专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US08351307B1 Trailing edge optimized near field transducer having non-rectangular pin cross section 有权
标题翻译：后沿优化近场传感器具有非矩形销截面
公开(公告)号：US08351307B1
公开(公告)日：2013-01-08
申请号：US12794692
申请日：2010-06-04
申请人： Christopher B. Wolf , Eric J. Champion , Kroum S. Stoev
发明人： Christopher B. Wolf , Eric J. Champion , Kroum S. Stoev
IPC分类号： G11B11/00
CPC分类号： G11B5/314 , G11B5/6088 , G11B2005/0021
摘要： A near field transducer (NFT) for use in an energy assisted magnetic recording (EAMR) head and configured to direct energy to a recording media is disclosed. The NFT comprises a disk section; and a pin section extending towards an air bearing surface (ABS) from the disk section. The pin section has a proximal end adjoining the disk section and a distal end opposite to the proximal end and facing the ABS, wherein at least the distal end of the pin section has a non- rectangular cross section in a plane parallel to the ABS.
摘要翻译：公开了一种用于能量辅助磁记录（EAMR）头并被配置为将能量引导到记录介质的近场传感器（NFT）。 NFT包括磁盘部分; 以及从盘部向空气轴承表面（ABS）延伸的销部分。销部分具有邻近盘部分的近端和与近端相对的并且面向ABS的远端，其中销部分的至少远端在平行于ABS的平面中具有非矩形截面。

2. 发明授权

US08320219B1 Trailing edge optimized near field transducer 有权
标题翻译：后沿优化近场传感器
公开(公告)号：US08320219B1
公开(公告)日：2012-11-27
申请号：US12815934
申请日：2010-06-15
申请人： Christopher B. Wolf , Eric J. Champion , Kroum S. Stoev
发明人： Christopher B. Wolf , Eric J. Champion , Kroum S. Stoev
IPC分类号： G11B11/00
CPC分类号： G11B5/6088 , G11B5/314 , G11B2005/0021
摘要： An energy assisted magnetic recording (EAMR) head for writing to a recording media is disclosed. The EAMR head includes a write pole for providing a magnetic field for writing to the recording media; and a near field transducer disposed adjacent to the write pole and comprising a disk section and a pin section extending towards an air bearing surface (ABS) from the disk section. At least a portion of the pin section is electrically isolated from the write pole by an insulator material.
摘要翻译：公开了一种用于写入记录介质的能量辅助磁记录（EAMR）头。 EAMR头包括写磁极，用于提供用于写入记录介质的磁场; 以及靠近所述写入极设置的近场换能器，并且包括盘部分和从所述盘部向空气轴承表面（ABS）延伸的销部分。引脚部分的至少一部分通过绝缘体材料与写入极电隔离。

3. 发明授权

US08462592B1 Energy-assisted magnetic recording head having waveguide capable of providing small beam spots 有权
标题翻译：具有能够提供小束斑的波导的能量辅助磁记录头
公开(公告)号：US08462592B1
公开(公告)日：2013-06-11
申请号：US12948425
申请日：2010-11-17
申请人： Christopher B. Wolf , Eric J. Champion , Kroum S. Stoev , Matthew R. Gibbons
发明人： Christopher B. Wolf , Eric J. Champion , Kroum S. Stoev , Matthew R. Gibbons
IPC分类号： G11B11/00
CPC分类号： G11B5/314 , G11B5/6088 , G11B2005/0021
摘要： A method and system for providing an EAMR transducer is described. The EAMR transducer has an ABS and is coupled with a laser. The EAMR transducer includes a write pole, coil(s), and an energy delivery device. The write pole magnetically writes to the media. The coil(s) energize the write pole. The energy delivery device is optically coupled with the laser and includes a top distal from the ABS, a bottom proximate to the ABS, a first side, and a second side opposite to the first side. The first side has a first apex angle from a normal to the ABS and is reflective. The second side has a second apex angle from the normal and is reflective. The first and second apex angles are each at least three and not more than twenty-five degrees. The first and second sides converge such that the top is wider than the bottom.
摘要翻译：描述了一种用于提供EAMR换能器的方法和系统。 EAMR传感器具有ABS并与激光器耦合。 EAMR传感器包括写极，线圈和能量输送装置。写磁极写入介质。线圈使写入极点通电。能量输送装置与激光器光学耦合，并且包括远离ABS的顶部，靠近ABS的底部，第一侧和与第一侧相对的第二侧。第一侧具有从法线到ABS的第一顶角，并且是反射性的。第二面具有与法线的第二顶角并且是反射的。第一和第二顶角各自为至少三个而不多于二十五度。第一和第二侧会聚，使得顶部比底部更宽。

4. 发明授权

US09563397B1 Disk drive using non-volatile cache when garbage collecting log structured writes 有权
标题翻译：磁盘驱动器使用非易失性缓存时垃圾收集日志结构化写入
公开(公告)号：US09563397B1
公开(公告)日：2017-02-07
申请号：US12774643
申请日：2010-05-05
申请人： Kroum S. Stoev , Davide Guarisco , Eric J. Champion , William C. Cain
发明人： Kroum S. Stoev , Davide Guarisco , Eric J. Champion , William C. Cain
IPC分类号： G06F12/00 , G06F21/00 , G06F13/00 , G06F5/06 , G06F5/10
CPC分类号： G06F5/065 , G06F5/10 , G06F12/0246 , G06F12/0866 , G06F2212/1016 , G06F2212/1041 , G06F2212/222 , G06F2212/702 , G06F2212/7201 , G06F2212/7205
摘要： A disk drive is disclosed comprising a head actuated over a disk comprising a plurality of tracks, each track comprising a plurality of data sectors. A circular buffer is defined comprising a plurality of the tracks. During a garbage collection operation, write data is read from previously written valid data sectors corresponding to a tail of the circular buffer and stored in a non-volatile cache. During a flush operation, the write data is flushed from the non-volatile cache to the disk.
摘要翻译：公开了一种磁盘驱动器，其包括在包括多个磁道的磁盘上启动的磁头，每个磁道包括多个数据扇区。定义包括多个轨道的循环缓冲器。在垃圾收集操作期间，从与循环缓冲器的尾部相对应的先前写入的有效数据扇区中读取写入数据并存储在非易失性高速缓存中。在刷新操作期间，将写入数据从非易失性缓存刷新到磁盘。

5. 发明授权

US08537494B1 PMR head with an angled stitch layer 有权
标题翻译： PMR头与一个角度的缝合层
公开(公告)号：US08537494B1
公开(公告)日：2013-09-17
申请号：US11935508
申请日：2007-11-06
申请人： Tao Pan , Yugang Wang , Kroum S. Stoev
发明人： Tao Pan , Yugang Wang , Kroum S. Stoev
IPC分类号： G11B5/127
CPC分类号： G11B5/1278 , G11B5/3116 , G11B5/313 , G11B5/3146 , G11B5/315 , G11B5/3163
摘要： A method and system for providing a magnetic transducer having an air-bearing surface (ABS) are described. The magnetic transducer includes a perpendicular magnetic recording (PMR) pole, an additional pole, a stitch, a shield, a write gap between the PMR pole and a portion of the shield, and at least one coil that energizes at least the additional pole. The PMR pole has a first front portion proximate to the ABS, while the additional pole is recessed from the ABS. The stitch resides between the PMR pole and the additional pole and has a stitch front portion between the front portion of the PMR pole and the additional pole. At least a portion of the write gap resides on the front portion of the PMR pole. At least a portion of the additional pole resides between the PMR pole and the shield.
摘要翻译：描述了一种用于提供具有空气轴承表面（ABS）的磁换能器的方法和系统。磁换能器包括垂直磁记录（PMR）极，附加极，线迹，屏蔽，PMR极与屏蔽的一部分之间的写间隙，以及至少一个激励至少附加极的线圈。 PMR杆具有靠近ABS的第一前部，而附加杆从ABS凹入。该线圈位于PMR极和附加极之间，并且在PMR极的前部和附加极之间具有针迹前部。写入间隙的至少一部分位于PMR极的前部。附加极点的至少一部分位于PMR极与屏蔽之间。

6. 发明授权

US07688546B1 Perpendicular magnetic recording head having nonmagnetic insertion layers 有权
标题翻译：具有非磁性插入层的垂直磁记录头
公开(公告)号：US07688546B1
公开(公告)日：2010-03-30
申请号：US11643493
申请日：2006-12-21
申请人： Zhigang Bai , Peng Luo , Kroum S. Stoev , Francis H. Liu , Yugang Wang , Adam F. Torabi
发明人： Zhigang Bai , Peng Luo , Kroum S. Stoev , Francis H. Liu , Yugang Wang , Adam F. Torabi
IPC分类号： G11B5/17
CPC分类号： G11B5/3116 , G11B5/1278
摘要： The method and system provide a perpendicular magnetic recording (PMR) head having an air bearing surface (ABS). The PMR head includes first and second poles each having front and back gap regions, a first nonmagnetic insertion layer between the back gap regions, a magnetic pole layer with a front terminating at the ABS, a write gap, shield(s), a second nonmagnetic insertion layer between the second pole back gap region and the shield(s), and coil(s) between the shield(s) and the first pole. The magnetic pole layer terminates between the ABS and the second pole back gap region and has pole angle(s) of at least thirty and not more than fifty degrees. At least part of the magnetic pole layer resides on the second pole. Part of the shield(s) are adjacent to the write gap. Another part of the shield(s) is coupled with the second pole back gap region.
摘要翻译：该方法和系统提供具有空气轴承表面（ABS）的垂直磁记录（PMR）头。 PMR头包括第一和第二极，每个具有前后间隙区域，在后间隙区域之间的第一非磁性插入层，在ABS处终止于前面的磁极层，写入间隙，屏蔽，第二极第二极背间隙区域和屏蔽之间的非磁性插入层以及屏蔽和第一极之间的线圈。磁极层终止在ABS和第二极背间隙区域之间，并且具有至少三十度且不超过五十度的极角。磁极层的至少一部分位于第二极上。屏蔽的一部分与写入间隙相邻。屏蔽的另一部分与第二极背隙区域耦合。

7. 发明授权

US07729086B1 Perpendicular magnetic recording head with dynamic flying height heating element disposed below turns of a write coil 有权
标题翻译：具有动态飞行高度加热元件的垂直磁记录头位于写入线圈的下方
公开(公告)号：US07729086B1
公开(公告)日：2010-06-01
申请号：US12197612
申请日：2008-08-25
申请人： Suping Song , Kroum S. Stoev
发明人： Suping Song , Kroum S. Stoev
IPC分类号： G11B5/147 , G11B5/56
CPC分类号： G11B5/3133 , G11B5/1278 , G11B5/3967 , G11B5/6064 , G11B5/607
摘要： A magnetic head for perpendicular magnetic recording includes a slider having an air bearing surface (ABS) and a trailing surface and a transducer fabricated on the trailing surface. The transducer includes a magnetoresistive (MR) read element disposed within a gap material bounded by shield material, an adjunct pole, and a main pole formed in an adjacent layered relationship to the adjunct pole. The adjunct pole has a front edge that is recessed from the ABS and a rear edge. The main pole has a write tip that extends approximately to the ABS. The transducer further includes a write coil having a first layer of turns below the adjunct pole and above the shield material. The magnetic head also includes a heating element with a portion of the heating element below the write coil and behind the rear edge of the adjunct pole.
摘要翻译：用于垂直磁记录的磁头包括具有空气轴承表面（ABS）和后表面的滑块以及在后表面上制造的换能器。换能器包括设置在由屏蔽材料界定的间隙材料内的磁阻（MR）读取元件，辅助极和与附加极相邻的层叠关系形成的主极。辅助杆具有从ABS凹下的前边缘和后边缘。主杆具有大致延伸到ABS的写入尖端。换能器还包括写入线圈，该线圈具有在辅助极下方的第一层匝并且在屏蔽材料之上。磁头还包括加热元件，其中加热元件的一部分在写入线圈下方并在辅助极的后边缘之后。

8. 发明授权

US07522379B1 Write element with recessed pole and heat sink layer for ultra-high density writing 有权
标题翻译：写入元件具有凹陷极和散热层，用于超高密度写入
公开(公告)号：US07522379B1
公开(公告)日：2009-04-21
申请号：US10909226
申请日：2004-07-30
申请人： Mohamad T. Krounbi , Yining Hu , Ming Zhao , Kenneth Kung , Mark D. Thomas , Kroum S. Stoev , Francis H. Liu , Marcos M. Lederman
发明人： Mohamad T. Krounbi , Yining Hu , Ming Zhao , Kenneth Kung , Mark D. Thomas , Kroum S. Stoev , Francis H. Liu , Marcos M. Lederman
IPC分类号： G11B5/147
CPC分类号： G11B5/3133
摘要： A head including a write element for writing data to a magnetic media, and methods for its production are provided. A write element of the invention includes one or more of a recessed first pole, a heat sink layer, and a shortened yoke length. A method of the invention provides forming an anti-reflective layer before forming a mask layer. During photolithography the anti-reflective layer suppresses undesirable reflections off of features, such as vertical sidewalls, that otherwise limit how closely to such features portions of the mask layer can be formed.
摘要翻译：提供一种包括用于向磁性介质写入数据的写入元件的头，以及用于其生产的方法。本发明的写入元件包括凹入的第一极，散热层和缩短的磁轭长度中的一个或多个。本发明的方法提供了在形成掩模层之前形成抗反射层。在光刻期间，抗反射层抑制了诸如垂直侧壁的特征（例如垂直侧壁）的不期望的反射，否则可以限制与这些特征的接近程度，可以形成掩模层的部分。

9. 发明授权

US07337530B1 Method for manufacturing a shielded pole magnetic head for perpendicular recording 有权
标题翻译：用于制造用于垂直记录的屏蔽极磁头的方法
公开(公告)号：US07337530B1
公开(公告)日：2008-03-04
申请号：US11699777
申请日：2007-01-30
申请人： Kroum S. Stoev , Francis H. Liu , Yugang Wang
发明人： Kroum S. Stoev , Francis H. Liu , Yugang Wang
IPC分类号： G11B5/147
CPC分类号： G11B5/313 , G11B5/1278 , G11B5/3116 , G11B2005/0029 , Y10T29/49032 , Y10T29/49041 , Y10T29/49046 , Y10T29/4905
摘要： A method of making a perpendicular magnetic recording head for use in a data storage device includes forming a first pole layer, a second pole layer, a third pole layer, and a shield layer of a write section. The first pole layer, second pole layer, third pole layer, and shield layer are formed without using a chemical mechanical polishing process. The method next includes concurrently trimming the shield layer and a write pole that is defined by the third pole layer to a predetermined track width. In the trimming step, the shield layer is used as a mask for the write pole.
摘要翻译：制造用于数据存储装置的垂直磁记录头的方法包括形成写入部分的第一极层，第二极层，第三极层和屏蔽层。在不使用化学机械抛光工艺的情况下形成第一极层，第二极层，第三极层和屏蔽层。该方法接下来包括同时修整屏蔽层和由第三极层限定到预定磁道宽度的写入极。在修整步骤中，屏蔽层用作写入极的掩模。

10. 发明授权

US07869160B1 Perpendicular recording head with shaped pole surfaces for higher linear data densities 有权
标题翻译：垂直记录头，具有成形极面，可实现更高的线性数据密度
公开(公告)号：US07869160B1
公开(公告)日：2011-01-11
申请号：US11116658
申请日：2005-04-27
申请人： Tao Pan , Kroum S. Stoev , Yugang Wang , Jack M. Chue
发明人： Tao Pan , Kroum S. Stoev , Yugang Wang , Jack M. Chue
IPC分类号： G11B5/23 , G11B5/187 , G11B5/31 , G11B5/39
CPC分类号： G11B5/3116 , G11B5/11 , G11B5/1278 , G11B5/1871 , G11B5/23 , G11B5/3146 , G11B5/3163
摘要： A perpendicular recording head is provided having a bottom pole, a writer pole disposed above the bottom pole, and a top shield disposed above the writer pole. The bottom pole and the top shield are both magnetically coupled to the writer pole. The writer pole includes a concave facing surface that faces the top shield. The top shield can include a convex surface that faces the writer pole. The top shield can also include a pedestal that protrudes towards the writer pole.
摘要翻译：设置有垂直记录头，其具有底极，设置在底极上方的写入极和设置在写入极上方的顶部屏蔽。底极和顶部屏蔽都与磁极耦合。写入器极包括面向顶部屏蔽的面向凹面的表面。顶部屏蔽件可以包括面向写入极的凸面。顶部屏蔽还可以包括朝着写入杆突出的基座。

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