
标题翻译：具有锥形写磁极和非磁性凸块结构的垂直写磁头的制造方法
公开(公告)号：US08349197B2
公开(公告)日：2013-01-08
申请号：US12623206
申请日：2009-11-20
申请人： Liubo Hong , Wen-Chien D. Hsiao , Yimin Hsu , Yi Zheng
发明人： Liubo Hong , Wen-Chien D. Hsiao , Yimin Hsu , Yi Zheng
IPC分类号： B44C1/22
CPC分类号： G11B5/1278 , G11B5/3116 , G11B5/3143 , G11B5/315 , G11B5/3163 , Y10T29/49048
摘要： A method for manufacturing a magnetic write head having a write pole and a trailing wrap around magnetic shield, and having a non-magnetic step layer and a non-magnetic bump to provide additional spacing between the write pole and the trailing wrap around shield at a location removed from the air bearing surface. A magnetic write pole material is deposited on a substrate and a non-magnetic step layer is deposited over the write pole. A reactive ion milling can he used to pattern the non-magnetic step layer to have a front edge that is located a desired distance from an air hearing surface. A patterning and ion milling process is then performed to define a write pole, and then a layer of alumina is deposited and ion milled to from a tapered, non-magnetic bump at the front the non-magnetic step layer.
摘要翻译：一种用于制造磁性写入头的方法，该写入磁头在磁屏蔽周围具有写入磁极和尾部缠绕，并且具有非磁性阶跃层和非磁性凸起，以在写入磁极和屏蔽之间的后续缠绕在一个位置从空气轴承表面移除。磁性写入极材料沉积在衬底上，非磁性步骤层沉积在写入极上。他可以使用反应离子研磨来对非磁性步骤层进行图案化以具有位于距离空气听力表面所需距离的前边缘。然后进行图形化和离子研磨处理以限定写入极，然后沉积氧化铝层，并从非磁性阶梯层前面的锥形非磁性凸块离子研磨。

5. 发明授权

US08216481B2 Process for fabricating ultra-narrow dimension magnetic sensor 有权
标题翻译：制造超窄尺寸磁传感器的工艺
公开(公告)号：US08216481B2
公开(公告)日：2012-07-10
申请号：US12581030
申请日：2009-10-16
申请人： Liubo Hong
发明人： Liubo Hong
IPC分类号： B44C1/22
CPC分类号： B82Y10/00 , B82Y25/00 , G01R33/098 , G11B5/3116 , G11B5/3163 , G11B5/3909 , G11B2005/3996
摘要： A method for manufacturing a magnetoresistive read sensor that allows the sensor to be constructed with clean well defined side junctions, even at very narrow track widths. The method involves using first and second etch mask layers, that are constructed of materials such that the second mask (formed over the first mask) can act as a mask during the patterning of the first mask (bottom mask). The first mask has a well defined thickness that is defined by deposition and which is not affected by the etching processes used to define the mask. This allows the total ion milling etch mask thickness to be well controlled before the ion milling process used to define the sensor side walls.
摘要翻译：一种用于制造磁阻读取传感器的方法，即使在非常窄的轨道宽度下也能够使传感器构造成具有清晰良好定义的侧面接合点。该方法包括使用由材料构成的第一和第二蚀刻掩模层，使得第二掩模（形成在第一掩模上）可以在图案化第一掩模（底掩模）期间用作掩模。第一掩模具有由沉积限定的良好限定的厚度，并且其不受用于限定掩模的蚀刻工艺的影响。这允许在用于限定传感器侧壁的离子铣削过程之前，完全控制总离子铣削蚀刻掩模厚度。

6. 发明申请

US20120161264A1 JUNCTION ISOLATION FOR MAGNETIC READ SENSOR 有权
标题翻译：磁性读取传感器的连接隔离
公开(公告)号：US20120161264A1
公开(公告)日：2012-06-28
申请号：US12976748
申请日：2010-12-22
申请人： LIUBO HONG , Guangli Liu
发明人： LIUBO HONG , Guangli Liu
IPC分类号： H01L29/82 , H01L21/02
CPC分类号： H01L43/12 , B82Y25/00 , G01R33/093 , G11B5/3912 , G11B5/3932 , G11B5/398
摘要： Embodiments generally relate to a magnetic read sensor and a method for its manufacture. A multi-layer insulating material may be used to cover both the first shield layer and also the sidewalls of the sensor structure in the magnetic read sensor. The first insulating layer of the multi-layer insulating material may be deposited by an ion beam sputtering process in a chamber that does not have any oxygen gas flowing into it so that oxygen diffusion into the sensor structure is reduced or eliminated. Then, a second insulating layer of the multi-layer insulating material may be deposited by atomic layer deposition such that the second insulating layer has a greater quality than the first insulating layer. The higher quality increases the breakdown voltage for the magnetic read sensor. Thus, the magnetic read sensor of the present invention has an effective insulating portion that increases the breakdown voltage without sensor damage.
摘要翻译：实施例通常涉及磁读取传感器及其制造方法。多层绝缘材料可用于覆盖磁读取传感器中的第一屏蔽层以及传感器结构的侧壁。多层绝缘材料的第一绝缘层可以通过离子束溅射工艺沉积在不具有任何氧气流入其中的腔室中，从而减少或消除了扩散到传感器结构中的氧气。然后，可以通过原子层沉积来沉积多层绝缘材料的第二绝缘层，使得第二绝缘层具有比第一绝缘层更大的质量。更高的质量增加了磁读取传感器的击穿电压。因此，本发明的磁读取传感器具有有效的绝缘部分，其在没有传感器损坏的情况下增加击穿电压。

7. 发明授权

US08201320B2 Method for manufacturing a magnetic write head having a wrap around shield that is magnetically coupled with a leading magnetic shield 有权
标题翻译：一种用于制造具有与领先磁屏蔽磁耦合的围绕屏蔽的磁性写入头的方法
公开(公告)号：US08201320B2
公开(公告)日：2012-06-19
申请号：US12641242
申请日：2009-12-17
申请人： Donald G. Allen , Yingjian Chen , Andrew Chiu , Liubo Hong , Wen-Chien D. Hsiao , Edward H. P. Lee , Fenglin Liu , Katalin Pentek , Kyusik Shin , Yi Zheng , Qiping Zhong , Honglin Zhu
发明人： Donald G. Allen , Yingjian Chen , Andrew Chiu , Liubo Hong , Wen-Chien D. Hsiao , Edward H. P. Lee , Fenglin Liu , Katalin Pentek , Kyusik Shin , Yi Zheng , Qiping Zhong , Honglin Zhu
IPC分类号： H04R31/00 , G11B5/127
CPC分类号： G11B5/11 , G11B5/1278 , G11B5/3116 , G11B5/3146 , G11B5/315 , G11B5/3163 , Y10T29/49039 , Y10T29/49043 , Y10T29/49044 , Y10T29/49046 , Y10T29/49048 , Y10T29/49052
摘要： A method for manufacturing a magnetic write head having a leading magnetic shield and a trailing magnetic shield that are arranged to prevent the lost of magnetic write field to the trailing magnetic shield. The write head includes a non-magnetic step layer that provides additional spacing between the trailing magnetic shield and the write pole at a region removed from the air bearing surface.
摘要翻译：一种用于制造具有前磁屏蔽和后磁屏蔽的磁写头的方法，该方法被布置为防止向后磁屏蔽的磁写磁场的损失。写头包括非磁性阶梯层，其在从空气轴承表面移除的区域处在后磁屏蔽和写极之间提供额外的间隔。

8. 发明申请

US20120127615A1 TMR READER STRUCTURE AND PROCESS FOR FABRICATION 有权
标题翻译： TMR读取器结构和制造过程
公开(公告)号：US20120127615A1
公开(公告)日：2012-05-24
申请号：US12954334
申请日：2010-11-24
申请人： Liubo Hong , Honglin Zhu , Tsann Lin , Zheng Gao
发明人： Liubo Hong , Honglin Zhu , Tsann Lin , Zheng Gao
IPC分类号： G11B5/33 , G01R33/32
CPC分类号： G11B5/3912 , G01R33/098 , G11B5/3163 , G11B5/3932
摘要： The present invention generally relates to a TMR reader and a method for its manufacture. The TMR reader discussed herein adds a shield layer to the sensor structure. The shield layer is deposited over the capping layer so that the shield layer and the capping layer collectively protect the free magnetic layer within the sensor structure from damage during further processing. Additionally, the hard bias layer is shaped such that the entire hard bias layer underlies the hard bias capping layer so that a top lead layer is not present. By eliminating the top lead layer and including a shield layer within the sensor structure, the read gap is reduced while still protecting the free magnetic layer during later processing.
摘要翻译：本发明一般涉及TMR读取器及其制造方法。本文中讨论的TMR读取器将一个屏蔽层添加到传感器结构。屏蔽层沉积在覆盖层上，使得屏蔽层和覆盖层共同保护传感器结构内的自由磁性层免受进一步处理期间的损坏。此外，硬偏压层被成形为使得整个硬偏压层位于硬偏压覆盖层的下面，使得顶部引线层不存在。通过消除顶部引线层并且在传感器结构内包括屏蔽层，读取间隙减小，同时在稍后处理期间仍然保护自由磁性层。

9. 发明申请

US20110146062A1 METHOD FOR MANUFACTURING A MAGNETIC WRITE HEAD HAVING A WRAP AROUND SHIELD THAT IS MAGNETICALLY COUPLED WITH A LEADING MAGNETIC SHIELD 有权
标题翻译：用于制造磁性写头的方法，该磁头具有与磁带的磁屏蔽磁耦合的磁带
公开(公告)号：US20110146062A1
公开(公告)日：2011-06-23
申请号：US12641242
申请日：2009-12-17
申请人： Donald G. Allen , Yingjian Chen , Andrew Chiu , Liubo Hong , Wen-Chien D. Hsiao , Edward H.P. Lee , Fenglin Liu , Katalin Pentek , Kyusik Shin , Yi Zheng , Qiping Zhong , Honglin Zhu
发明人： Donald G. Allen , Yingjian Chen , Andrew Chiu , Liubo Hong , Wen-Chien D. Hsiao , Edward H.P. Lee , Fenglin Liu , Katalin Pentek , Kyusik Shin , Yi Zheng , Qiping Zhong , Honglin Zhu
IPC分类号： G11B5/127
CPC分类号： G11B5/11 , G11B5/1278 , G11B5/3116 , G11B5/3146 , G11B5/315 , G11B5/3163 , Y10T29/49039 , Y10T29/49043 , Y10T29/49044 , Y10T29/49046 , Y10T29/49048 , Y10T29/49052
摘要： A method for manufacturing a magnetic write head having a leading magnetic shield and a trailing magnetic shield that are arranged to prevent the lost of magnetic write field to the trailing magnetic shield. The write head includes a non-magnetic step layer that provides additional spacing between the trailing magnetic shield and the write pole at a region removed from the air bearing surface.
摘要翻译：一种用于制造具有前磁屏蔽和后磁屏蔽的磁写头的方法，该方法被布置为防止向后磁屏蔽的磁写磁场的损失。写头包括非磁性阶梯层，其在从空气轴承表面移除的区域处在后磁屏蔽和写极之间提供额外的间隔。

10. 发明申请

US20110135959A1 PMR WRITER AND METHOD OF FABRICATION 有权
标题翻译： PMR WRITER和制造方法
公开(公告)号：US20110135959A1
公开(公告)日：2011-06-09
申请号：US12634547
申请日：2009-12-09
申请人： LIUBO HONG
发明人： LIUBO HONG
IPC分类号： G11B5/33 , G03F7/20
CPC分类号： G11B5/3116 , G11B5/1278 , G11B5/3146 , G11B5/315 , G11B5/3163
摘要： Embodiments of the invention provide a magnetic recording head including a write pole having increasing magnetic moment from a leading edge of the write pole to a trailing edge of the write pole, and methods for manufacturing the same. The write pole may be formed with a plurality of different magnetic material layers having different magnetic moments. A first magnetic layer may be formed with a first magnetic material adjacent a leading edge of the write pole. A second magnetic layer having a greater moment may be formed on the first magnetic layer, thereby increasing the magnetic moment from the leading edge of the write pole to the trailing edge of the write pole.
摘要翻译：本发明的实施例提供了一种磁记录头，其包括具有从写入极的前沿到写入极的后沿的磁矩增加的写入极及其制造方法。写极可以形成有具有不同磁矩的多个不同的磁性材料层。第一磁性层可以形成有与写入极的前沿相邻的第一磁性材料。可以在第一磁性层上形成具有更大力矩的第二磁性层，从而增加从写入极的前沿到写入极的后沿的磁矩。

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