专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

11. 发明授权

US08262919B1 Method and system for providing a perpendicular magnetic recording pole using multiple chemical mechanical planarizations 有权
标题翻译：使用多个化学机械平面化提供垂直磁记录极的方法和系统
公开(公告)号：US08262919B1
公开(公告)日：2012-09-11
申请号：US12824036
申请日：2010-06-25
申请人： Guanghong Luo , Changqing Shi , Danning Yang , Jinwen Wang , Ming Jiang
发明人： Guanghong Luo , Changqing Shi , Danning Yang , Jinwen Wang , Ming Jiang
IPC分类号： B44C1/22
CPC分类号： G11B5/1278 , G11B5/3116 , G11B5/315 , G11B5/3163
摘要： A method and system for providing a pole of magnetic transducer having an intermediate layer are described. The method and system include providing a trench in the intermediate layer and depositing a nonmagnetic liner. A portion of the nonmagnetic liner resides in the trench. At least one seed layer is deposited. A portion of the at least one seed layer resides in the trench. The method and system include depositing at least one main pole layer. The at least one main pole layer is magnetic. A portion of the main pole layer(s) reside in the trench. The method and system also include performing a first chemical mechanical planarization (CMP). An excess portion of the seed layer(s) external to the trench are removed through an ion beam etch. The method and system further include performing a second CMP to remove an excess portion of the nonmagnetic liner external to the trench.
摘要翻译：描述了一种用于提供具有中间层的磁换能器的磁极的方法和系统。该方法和系统包括在中间层中提供沟槽并沉积非磁性衬垫。非磁性衬垫的一部分位于沟槽中。沉积至少一个种子层。至少一个种子层的一部分位于沟槽中。该方法和系统包括沉积至少一个主极层。至少一个主极层是磁性的。主极层的一部分驻留在沟槽中。该方法和系统还包括执行第一化学机械平面化（CMP）。通过离子束蚀刻去除沟槽外部的种子层的多余部分。该方法和系统还包括执行第二CMP以去除沟槽外部的非磁性衬垫的多余部分。

12. 发明授权

US07889456B2 Perpendicular magnetic recording write head with flux shaping layers on the write pole and magnetic recording system incorporating the write head 有权
标题翻译：垂直磁记录写磁头与写入磁极和磁记录系统中的磁通成形层结合写入头
公开(公告)号：US07889456B2
公开(公告)日：2011-02-15
申请号：US11939503
申请日：2007-11-13
申请人： Ming Jiang , Changqing Shi
发明人： Ming Jiang , Changqing Shi
IPC分类号： G11B5/147
CPC分类号： G11B5/3116 , G11B5/112 , G11B5/1278 , G11B5/3146 , G11B5/315
摘要： A perpendicular magnetic recording write head having a flux shaping layer located on the write pole which has an end located substantially at the surface of the head carrier that faces the recording medium. The write head includes a main pole, on which the write pole is formed, that has an end recessed from the write pole end, and at least one flux return pole. In one implementation a first flux shaping layer is located between the main pole and the write pole. A second flux shaping layer may be located on the write pole with both shaping layers having an end recessed from the write pole end. The first and second flux shaping layers may also be tapered in the direction of the recording medium and cover the sides of the write pole in the cross-track direction to substantially surrounded the write pole with flux shaping material.
摘要翻译：一种垂直磁记录写头，其具有位于写极上的通量成形层，其具有大致位于头托架的面向记录介质的表面的端部。写头包括形成有写极的主极，其具有从写极端凹入的端部，以及至少一个通量返回极。在一个实施方案中，第一磁通形成层位于主极和写极之间。第二磁通形成层可以位于写极上，两个成形层具有从写极端凹入的端部。第一和第二磁通形成层也可以在记录介质的方向上渐缩，并且在交叉磁道方向上覆盖写极的侧面，以基本上用磁通量成形材料包围写极。

13. 发明申请

US20090154026A1 METHOD FOR MANUFACTURING A PERPENDICULAR MAGNETIC WRITE HEAD WITH A THIN WRAP AROUND MAGNETIC SHIELD 有权
标题翻译：用于制造具有磁带的薄带的普通磁头写入头的方法
公开(公告)号：US20090154026A1
公开(公告)日：2009-06-18
申请号：US11955305
申请日：2007-12-12
申请人： Ming Jiang , Changqing Shi
发明人： Ming Jiang , Changqing Shi
IPC分类号： G11B5/33
CPC分类号： G11B5/3116 , G11B5/1278 , G11B5/315
摘要： A magnetic write head for perpendicular magnetic recording having a thin wrap-around magnetic shield. The small thickness and forming method of the thin wrap-around magnetic shield allow it to be electroplated using a thin photoresist frame mask. The thin photoresist frame mask has better critical dimension and straight wall control than a thicker mask, which allows the wrap-around magnetic shield to be constructed with much more straight and uniform back edge for shield throat height control than is possible when forming a thicker (i.e. taller) shield. The thin wrap-around magnetic shield can be stitched to a trailing return pole to avoid magnetic saturation of the wrap-around shield.
摘要翻译：用于垂直磁记录的磁写头，具有薄的环绕磁屏蔽。薄环绕磁屏蔽的小厚度和形成方法允许其使用薄的光致抗蚀剂框架掩模进行电镀。薄的光致抗蚀剂框架掩模具有比较厚的掩模更好的临界尺寸和直壁控制，这使得环绕的磁屏蔽件构造成具有更加直线和均匀的后边缘，用于在形成更厚的（即更高）的盾牌。薄环绕磁屏蔽可以缝合到尾部返回极，以避免环绕屏蔽的磁饱和。

14. 发明申请

US20090122445A1 PERPENDICULAR MAGNETIC RECORDING WRITE HEAD WITH FLUX SHAPING LAYERS ON THE WRITE POLE AND MAGNETIC RECORDING SYSTEM INCORPORATING THE WRITE HEAD 有权
标题翻译：写磁头和写磁头的磁记录系统的磁带记录头磁头记录头
公开(公告)号：US20090122445A1
公开(公告)日：2009-05-14
申请号：US11939503
申请日：2007-11-13
申请人： Ming Jiang , Changqing Shi
发明人： Ming Jiang , Changqing Shi
IPC分类号： G11B5/10
CPC分类号： G11B5/3116 , G11B5/112 , G11B5/1278 , G11B5/3146 , G11B5/315
摘要： A perpendicular magnetic recording write head has at least one flux shaping layer located on the write pole. The write pole has an end located substantially at the surface of the head carrier that faces the recording medium. The write head includes a main pole, on which the write pole is formed, that has an end recessed from the write pole end, and at least one flux return pole. In one implementation a first flux shaping layer is located between the main pole and the write pole and has an end recessed from the write pole end. A second flux shaping layer, also with its end recessed form the write pole end, may be located on the write pole. The second flux shaping layer may also cover the sides of the write pole in the cross-track direction so that together with the first flux shaping layer, the write pole is substantially surrounded by flux shaping material. The ends of the flux shaping layers may be tapered in the direction of the recording medium to enhance directing and shaping the flux to the write pole end.
摘要翻译：垂直磁记录写头具有位于写柱上的至少一个磁通形成层。写极具有大致位于头托架的面向记录介质的表面的端部。写头包括形成有写极的主极，其具有从写极端凹入的端部和至少一个通量返回极。在一个实施方案中，第一磁通形成层位于主极和写极之间，并且具有从写极端凹入的端部。第二磁通形成层，其端部凹入形成写极端，可以位于写极上。第二磁通形成层也可以覆盖写磁极的交叉磁道方向的侧面，使得与第一磁通形成层一起，写磁极基本上被磁通成形材料包围。焊剂成形层的端部可以在记录介质的方向上渐缩，以增强引导和成形焊剂到写入极端部。

15. 发明申请

US20050264930A1 Method and apparatus for providing a write head with an improved pole tip to improve overwrite and/or adjacent track interference 失效
标题翻译：用于向写头提供改进的极尖以改善重写和/或相邻轨道干扰的方法和装置
公开(公告)号：US20050264930A1
公开(公告)日：2005-12-01
申请号：US10857363
申请日：2004-05-28
申请人： Savas Gider , Wen-Chien Hsiao , Quan-chiu Lam , Terence Lam , Edward Hin Lee , Yansheng Luo , Vladimir Nikitin , Changqing Shi , Xiaoyu Sui
发明人： Savas Gider , Wen-Chien Hsiao , Quan-chiu Lam , Terence Lam , Edward Hin Lee , Yansheng Luo , Vladimir Nikitin , Changqing Shi , Xiaoyu Sui
IPC分类号： G11B5/23 , G11B5/31
CPC分类号： G11B5/3116
摘要： A method and apparatus for providing a write head with an improved pole tip to improve overwrite and/or adjacent track interference. A cross pole tip writer is provided with a shape that is designed to reduce the saturation on the pole tip and aid in the concentration of flux to the down track.
摘要翻译：一种用于向写头提供改进的极尖以改善覆盖和/或相邻轨道干扰的方法和装置。十字极尖端写入器具有被设计成减小极尖上的饱和度的形状，并且有助于向下轨道的通量的集中。

16. 发明授权

US08291743B1 Method and system for calibrating an electronic lapping guide for a beveled pole in a magnetic recording transducer 有权
标题翻译：用于校准磁记录传感器中斜面极的电子研磨导轨的方法和系统
公开(公告)号：US08291743B1
公开(公告)日：2012-10-23
申请号：US12473159
申请日：2009-05-27
申请人： Changqing Shi , Ming Jiang
发明人： Changqing Shi , Ming Jiang
IPC分类号： G01N37/00 , G11B27/36
CPC分类号： G11B5/3166 , G11B5/3169
摘要： A method and system for calibrating an electronic lapping guide (ELG) for transducer(s) having an ABS and a magnetic structure are described. The magnetic structure has a desired thickness, a bevel, and a flare point a distance from the ABS. The method and system include providing at least three ELGs. A first ELG has first and second edges first and second distances from the ABS. A second ELG has third and fourth edges third and second distances from the ABS. A third ELG has fifth and sixth edges fourth and second distances from the ABS. The first, third, and fourth distances correspond to a stripe height and an offset. The first, third, and fourth distance and/or the second distance corresponds to an intersection between the bevel and the desired thickness. The method and system also include measuring resistances of the ELGs, and calibrating the ELG(s) utilizing the offset and resistances.
摘要翻译：描述了用于校准具有ABS和磁性结构的换能器的电子研磨导轨（ELG）的方法和系统。磁性结构具有所需的厚度，斜面和距离ABS的距离的火炬点。该方法和系统包括提供至少三个ELG。第一ELG具有第一和第二边缘和ABS之间的第二距离。第二ELG具有距ABS的第三和第四边缘第三和第二距离。第三ELG具有从ABS的第五和第六边缘第四和第二距离。第一，第三和第四距离对应于条纹高度和偏移。第一，第三和第四距离和/或第二距离对应于斜面和期望厚度之间的交点。该方法和系统还包括测量ELG的电阻，并利用偏移和电阻校准ELG。

17. 发明授权

US08254060B1 Straight top main pole for PMR bevel writer 有权
标题翻译： PMR斜面写入器的直顶主杆
公开(公告)号：US08254060B1
公开(公告)日：2012-08-28
申请号：US12426134
申请日：2009-04-17
申请人： Changqing Shi , Ming Jiang
发明人： Changqing Shi , Ming Jiang
IPC分类号： G11B5/127
CPC分类号： G11B5/3163 , G11B5/3116
摘要： A magnetic recording head includes a write pole comprising a throat region. The throat region includes a lower portion having a substantially trapezoidal cross-section, and an upper portion having a substantially rectangular cross-section. In a beveled region of the write pole, the substantially rectangular cross-section of the upper portion decreases in height towards an air bearing surface of the magnetic recording head.
摘要翻译：磁记录头包括一个包括喉部区域的写柱。喉部区域包括具有基本上梯形横截面的下部和具有基本上矩形横截面的上部。在写入极的斜面区域中，上部的基本上矩形的横截面朝向磁记录头的空气支承表面的高度减小。

18. 发明授权

US08068312B2 Perpendicular magnetic write head with stitched notched trailing shield 有权
标题翻译：垂直磁性写头，带有缝合的缺口后挡板
公开(公告)号：US08068312B2
公开(公告)日：2011-11-29
申请号：US11944157
申请日：2007-11-21
申请人： Ming Jiang , Changqing Shi
发明人： Ming Jiang , Changqing Shi
IPC分类号： G11B5/147
CPC分类号： G11B5/3116 , G11B5/1278 , Y10T29/49048
摘要： A magnetic write head for perpendicular magnetic recording having a stitched notched trailing shield. The trailing shield includes a first pedestal portion having sides that are self aligned with the sides of the write pole and having a back edge that extends a first shield throat height. The shield further includes a second shield portion stitched onto the pedestal portion, the second shield portion having a back edge that extends beyond the back edge of the pedestal portion.
摘要翻译：一种用于垂直磁记录的磁头，具有缝合有缺口的后挡板。后挡板包括第一基座部分，该第一基座部分具有与写入极的两侧自对准的侧面，并且具有延伸第一屏蔽喉部高度的后边缘。屏蔽还包括缝合在基座部分上的第二屏蔽部分，第二屏蔽部分具有延伸超过基座部分的后边缘的后边缘。

19. 发明授权

US07889458B2 Write head with self-cross biased pole for high speed magnetic recording 有权
标题翻译：用自交偏置极头写入磁头用于高速磁记录
公开(公告)号：US07889458B2
公开(公告)日：2011-02-15
申请号：US11598418
申请日：2006-11-13
申请人： Wen-Chien David Hsiao , Terence Tin-Lok Lam , Changqing Shi
发明人： Wen-Chien David Hsiao , Terence Tin-Lok Lam , Changqing Shi
IPC分类号： G11B5/31
CPC分类号： G11B5/1278 , G11B5/187 , G11B2005/0013 , G11B2005/0032
摘要： A magnetic write head having a magnetic cross yoke arranged to provide a cross magnetic field in a pole tip region of the magnetic head. The cross field, which is perpendicular to the magnetization of write pole, reduces the switching time of the write field, thereby increasing the speed with which the write head can record data. The write head can be a longitudinal write head or a perpendicular write head. In the case of a perpendicular write, the write head can include a write pole arranged to provide a magnetic write field that emits a magnetic field substantially perpendicular with an Air Bearing Surface (ABS). A magnetic cross yoke is formed having ends that are disposed at opposite sides of the pole tip region of the write pole.
摘要翻译：一种磁性写头，具有设置成在磁头的磁极尖端区域中提供交叉磁场的磁性交叉磁轭。与写入磁极的磁化方向垂直的交叉场减少写入场的切换时间，从而提高写入头可以记录数据的速度。写头可以是纵向写头或垂直写头。在垂直写入的情况下，写入头可以包括写极，该写极被布置成提供发射与空气轴承表面（ABS）基本垂直的磁场的磁写入场。形成磁性交叉轭，其端部设置在写入极的极尖区域的相对侧。

20. 发明申请

US20090168236A1 Magnetic head for perpendicular recording having stepped wrap around shield with independent control of write pole track width and flare point dimensions 有权
标题翻译：用于垂直记录的磁头，具有围绕屏蔽的台阶缠绕，独立控制写入磁极宽度和扩展点尺寸
公开(公告)号：US20090168236A1
公开(公告)日：2009-07-02
申请号：US12005557
申请日：2007-12-26
申请人： Ming Jiang , Changqing Shi
发明人： Ming Jiang , Changqing Shi
IPC分类号： G11B5/127
CPC分类号： G11B5/3116 , G11B5/1278 , G11B5/23 , G11B5/315 , G11B5/3163
摘要： Methods and structures for the fabrication of a thin film, perpendicular recording write head are disclosed. The fabrication involves the deposition of two different oxide layers which have mutually high etch selectivities. This characteristic allows a write pole structure to be built wherein the track width is independent of the location of the flare point. The process also produces a structure wherein the throat height of the shield is self aligned to the location of the flare point of the write pole.
摘要翻译：公开了用于制造薄膜垂直记录写头的方法和结构。该制造涉及沉积具有相互高蚀刻选择性的两个不同的氧化物层。该特征允许构建写极结构，其中轨道宽度独立于耀斑点的位置。该过程还产生一种结构，其中屏蔽件的喉部高度自动对准写入磁极的扩张点的位置。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式