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

US07770285B2 Method of forming a magnetic read/write head 有权
标题翻译：形成磁读写头的方法
公开(公告)号：US07770285B2
公开(公告)日：2010-08-10
申请号：US12058584
申请日：2008-03-28
申请人： Christian R. Bonhote , Malika D. Carter , David A. Dudek , Wen-Chien D. Hsiao , John W. Lam , Vladimir Nikitin
发明人： Christian R. Bonhote , Malika D. Carter , David A. Dudek , Wen-Chien D. Hsiao , John W. Lam , Vladimir Nikitin
IPC分类号： G11B5/127 , H04R31/00
CPC分类号： G11B5/40 , G11B5/3106 , G11B5/3133 , G11B5/3136 , G11B5/3163 , Y10T29/49032 , Y10T29/49041 , Y10T29/49043 , Y10T29/49044 , Y10T29/49046 , Y10T29/49048 , Y10T29/49052
摘要： A magnetic read/write head is produced with an insert layer between the substrate and the magnetic transducer. The insert layer has a lower coefficient of thermal expansion than the substrate, which reduces the temperature pole tip recession (T-PTR) of the head because the insert layer is an intervening layer between the substrate and magnetic transducer. The insert layer is produced by plating, e.g., an Invar layer over the substrate prior to fabricating the magnetic transducer. The Invar layer is annealed and the structure planarized prior to depositing a non-magnetic gap layer followed by the fabrication of the magnetic transducer.
摘要翻译：磁性读/写头在衬底和磁换能器之间产生插入层。插入层具有比衬底更低的热膨胀系数，这降低了头部的温度极尖衰退（T-PTR），因为插入层是衬底和磁换能器之间的中间层。在制造磁换能器之前，通过在衬底上电镀例如Invar层来制造插入层。在沉积非磁隙层之前对Invar层进行退火并将结构平坦化，随后制造磁换能器。

2. 发明申请

US20080172862A1 Head Design With Low Coefficient of Thermal Expansion Insert Layer 有权
标题翻译：头部设计具有低系数的热膨胀插入层
公开(公告)号：US20080172862A1
公开(公告)日：2008-07-24
申请号：US12058584
申请日：2008-03-28
申请人： Christian R. Bonhote , Malika D. Carter , David A. Dudek , Wen-Chien D. Hsiao , John W. Lam , Vladimir Nikitin
发明人： Christian R. Bonhote , Malika D. Carter , David A. Dudek , Wen-Chien D. Hsiao , John W. Lam , Vladimir Nikitin
IPC分类号： G11B5/127 , H04R31/00
CPC分类号： G11B5/40 , G11B5/3106 , G11B5/3133 , G11B5/3136 , G11B5/3163 , Y10T29/49032 , Y10T29/49041 , Y10T29/49043 , Y10T29/49044 , Y10T29/49046 , Y10T29/49048 , Y10T29/49052
摘要： A magnetic read/write head is produced with an insert layer between the substrate and the magnetic transducer. The insert layer has a lower coefficient of thermal expansion than the substrate, which reduces the temperature pole tip recession (T-PTR) of the head because the insert layer is an intervening layer between the substrate and magnetic transducer. The insert layer is produced by plating, e.g., an Invar layer over the substrate prior to fabricating the magnetic transducer. The Invar layer is annealed and the structure planarized prior to depositing a non-magnetic gap layer followed by the fabrication of the magnetic transducer.
摘要翻译：磁性读/写头在衬底和磁换能器之间产生插入层。插入层具有比衬底更低的热膨胀系数，这降低了头部的温度极尖衰退（T-PTR），因为插入层是衬底和磁换能器之间的中间层。在制造磁换能器之前，通过在衬底上电镀例如Invar层来制造插入层。在沉积非磁隙层之前对Invar层进行退火并将结构平坦化，随后制造磁换能器。

3. 发明授权

US08634161B2 Systems having writer with deeper wrap around shield and methods for making the same 有权
标题翻译：具有较深的环绕屏蔽的作者的系统和使其相同的方法
公开(公告)号：US08634161B2
公开(公告)日：2014-01-21
申请号：US12975157
申请日：2010-12-21
申请人： Wen-Chien D. Hsiao , Aron Pentek , Thomas J. A. Roucoux
发明人： Wen-Chien D. Hsiao , Aron Pentek , Thomas J. A. Roucoux
IPC分类号： G11B5/23
CPC分类号： G11B5/1278 , G11B5/3116 , G11B5/3146 , G11B5/315 , G11B5/3163
摘要： A method according to one embodiment includes etching an underlayer positioned under a main pole for reducing a thickness thereof and creating an undercut under the main pole; adding a gap material along sides of the main pole and in the undercut; and forming a shield along at least a portion of the gap material. A magnetic head according to one embodiment includes a main pole; an underlayer positioned under the main pole and spaced therefrom, thereby defining an undercut therebetween; a first layer of gap material extending along sides of the main pole and in the undercut; a second layer of gap material extending continuously along the underlayer under the main pole; and a shield encircling the main pole, wherein the shield extends between the first and second layers of gap material in the undercut. Additional systems and methods are also presented.
摘要翻译：根据一个实施例的方法包括蚀刻位于主极下方的底层以减小其厚度并在主极下方产生底切; 在主杆的侧面和底切处添加间隙材料; 以及沿所述间隙材料的至少一部分形成屏蔽。根据一个实施例的磁头包括主极; 位于主极下方并与其间隔开的底层，从而在其间限定底切; 第一层间隙材料沿主极和底切部分的侧面延伸; 沿着主极下方的底层连续延伸的第二层间隙材料; 以及围绕所述主极的屏蔽件，其中所述屏蔽件在所述底切部中在所述第一和第二间隙材料层之间延伸。还介绍了其他系统和方法。

4. 发明授权

US08547660B2 Magnetic write head manufactured by an enhanced damascene process producing a tapered write pole with a non-magnetic spacer and non-magnetic bump 有权
标题翻译：通过增强的镶嵌工艺制造的磁性写头，其产生具有非磁性间隔物和非磁性凸块的锥形写柱
公开(公告)号：US08547660B2
公开(公告)日：2013-10-01
申请号：US12641251
申请日：2009-12-17
申请人： Donald G. Allen , Amanda Baer , Yingjian Chen , Andrew Chiu , Liubo Hong , Wen-Chien D. Hsiao , Edward H. P. Lee , Fenglin Liu , Aron Pentek , Katalin Pentek , Kyusik Shin , Yi Zheng , Qiping Zhong , Honglin Zhu
发明人： Donald G. Allen , Amanda Baer , Yingjian Chen , Andrew Chiu , Liubo Hong , Wen-Chien D. Hsiao , Edward H. P. Lee , Fenglin Liu , Aron Pentek , Katalin Pentek , Kyusik Shin , Yi Zheng , Qiping Zhong , Honglin Zhu
IPC分类号： G11B5/127
CPC分类号： G11B5/3163 , G11B5/112 , G11B5/1278 , G11B5/3116 , G11B5/314 , G11B5/3143 , G11B5/3146 , G11B5/315 , Y10T428/11 , Y10T428/1171
摘要： A magnetic write head having a tapered trailing edge and having a magnetic layer formed over a trailing edge of the write pole at a location recessed from the ABS, the magnetic layer being separated from the trailing edge of the write pole by a thin non-magnetic layer. The thin non-magnetic layer is preferably sufficiently thin that the magnetic layer can function as a portion of the write pole in a region removed from the ABS. A trailing magnetic shield is formed over the write pole and is separated from the write pole by a non-magnetic trailing gap layer. A non-magnetic spacer layer can be formed over the magnetic layer to provide additional separation between the magnetic layer and the trailing magnetic shield.
摘要翻译：一种具有锥形后缘并具有磁性层的磁性写头，该磁性层形成在从ABS的凹陷处的写入极的后缘上，该磁性层通过薄的非磁性的方式与写入极的后缘分离层。薄的非磁性层优选地足够薄，使得磁性层可以在从ABS去除的区域中用作写入极的一部分。尾磁屏蔽形成在写极上，并且通过非磁性拖尾间隙层与写极分离。可以在磁性层之上形成非磁性间隔层，以在磁性层和尾部磁屏蔽之间提供额外的间隔。

5. 发明申请

US20120154954A1 PERPENDICULAR MAGNETIC WRITE HEAD HAVING A LAMINATED TRAILING RETURN POLE 有权
标题翻译：具有层叠式追踪返回点的全磁性磁头
公开(公告)号：US20120154954A1
公开(公告)日：2012-06-21
申请号：US12975121
申请日：2010-12-21
申请人： Wen-Chien D. Hsiao , Yimin Hsu , Jennifer Leung
发明人： Wen-Chien D. Hsiao , Yimin Hsu , Jennifer Leung
IPC分类号： G11B5/127 , G11B21/16 , G11B5/187 , G11B5/147
CPC分类号： G11B5/1278 , G11B5/315 , Y10T428/1186
摘要： A perpendicular magnetic write head having a laminated trailing return pole structure that reduces magnetic eddy currents in the return pole for improved write head efficiency. The trailing magnetic return pole includes multiple magnetic layers. Each magnetic layer is separated from an adjacent magnetic layer of the return pole by a non-magnetic layer. The non-magnetic layer terminates at a region that is removed from the air bearing surface in order to allow contact between the magnetic layers at the ABS, thereby preventing stray magnetic fields from emitting from the magnetic layers of the write pole.
摘要翻译：具有层叠后退磁极结构的垂直磁性写头，其减小返回极中的磁涡流，以提高写头效率。尾磁回极包括多个磁性层。每个磁性层通过非磁性层与返回极的相邻磁性层分离。非磁性层终止于从空气轴承表面移除的区域，以便允许ABS处的磁性层之间的接触，从而防止杂散磁场从写入磁极的磁性层发射。

6. 发明申请

US20110120878A1 METHOD FOR MANUFACTURING A PERPENDICULAR MAGNETIC WRITE HEAD HAVING A TAPERED WRITE POLE AND NON-MAGNETIC BUMP STRUCTURE 有权
标题翻译：用于制造具有锥形写入点和非磁性结构的贯通磁头写头的方法
公开(公告)号：US20110120878A1
公开(公告)日：2011-05-26
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： C23C14/34 , C25D5/34
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阶梯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。

7. 发明申请

US20130022840A1 METHOD FOR MANUFACTURING A MAGNETIC WRITE HEAD WITH A FLOATING LEADING SHIELD 审中-公开
标题翻译：用浮动导线制造磁头写头的方法
公开(公告)号：US20130022840A1
公开(公告)日：2013-01-24
申请号：US13187355
申请日：2011-07-20
申请人： Wen-Chien D. Hsiao , Ning Shi , Yi Zheng
发明人： Wen-Chien D. Hsiao , Ning Shi , Yi Zheng
IPC分类号： G11B5/33 , C25D5/02 , B05D5/12
CPC分类号： C25D5/022 , G11B5/3116 , G11B5/315 , G11B5/3163 , Y10T428/1186
摘要： A method for manufacturing a magnetic write head having a write pole with a tapered leading edge formed on a substrate having a tapered surface and a wrap-around, trailing magnetic shield. The method uses a multi-layer anti-reflective coating prior to formation of the shield so that reflection from the tapered surface of the substrate does not affect the lithography of the mask used to form the trailing shield. The multi-layer antireflective coating is constructed of materials that can be left in the finished head, thereby eliminating problems associated with removal of the anti-reflective coating.
摘要翻译：一种用于制造具有形成在具有锥形表面的基底上的锥形前缘的写入极和缠绕的磁性磁屏蔽的磁性写入头的制造方法。该方法在形成屏蔽之前使用多层抗反射涂层，使得来自衬底的锥形表面的反射不影响用于形成后屏蔽的掩模的光刻。多层抗反射涂层由可以留在成品头中的材料构成，从而消除与去除抗反射涂层有关的问题。

8. 发明申请

US20120300334A1 MAGNETIC HEAD WITH SELF COMPENSATING DUAL THERMAL FLY HEIGHT CONTROL 有权
标题翻译：具有自我补偿双重热飞扬高度控制的磁头
公开(公告)号：US20120300334A1
公开(公告)日：2012-11-29
申请号：US13117814
申请日：2011-05-27
申请人： Wen-Chien D. Hsiao , Xinjiang Shen
发明人： Wen-Chien D. Hsiao , Xinjiang Shen
IPC分类号： G11B5/02
CPC分类号： G11B5/3133 , G11B5/607
摘要： A magnetic head for data recording having a pair of heating elements that self regulate in response to temperature to distribute heat for thermal actuation. The head includes a first heating element located adjacent to the read sensor and away from the writer, and a second heating element located adjacent to the writer. The first and second heating elements have different coefficients of thermal resistance that cause the heating of the second heating element to increase relative to that of the first heating element when the overall temperature increases or when power provided by a power source increases. There, thereby prevents the read sensor from extending too much and possibly contacting the disk.
摘要翻译：一种用于数据记录的磁头，其具有一对加热元件，所述加热元件响应于温度自我调节以分配用于热致动的热量。头部包括位于与读取传感器相邻并远离写入器的第一加热元件和位于与写入器相邻的第二加热元件。第一和第二加热元件具有不同的热阻系数，当总体温度升高或由电源提供的功率增加时，导致第二加热元件的加热相对于第一加热元件的加热增加。在那里，从而防止读取传感器伸出太多并且可能接触磁盘。

9. 发明申请

US20120092789A1 THERMAL FLY HEIGHT CONTROL MAGNETIC RECORDING HEAD HAVING A NOVEL HEATING ELEMENT GEOMETRY 有权
标题翻译：具有新型加热元件几何的热飞扬高度控制磁记录头
公开(公告)号：US20120092789A1
公开(公告)日：2012-04-19
申请号：US12904943
申请日：2010-10-14
申请人： Wen-Chien D. Hsiao , Xinjiang Shen , Jing Zhang
发明人： Wen-Chien D. Hsiao , Xinjiang Shen , Jing Zhang
IPC分类号： G11B5/02
CPC分类号： G11B5/3133 , G11B5/607
摘要： A heating element for use in a thermal fly height control magnetic recording head of a magnetic data recording system. The heating element has a centrally disposed portion with a straight front edge that is recessed by a substantially constant distance, and has first and second side portions that taper away from the air bearing surface. The side portions preferably taper away from the air bearing surface by an angle of 20 to 45 degrees. The center portion of the front edge is spaced from the air bearing surface by a distance D and has a width W, such that W is 1.5 to 2.5 (or about 2) times D. D is typically 2-6 um to have good heater efficiency while being large enough to not over heat the heater. The heating element has an overall width WW and a overall depth HH from the air bearing surface such that WW is 1.5-2.5 (or about 2) times HH.
摘要翻译：一种用于磁数据记录系统的散热高度控制磁记录头的加热元件。加热元件具有居中设置的部分，其具有以基本恒定的距离凹陷的直的前边缘，并且具有从空气轴承表面逐渐变细的第一和第二侧部。侧部分优选地从空气支承表面以20度至45度的角度倾斜。前边缘的中心部分与空气轴承表面间隔距离D，并具有宽度W，使得W为1.5至2.5（或约2）倍.D通常为2-6微米以具有良好的加热器效率同时足够大，不能过热加热器。加热元件具有从空气轴承表面的总宽度WW和总深度HH，使得WW为1.5-2.5（或约2）倍HH。

10. 发明申请

US20100157475A1 STEPPED MAIN POLE FOR PERPENDICULAR WRITE HEADS IN HARD DISK DRIVES AND METHOD OF MAKING SAME 有权
标题翻译：硬盘驱动器中的普通写入头的步进主要步骤及其制作方法
公开(公告)号：US20100157475A1
公开(公告)日：2010-06-24
申请号：US12342647
申请日：2008-12-23
申请人： Wen-Chien D. Hsiao , Ming Jiang , Sue S. Zhang , Yi Zheng
发明人： Wen-Chien D. Hsiao , Ming Jiang , Sue S. Zhang , Yi Zheng
IPC分类号： G11B5/127 , G03F7/20 , B44C1/22 , B32B37/14
CPC分类号： G11B5/3116 , G11B5/1278 , G11B5/3163 , Y10T156/10 , Y10T428/1171 , Y10T428/1186
摘要： A stepped main pole for a perpendicular write head and methods of making the stepped main pole. The stepped main pole has a main pole tip and a base portion. The main pole tip has a surface that forms part of the ABS and a first thickness. The base portion extends from the main pole tip and has a thickness that varies from the first thickness to a second thickness to form a slanted surface with an apex angle adjacent the main pole tip. By placing the base portion away from the ABS and providing a thickness that increases in a direction away from the ABS, the stepped pole can provide the necessary magnetic flux for writing, while avoiding undesired leakage and fringing. To form embodiments of the stepped main pole of the invention, a fluorine-based reactive ion etch (RIE) may be used. By using an RIE to define the stepped main pole, the apex angle can be better controlled and tight edge control can be achieved.
摘要翻译：用于垂直写头的梯级主极和制作阶梯式主极的方法。阶梯式主极具有主极尖和基部。主极尖具有形成ABS的一部分的表面和第一厚度。基部从主极尖延伸，并且具有从第一厚度变化到第二厚度的厚度，以形成邻近主极尖的顶角的倾斜表面。通过将基座部分远离ABS并且提供沿离开ABS的方向增加的厚度，台阶极可以提供必要的写入磁通量，同时避免不期望的泄漏和边缘。为了形成本发明的阶梯式主极的实施例，可以使用氟基反应离子蚀刻（RIE）。通过使用RIE来定义阶梯式主极，可以更好地控制顶角，并且可以实现紧密的边缘控制。

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