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1. 发明授权

US06325947B1 Method for forming low profile multi-layer coil merged thin film magnetic head 有权
标题翻译：用于形成薄型多层线圈合并薄膜磁头的方法
公开(公告)号：US06325947B1
公开(公告)日：2001-12-04
申请号：US09431393
申请日：1999-11-01
申请人： Glen Adam Garfunkel , Edward Hinpong Lee , Joseph Francis Smyth , Samuel Wonder Yuan
发明人： Glen Adam Garfunkel , Edward Hinpong Lee , Joseph Francis Smyth , Samuel Wonder Yuan
IPC分类号： B44C122
摘要： A method for forming a merged thin film magnetic head having a first shield layer and a combined second shield and bottom pole piece layer arranged in a sandwich supporting a read sensor therebetween at the pole tip region. The combined second shield and bottom pole piece layer are magnetically coupled with the first shield layer at the pole tip end of the yoke region adjacent the read sensor, and overlaying and magnetically coupled with the first shield layer at the back gap region. A patterned opening is provided in the combined second shield and bottom pole piece layer at the yoke region thereof to expose the first shield layer and form a flat planarization surface thereon. A plurality of stacked thin film coil layers are provided in the patterned opening, and a top pole piece layer overlies the thin film coil at the yoke region, overlies the bottom pole piece at the pole tip region providing a pole tip and gap thereat, and overlies the bottom pole piece at the back gap region. The patterned opening which exposes the first shield layer allows the provision of a multi-layer coil while maintaining a low profile of the head.
摘要翻译：一种用于形成合并的薄膜磁头的方法，所述薄膜磁头具有第一屏蔽层和组合的第二屏蔽和底极片层，所述第二屏蔽层和底极片层以夹持状态支撑在极尖区域处的读取传感器。组合的第二屏蔽和底极片层与邻近读取传感器的磁轭区域的极端部处的第一屏蔽层磁耦合，并且在后隙区域与第一屏蔽层重叠并磁耦合。在组合的第二屏蔽层和底极片层中设置图案化的开口，以在其磁轭区域露出第一屏蔽层并在其上形成平坦的平坦化表面。在图案化开口中设置多个堆叠的薄膜线圈层，并且顶极片层覆盖在磁轭区域处的薄膜线圈，在极尖部分处覆盖提供极尖和间隙的极极片，并且在后隙区域覆盖底极片。暴露第一屏蔽层的图案化开口允许提供多层线圈，同时保持头部的低轮廓。

2. 发明授权

US6034848A Low profile multi-layer coil merged thin film magnetic head 失效
标题翻译：薄型多层线圈合并薄膜磁头
公开(公告)号：US6034848A
公开(公告)日：2000-03-07
申请号：US64932
申请日：1998-04-22
申请人： Glen Adam Garfunkel , Edward Hinpong Lee , Joseph Francis Smyth , Samuel Wonder Yuan
发明人： Glen Adam Garfunkel , Edward Hinpong Lee , Joseph Francis Smyth , Samuel Wonder Yuan
IPC分类号： G11B5/31 , G11B5/33 , G11B5/39
CPC分类号： G11B5/3967 , G11B5/313 , G11B5/3163 , G11B5/332 , Y10T29/49021 , Y10T29/49044 , Y10T29/49046
摘要： Disclosed is a merged thin film magnetic head having a first shield layer and a combined second shield and bottom pole piece layer arranged in a sandwich supporting a read sensor therebetween at the pole tip region. The combined second shield and bottom pole piece layer are magnetically coupled with the first shield layer at the pole tip end of the yoke region adjacent the read sensor, and overlaying and magnetically coupled with the first shield layer at the back gap region. A patterned opening is provided in the combined second shield and bottom pole piece layer at the yoke region thereof to expose the first shield layer and form a flat planarization surface thereon. A plurality of stacked thin film coil layers are provided in the patterned opening, and a top pole piece layer overlies the thin film coil at the yoke region, overlies the bottom pole piece at the pole tip region providing a pole tip and gap thereat, and overlies the bottom pole piece at the back gap region. The patterned opening which exposes the first shield layer allows the provision of a multi-layer coil while maintaining a low profile of the head.
摘要翻译：公开了一种合并的薄膜磁头，其具有第一屏蔽层和组合的第二屏蔽层和底极片层，其布置成在极尖区域处支撑读取传感器的夹层。组合的第二屏蔽和底极片层与邻近读取传感器的磁轭区域的极端部处的第一屏蔽层磁耦合，并且在后隙区域与第一屏蔽层重叠并磁耦合。在组合的第二屏蔽层和底极片层中设置图案化的开口，以在其磁轭区域露出第一屏蔽层并在其上形成平坦的平坦化表面。在图案化开口中设置多个堆叠的薄膜线圈层，并且顶极片层覆盖在磁轭区域处的薄膜线圈，在极尖部分处覆盖提供极尖和间隙的极极片，并且在后隙区域覆盖底极片。暴露第一屏蔽层的图案化开口允许提供多层线圈，同时保持头部的低轮廓。

3. 发明授权

US06330128B1 Magnetic head assembly having open yoke write head with highly defined narrow track width 失效
标题翻译：磁头组件具有开口磁轭写头，具有高度限定的窄轨道宽度
公开(公告)号：US06330128B1
公开(公告)日：2001-12-11
申请号：US09299542
申请日：1999-04-26
申请人： Thomas Young Chang , Glen Adam Garfunkel , Edward Hin Pong Lee , Neil Leslie Robertson , Samuel Wonder Yuan
发明人： Thomas Young Chang , Glen Adam Garfunkel , Edward Hin Pong Lee , Neil Leslie Robertson , Samuel Wonder Yuan
IPC分类号： G11B5147
CPC分类号： G11B5/3103 , G11B5/3116 , G11B5/313 , G11B5/3146 , G11B5/3967 , Y10T29/49032 , Y10T29/49043 , Y10T29/49044 , Y10T29/4906
摘要： A magnetic head assembly has an open yoke type write head constructed on top of a read head so that the write head can be constructed with a very narrow track width without restraint by the requirements of the read head. The write head has first and second pole piece portions wherein the second pole piece portion has separate front and back layer portions. A coil layer is wrapped around only the first pole piece portion and the back layer portion so that the front layer portion can be constructed separately to provide a narrow track width. Further, in a preferred embodiment the front layer portion has a reduced thickness and a higher magnetic moment than the thickness and magnetic moment of the first pole piece portion and the back layer portion. Still further, in a preferred embodiment the first pole piece portion and the back layer portion are planar due to planarization of underlying layers.
摘要翻译：磁头组件具有构造在读头的顶部上的开式轭型写入头，使得写入头可以被构造成具有非常窄的轨道宽度，而不受读取头的要求的限制。写头具有第一和第二极靴部分，其中第二极靴部分具有分离的前部和后部部分。线圈层仅缠绕在第一极靴部分和背层部分上，使得前层部分可以分开构造以提供窄的轨道宽度。此外，在优选实施例中，前层部分具有比第一极靴部分和背部部分的厚度和磁矩更小的厚度和更高的磁矩。此外，在优选实施例中，由于下层的平坦化，第一极片部分和背层部分是平面的。

4. 发明授权

US06725527B2 Method of making a magnetic head assembly having open yoke write head with highly defined narrow track width 失效
标题翻译：制造具有高度限定的窄轨道宽度的开放磁轭写头的磁头组件的方法
公开(公告)号：US06725527B2
公开(公告)日：2004-04-27
申请号：US09908083
申请日：2001-07-18
申请人： Thomas Young Chang , Glen Adam Garfunkel , Edward Hin Pong Lee , Neil Leslie Robertson , Samuel Wonder Yuan
发明人： Thomas Young Chang , Glen Adam Garfunkel , Edward Hin Pong Lee , Neil Leslie Robertson , Samuel Wonder Yuan
IPC分类号： G11B5127
CPC分类号： G11B5/3103 , G11B5/3116 , G11B5/313 , G11B5/3146 , G11B5/3967 , Y10T29/49032 , Y10T29/49043 , Y10T29/49044 , Y10T29/4906
摘要： A magnetic head assembly has an open yoke type write head constructed on top of a read head so that the write head can be constructed with a very narrow track width without restraint by the requirements of the read head. The write head has first and second pole piece portions wherein the second pole piece portion has separate front and back layer portions. A coil layer is wrapped around only the first pole piece portion and the back layer portion so that the front layer portion can be constructed separately to provide a narrow track width. Further, in a preferred embodiment the front layer portion has a reduced thickness and a higher magnetic moment than the thickness and magnetic moment of the first pole piece portion and the back layer portion. Still further, in a preferred embodiment the first pole piece portion and the back layer portion are planar due to polarization of underlying layers.
摘要翻译：磁头组件具有构造在读头的顶部上的开式轭型写入头，使得写入头可以被构造成具有非常窄的轨道宽度，而不受读取头的要求的限制。写头具有第一和第二极靴部分，其中第二极靴部分具有分离的前部和后部部分。线圈层仅缠绕在第一极靴部分和背层部分上，使得前层部分可以分开构造以提供窄的轨道宽度。此外，在优选实施例中，前层部分具有比第一极靴部分和背部部分的厚度和磁矩更小的厚度和更高的磁矩。此外，在优选实施例中，由于下层的极化，第一极靴部分和后层部分是平面的。

5. 发明授权

US6085406A Method of making a read head with improved lead layers at an air bearing surface 失效
标题翻译：在空气轴承表面制造具有改进的引线层的读取头的方法
公开(公告)号：US6085406A
公开(公告)日：2000-07-11
申请号：US176387
申请日：1998-10-21
申请人： Glen Adam Garfunkel , Wen Chien (David) Hsiao , Edward Hinpong Lee , Douglas Johnson Werner
发明人： Glen Adam Garfunkel , Wen Chien (David) Hsiao , Edward Hinpong Lee , Douglas Johnson Werner
IPC分类号： G11B5/31 , G11B5/39 , G11B5/42
CPC分类号： B82Y25/00 , B82Y10/00 , G11B5/3103 , G11B5/3903 , G11B5/3967 , G11B2005/3996 , G11B5/3109 , G11B5/3163 , Y10T29/49044
摘要： The high resistance lead layers of a read head extend straight back into the head from each of the first and second edges of the read sensor. This lessens the length of each of the high resistance lead layers so that they do not have to be made thicker to satisfy resistance requirements. Accordingly, a lateral width of each high resistance lead portion along the ABS and a thickness thereof are chosen so as to minimize the thickness while yet satisfying the resistance requirements. Further, a method of making the first and second lead layers is provided that minimizes the thickness of the high resistance lead layers. Instead of constructing the high resistance lead layers first, the present method constructs the high resistance lead layers last so that the high resistance lead layers are not altered by subsequent processing steps.
摘要翻译：读头的高电阻引线层从读取传感器的第一和第二边缘的每一个直接返回到头部。这降低了每个高电阻引线层的长度，使得它们不必被制成更厚以满足电阻要求。因此，选择沿着ABS的每个高电阻引线部分的横向宽度及其厚度，以便在满足电阻要求的同时使厚度最小化。此外，提供了制造第一和第二引线层的方法，其使得高电阻引线层的厚度最小化。首先，代替构造高电阻引线层，本方法构造最后的高电阻引线层，使得高电阻引线层不会随后的处理步骤而改变。

6. 发明授权

US06176005B1 Method of making read head with improved lead layers 失效
标题翻译：使读取头与提高铅层的方法
公开(公告)号：US06176005B1
公开(公告)日：2001-01-23
申请号：US09212118
申请日：1998-12-15
申请人： Glen Adam Garfunkel , Wen-Chien David Hsiao , Edward Hinpong Lee , Douglas Johnson Werner
发明人： Glen Adam Garfunkel , Wen-Chien David Hsiao , Edward Hinpong Lee , Douglas Johnson Werner
IPC分类号： G11B5127
CPC分类号： G11B5/3903 , G11B5/3116 , G11B5/313 , G11B5/3163 , G11B5/3967 , G11B5/40 , Y10T29/49044 , Y10T29/49046 , Y10T29/49048
摘要： The present invention extends the high resistance lead layers of a read head straight back into the head from each of the first and second edges of the read sensor. This lessens the length of each of the high resistance lead layers so that they do not have to be made thicker to satisfy resistance requirements. Accordingly, a lateral width of each high resistance lead portion along the ABS and a thickness thereof are chosen so as to minimize the thickness while yet satisfying the resistance requirements. Further, a method of making the first and second lead layers is provided that minimizes the thickness of the high resistance lead layers. Instead of constructing the high resistance lead layers first, the present method constructs the high resistance lead layers after defining a stripe height of the read sensor so that the lateral expanse of the high resistance lead layers is not altered by ion milling, which ion milling increases the resistance of the high resistance lead layers.
摘要翻译：本发明将读头的高电阻引线层从读取传感器的第一和第二边缘的每一个直接延伸到头部。这降低了每个高电阻引线层的长度，使得它们不必被制成更厚以满足电阻要求。因此，选择沿着ABS的每个高电阻引线部分的横向宽度及其厚度，以便在满足电阻要求的同时使厚度最小化。此外，提供了制造第一和第二引线层的方法，其使得高电阻引线层的厚度最小化。首先，不是首先构造高电阻引线层，而是在限定读取传感器的条带高度之后构造高电阻引线层，使得高电阻引线层的横向扩展不会被离子铣削改变，离子铣削增加高电阻铅层的电阻。

7. 发明授权

US06570743B1 READ HEAD WITH HIGH AND LOW RESISTANCE LEAD LAYERS WHEREIN THE HIGH RESISTANCE LEAD LAYERS ARE CONNECTED TO A READ SENSOR AND EXTEND PERPENDICULAR FROM AN AIR BEARING SURFACE (ABS) OF THE READ HEAD BEYOND A BACK RECESSED EDGE OF THE SENSOR WHERE THE HIGH RESISTANCE LEAD LAYERS ARE CONNECTED TO THE LOW RESISTANCE LAYERS 失效
标题翻译：阅读头带有高电阻和低电阻的导线层，其中高电阻引线层连接到读取传感器，并从读取头的空气轴承表面（ABS）延伸到背面的传感器的高度电阻导线层的背部边缘连接到低电阻层
公开(公告)号：US06570743B1
公开(公告)日：2003-05-27
申请号：US09616178
申请日：2000-07-14
申请人： Glen Adam Garfunkel , Wen-Chien (David) Hsiao , Edward Hinpong Lee , Douglas Johnson Werner
发明人： Glen Adam Garfunkel , Wen-Chien (David) Hsiao , Edward Hinpong Lee , Douglas Johnson Werner
IPC分类号： G11B539
CPC分类号： G11B5/3903 , G11B5/3116 , G11B5/313 , G11B5/3163 , G11B5/3967 , G11B5/40 , Y10T29/49044 , Y10T29/49046 , Y10T29/49048
摘要： The present invention extends the high resistance lead layers of a read head straight back into the head from each of the first and second edges of the read sensor. This lessens the length of each of the high resistance lead layers so that they do not have to be made thicker to satisfy resistance requirements. Accordingly, a lateral width of each high resistance lead portion along the ABS and a thickness thereof are chosen so as to minimize the thickness while yet satisfying the resistance requirements. Further, a method of making the first and second lead layers is provided that minimizes the thickness of the high resistance lead layers. Instead of constructing the high resistance lead layers first, the present method constructs the high resistance lead layers after defining a stripe height of the read sensor so that the lateral expanse of the high resistance lead layers is not altered by ion milling, which ion milling increases the resistance of the high resistance lead layers.
摘要翻译：本发明将读头的高电阻引线层从读取传感器的第一和第二边缘的每一个直接延伸到头部。这降低了每个高电阻引线层的长度，使得它们不必被制成更厚以满足电阻要求。因此，选择沿着ABS的每个高电阻引线部分的横向宽度及其厚度，以便在满足电阻要求的同时使厚度最小化。此外，提供了制造第一和第二引线层的方法，其使得高电阻引线层的厚度最小化。首先，不是首先构造高电阻引线层，而是在限定读取传感器的条带高度之后构建高电阻引线层，使得高电阻引线层的横向扩展不会通过离子铣削而改变，离子铣削增加高电阻铅层的电阻。

8. 发明授权

US06430011B1 Read head with improved lead layers at an air bearing surface 失效
标题翻译：在空气轴承表面上读取具有改进的铅层的头部
公开(公告)号：US06430011B1
公开(公告)日：2002-08-06
申请号：US09556055
申请日：2000-04-21
申请人： Glen Adam Garfunkel , Wen Chien David Hsiao , Edward Hinpong Lee , Douglas Johnson Werner
发明人： Glen Adam Garfunkel , Wen Chien David Hsiao , Edward Hinpong Lee , Douglas Johnson Werner
IPC分类号： G11B539
CPC分类号： B82Y25/00 , B82Y10/00 , G11B5/3103 , G11B5/3109 , G11B5/3163 , G11B5/3903 , G11B5/3967 , G11B2005/3996 , Y10T29/49044
摘要： The present invention extends the high resistance lead layers of a read head straight back into the head from each of the first and second edges of the read sensor. This lessens the length of each of the high resistance lead layers so that they do not have to be made thicker to satisfy resistance requirements. Accordingly, a lateral width of each high resistance lead portion along the ABS and a thickness thereof are chosen so as to minimize the thickness while yet satisfying the resistance requirements. Further, a method of making the first and second lead layers is provided that minimizes the thickness of the high resistance lead layers. Instead of constructing the high resistance lead layers first, the present method constructs the high resistance lead layers last so that the high resistance lead layers are not altered by subsequent processing steps.
摘要翻译：本发明将读头的高电阻引线层从读取传感器的第一和第二边缘的每一个直接延伸到头部。这降低了每个高电阻引线层的长度，使得它们不必被制成更厚以满足电阻要求。因此，选择沿着ABS的每个高电阻引线部分的横向宽度及其厚度，以便在满足电阻要求的同时使厚度最小化。此外，提供了制造第一和第二引线层的方法，其使得高电阻引线层的厚度最小化。首先，代替构造高电阻引线层，本方法构造最后的高电阻引线层，使得高电阻引线层不会随后的处理步骤而改变。

9. 发明授权

US5735036A Lapping process for minimizing shorts and element recession at magnetic head air bearing surface 失效
标题翻译：用于最小化磁头空气轴承表面的短路和元件衰退的研磨工艺
公开(公告)号：US5735036A
公开(公告)日：1998-04-07
申请号：US476787
申请日：1995-06-07
申请人： Robert Owen Barr , Alain M. Desouches , John P. Herber , Robert Glenn Biskeborn , Carol Y. Inouye , David John Seagle , Albert John Wallash , Glen Adam Garfunkel , Sanford Joel Lewis
发明人： Robert Owen Barr , Alain M. Desouches , John P. Herber , Robert Glenn Biskeborn , Carol Y. Inouye , David John Seagle , Albert John Wallash , Glen Adam Garfunkel , Sanford Joel Lewis
IPC分类号： B24B19/26 , B24B37/00 , B24B47/02 , G11B5/10 , G11B5/187 , G11B5/31 , G11B5/39 , G11B5/40 , G11B5/60 , H01F7/06 , G11B5/42
CPC分类号： B82Y25/00 , B24B19/26 , B24B37/00 , B24B37/048 , B24B47/02 , B82Y10/00 , G11B5/10 , G11B5/1871 , G11B5/3106 , G11B5/3163 , G11B5/3903 , G11B5/6005 , G11B2005/3996 , G11B5/3967 , G11B5/40 , Y10T29/49041 , Y10T29/4905
摘要： A method of lapping the air bearing surface of a magnetoresistive head which minimizes the likelihood of interelement shorts at the air bearing surface is described. In a final, linear lapping phase, the air bearing surface is lapped back and forth parallel to the longitudinal axis of the head elements in an oscillatory path across a stationary lapping surface. Any scratches or smears of the elements will be along the length of the elements rather than transverse to the elements. Any transverse scratches or smears occurring in earlier lapping phases will be removed during the linear lapping phase.
摘要翻译：描述了一种研磨磁阻头的空气轴承表面的方法，其使在空气轴承表面处的内部短路的可能性最小化。在最终的线性研磨阶段中，空气轴承表面在穿过固定研磨表面的振荡路径中平行于头部元件的纵向轴线平行地前后折叠。元素的任何划痕或污迹将沿着元素的长度而不是横向于元素。在线性研磨阶段期间，在早期研磨阶段发生的任何横向划痕或涂片将被去除。

10. 发明授权

US06538857B1 Read head with N-cycle switch for electrostatic discharge (ESD) protection 失效
标题翻译：读头用N周期开关进行静电放电（ESD）保护
公开(公告)号：US06538857B1
公开(公告)日：2003-03-25
申请号：US09662247
申请日：2000-09-14
申请人： Saad Doss , Glen Adam Garfunkel , Edward Hin Pong Lee , Chie Ching Poon , Neil Leslie Robertson , Andrew Ching Tam
发明人： Saad Doss , Glen Adam Garfunkel , Edward Hin Pong Lee , Chie Ching Poon , Neil Leslie Robertson , Andrew Ching Tam
IPC分类号： G11B540
CPC分类号： G11B5/4853 , G11B5/3106 , G11B5/3903 , G11B5/40 , G11B5/4806 , G11B2005/0016
摘要： A read head is provided with an N-cycle switch for sequentially shorting and unshorting a sense current circuit of a read head so that the read head will be protected from electrostatic discharges (ESDs) by shorting when the read head is not being tested and unshorted during tests of the read head. The shorting and unshorting switches, which are mounted on or in a slider carrying the read head, are activated by a laser beam.
摘要翻译：读头设置有N周期开关，用于顺序地短路和取消点读头的感测电流电路，使得当读头不被测试且未被排序时，通过短路来保护读头免受静电放电（ESD）的影响在读头测试期间。安装在携带读取头的滑块上或其中的短路和非启动开关由激光束激活。

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