公开(公告)号：US07583477B2

公开(公告)日：2009-09-01

申请号：US10610008

申请日：2003-06-30

申请人： James K. Price ,  Amin Nurul ,  Alaxender M. Shukh ,  Feng Wang ,  Martin L. Plumer

发明人： James K. Price ,  Amin Nurul ,  Alaxender M. Shukh ,  Feng Wang ,  Martin L. Plumer

IPC分类号： G11B5/127

CPC分类号： G11B5/1871 ,  G11B5/012 ,  G11B5/127 ,  G11B5/1278 ,  G11B5/3116 ,  G11B5/3163 ,  G11B5/39 ,  G11B5/3967 ,  G11B2005/001 ,  G11B2005/0029 ,  Y10T29/49048

摘要： A magnetic recording head having a write pole formed in a point. The narrow width of the write pole can be manufactured using existing equipment, reduces the number of steps required to build the recording head, and results in a recording head that has other advantages. Forming the write pole in a point is done using two masking steps and mill processing. The writer and reader are positioned next to each other so that the second masking step which forms the point of the writer pole also defines the back edge of the stripe.

摘要翻译： 具有形成在一点上的写入极的磁记录头。 可以使用现有设备制造写入极的窄宽度，减少构建记录头所需的步骤数量，并且导致具有其他优点的记录头。 使用两个掩模步骤和轧机加工来形成一个点上的写极点。 写入器和读取器彼此相邻定位，使得形成写入器极点的第二掩蔽步骤也定义条纹的后边缘。

公开(公告)号：US07688545B1

公开(公告)日：2010-03-30

申请号：US10390447

申请日：2003-03-17

申请人： Vladyslav A. Vas'Ko ,  Frank E. Stageberg ,  Feng Wang ,  Vee S. Kong ,  Daniel J. Dummer ,  Martin L. Plumer

发明人： Vladyslav A. Vas'Ko ,  Frank E. Stageberg ,  Feng Wang ,  Vee S. Kong ,  Daniel J. Dummer ,  Martin L. Plumer

IPC分类号： G11B5/31

CPC分类号： G11B5/3153

摘要： A magnetic recording head with an overall planar design and tight dimensional control of throat height and notch width is achieved below the gap. Writer poles include very high magnetic moment material on both sides of the writer gap. Additionally the pole tips are shaped to provide high field with good spatial gradient for optimal writing conditions, thereby extending the capability of longitudinal recording heads for high density and high frequency applications.

摘要翻译： 实现了具有整体平面设计和喉部高度和切口宽度的紧密尺寸控制的磁记录头。 作者极点在写入器间隙的两侧都有非常高的磁矩材料。 此外，极尖被成形为提供具有良好空间梯度的高场，以获得最佳的写入条件，从而延长了用于高密度和高频应用的纵向记录头的能力。

公开(公告)号：US07298587B2

公开(公告)日：2007-11-20

申请号：US10309682

申请日：2002-12-04

申请人： Taras G. Pokhil ,  Ned Tabat ,  Martin L. Plumer ,  Steven P. Bozeman ,  Nurul Amin

发明人： Taras G. Pokhil ,  Ned Tabat ,  Martin L. Plumer ,  Steven P. Bozeman ,  Nurul Amin

IPC分类号： G11B5/147

CPC分类号： B82Y25/00 ,  B82Y10/00 ,  G11B5/3113 ,  G11B5/3116 ,  G11B5/332 ,  G11B5/3967 ,  G11B2005/3996

摘要： A magnetic recording head having an air bearing surface for confronting a surface of a rotating disc and comprising a pole tip and a generally rounded and substantially planar body attached to the pole tip is disclosed. The width of the pole tip defines a track width of data written to the rotating disc. The generally rounded shape of the top pole body is such that top pole magnetization gradually changes its direction and follows the edges of the body. Further, the pole tip has low remanence, gradual spin structure and no domain walls formed near the pole tip.

摘要翻译： 公开了一种磁记录头，其具有用于面对旋转盘的表面的空气轴承表面，并且包括极尖和连接到极尖的大致圆形且基本上平坦的主体。 极尖的宽度限定写入旋转盘的数据的轨迹宽度。 顶极体的大致圆形形状使得顶极磁化逐渐改变其方向并跟随身体的边缘。 此外，极尖具有低的剩磁，逐渐的自旋结构，并且在极尖附近没有形成畴壁。

公开(公告)号：US06342311B1

公开(公告)日：2002-01-29

申请号：US09588394

申请日：2000-06-06

申请人： Venkateswara R. Inturi ,  Martin L. Plumer ,  Charles H. Tolman ,  Steve Riemer ,  Ibro Tabakovic ,  Steven B. Slade

发明人： Venkateswara R. Inturi ,  Martin L. Plumer ,  Charles H. Tolman ,  Steve Riemer ,  Ibro Tabakovic ,  Steven B. Slade

IPC分类号： G11B566

CPC分类号： G11B5/653 ,  G11B5/3143 ,  G11B5/3163 ,  G11B5/656 ,  G11B5/66 ,  Y10S428/90 ,  Y10T428/11 ,  Y10T428/1186

摘要： A magnetic recording head has a magnetic pole tip and a seed layer upon which the magnetic pole tip is formed. The seed layer is preferably formed of a high magnetic moment material having a saturation magnetization of at least 1.8 Tesla and a high resistance to corrosion. In preferred embodiments of the present invention, the seed layer is preferably formed of 2.1 Tesla Fe44-46Co39-41Ni14.5-15, 1.8 Tesla Fe54-56Ni27-29Co16-18 Tesla Fe86-90Cr10-14, or 1.9 Tesla Fe52-62Co26-36Cr10-14, wherein the subscripts indicate a preferred range of atomic percentages for each element in the given alloy.

摘要翻译： 磁记录头具有形成磁极尖端的磁极尖端和种子层。 种子层优选由具有至少1.8特斯拉的饱和磁化强度和高耐腐蚀性的高磁矩材料形成。 在本发明的优选实施方案中，种子层优选由2.1特斯拉Fe44-46Co39-41Ni14.5-15,1.8特斯拉Fe54-56Ni27-29Co16-18特斯拉Fe86-90Cr10-14或1.9特斯拉Fe52-62Co26- 36Cr10-14，其中下标表示给定合金中每个元素的原子百分比的优选范围。

公开(公告)号：US07100266B2

公开(公告)日：2006-09-05

申请号：US10039201

申请日：2002-01-04

申请人： Martin L. Plumer ,  Nurul Amin ,  Vee S. Kong ,  Richard P. Michel ,  Johannes van Ek

发明人： Martin L. Plumer ,  Nurul Amin ,  Vee S. Kong ,  Richard P. Michel ,  Johannes van Ek

IPC分类号： G11B5/127 ,  H04R31/00

CPC分类号： G11B5/1871 ,  G11B5/012 ,  G11B5/1278 ,  G11B5/3116 ,  Y10T29/49032 ,  Y10T29/49043 ,  Y10T29/49044 ,  Y10T29/49046 ,  Y10T29/49048 ,  Y10T29/49052

摘要： A beveled writing pole includes a top portion, a beveled portion, and a throat portion. The top portion has an end that defines a writing pole tip. The beveled portion adjoins the top portion and has a bevel that extends from the writing pole tip and increases a thickness of the writing pole proximate the pole tip. The throat portion is formed of the top and beveled portions and has tapered sides that extend from the writing pole tip and increase a width of the writing pole proximate the writing pole tip. A method of forming the beveled writing pole is also presented.

摘要翻译： 斜面书写柱包括顶部，斜面部分和喉部。 顶部具有限定书写杆尖端的端部。 斜面部分与顶部相邻并且具有从书杆极端部延伸的斜面，并增加靠近极尖的书写杆的厚度。 喉部由顶部和斜面部分形成，并且具有从书写极端部延伸的锥形侧面，并增加书杆极靠近书杆极尖的宽度。 还提出了形成斜面书写柱的方法。

公开(公告)号：US06385016B1

公开(公告)日：2002-05-07

申请号：US09660087

申请日：2000-09-12

申请人： Johannes van Ek ,  Martin L. Plumer ,  Richard P. Michel ,  Michael C. Kautzky ,  Dimitar V. Dimitrov

发明人： Johannes van Ek ,  Martin L. Plumer ,  Richard P. Michel ,  Michael C. Kautzky ,  Dimitar V. Dimitrov

IPC分类号： G11B539

CPC分类号： B82Y25/00 ,  B82Y10/00 ,  G11B5/3903 ,  G11B5/40 ,  G11B2005/3996

摘要： A magnetic read head having an air bearing surface, a magnetoresistive sensor, an insulator layer, and first and second current contacts. The magnetoresistive sensor has a first portion adjacent to the air bearing surface and a second portion distal from the air bearing surface. The first and second current contacts are positioned in electrical contact with opposite edges of the first portion of the magnetoresistive sensor, and the insulator layer is positioned between the second portion of the magnetoresistive sensor and each of the first and second current contacts.

摘要翻译： 具有空气轴承表面的磁读头，磁阻传感器，绝缘体层以及第一和第二电流触点。 磁阻传感器具有与空气支承表面相邻的第一部分和远离空气支承表面的第二部分。 第一和第二电流触点定位成与磁阻传感器的第一部分的相对边缘电接触，并且绝缘体层位于磁阻传感器的第二部分和第一和第二电流触点中的每一个之间。

公开(公告)号：US07187519B2

公开(公告)日：2007-03-06

申请号：US10726881

申请日：2003-12-03

申请人： Frank E. Stageberg ,  Martin L. Plumer ,  Vee S. Kong

发明人： Frank E. Stageberg ,  Martin L. Plumer ,  Vee S. Kong

IPC分类号： G11B5/147

CPC分类号： G11B5/1272

摘要： A magnetic writer having an air bearing surface for confronting a surface of a rotating disc is disclosed. The magnetic writer includes a bottom pole and a top pole. The top pole includes a first top pole portion and a second top pole portion connected by a top pole extension. The top pole extension, which preferably has a uniform width at the air bearing surface, orients a magnetization of the first top pole portion substantially parallel to an air bearing surface of the magnetic writer. The bottom pole includes a base pole and a notch pole. The base pole is recessed from the air bearing surface to prevent or reduce fringe erasure fields. The notch pole, which abuts the base pole and extends from the air bearing surface to at least a magnetic throat height of the magnetic writer, has a magnetization oriented perpendicular to the air bearing surface.

摘要翻译： 公开了一种具有用于面对旋转盘的表面的空气轴承表面的磁性写入器。 磁性写入器包括底极和顶极。 顶极包括通过顶极延伸部连接的第一顶极部分和第二顶部极部分。 优选地，在空气轴承表面处具有均匀宽度的顶极延伸部使得第一顶极部分的磁化大致平行于磁性写入器的空气轴承表面。 底极包括基极和切口极。 基极从空气轴承表面凹陷，以防止或减少边缘擦除场。 与基座极接并从空气轴承表面延伸到至少磁性写入器的磁性喉部高度的切口极具有垂直于空气轴承表面的磁化。

公开(公告)号：US06562487B1

公开(公告)日：2003-05-13

申请号：US09835530

申请日：2001-04-16

申请人： Vladyslav A. Vas′ko ,  Venkateswara R. Inturi ,  Mark Kief ,  Steven Riemer ,  Martin L. Plumer

发明人： Vladyslav A. Vas′ko ,  Venkateswara R. Inturi ,  Mark Kief ,  Steven Riemer ,  Martin L. Plumer

IPC分类号： G11B566

CPC分类号： G11B5/3146 ,  G11B5/1278 ,  G11B5/3143 ,  G11B5/3967 ,  G11B2005/0029 ,  Y10S428/90 ,  Y10T428/1186

摘要： A magnetic head in a magnetic storage system is provided in which materials that do not individually display high permeability and low coercivity are satisfactorily employed in a write head when coupled to adjacent high permeability layers. The magnetic head includes a gap layer which separates a pair of poles. At least one pole of the pair of poles includes a pole layer formed of a high permeability material and a seed layer adjacent to the pole layer. The seed layer is formed of a high moment low permeability material having a high saturation magnetic moment greater than 2.1 Tesla and a low permeability of about 10-100. The high permeability material of the pole layer causes the permeability of the adjacent seed layer to substantially increase from about 10-100 to about 1400-1600, thereby providing a pole with high permeability and high saturation moment. In addition, a method of forming a magnetic head for use in a magnetic storage system is provided.

摘要翻译： 提供一种磁存储系统中的磁头，其中当耦合到相邻的高磁导率层时，在写入头中令人满意地使用不分别显示高磁导率和低矫顽力的材料。 磁头包括分离一对极的间隙层。 这对极的至少一个极包括由高磁导率材料形成的极层和与极层相邻的晶种层。 种子层由具有高于2.1特斯拉的高饱和磁矩和约10-100的低磁导率的高力矩低磁导率材料形成。 极层的高磁导率材料导致相邻种子层的磁导率基本上从大约10-100至大约1400-1600增加，从而提供具有高磁导率和高饱和力矩的磁极。 此外，提供了一种形成用于磁存储系统的磁头的方法。