公开(公告)号：US5936814A

公开(公告)日：1999-08-10

申请号：US865473

申请日：1997-05-29

Applicant: Steven B. Slade ,  Kenneth P. Ash ,  Huy X. Pham ,  Patrick C. Darst

Inventor： Steven B. Slade ,  Kenneth P. Ash ,  Huy X. Pham ,  Patrick C. Darst

IPC: G11B5/31 ,  G11B5/147 ,  G11B5/127

CPC classification number: G11B5/3163 ,  G11B5/3116 ,  G11B5/312 ,  G11B5/313 ,  Y10T29/49032

Abstract: A writer portion of a recording head is disclosed. The writer portion includes a lower magnetic pole. An oxide gap is positioned on the lower magnetic pole. A first insulating layer is positioned on a first portion of the gap oxide, the first insulator layer having a planarized top surface. A plurality of intermediate insulating layers are positioned on top of the first insulating layer. Each intermediate insulating layer encapsulates a layer of conductive coils and has a planarized top surface. A last insulating layer is positioned on top of a portion of the plurality of intermediate insulating layers and on top of a second portion of the gap oxide. An upper magnetic pole is positioned on top of the last insulating layer and on top of a third portion of the gap oxide.

Abstract translation: 公开了记录头的写入器部分。 写入器部分包括下磁极。 氧化物间隙位于下磁极上。 第一绝缘层位于间隙氧化物的第一部分上，第一绝缘体层具有平坦化的顶表面。 多个中间绝缘层位于第一绝缘层的顶部。 每个中间绝缘层封装一层导电线圈并具有平坦化的顶表面。 最后的绝缘层位于多个中间绝缘层的一部分的顶部上，并且位于间隙氧化物的第二部分的顶部上。 上磁极位于最后一个绝缘层的顶部，并且位于间隙氧化物的第三部分的顶部。

公开(公告)号：US06754947B2

公开(公告)日：2004-06-29

申请号：US09928783

申请日：2001-08-13

Applicant: Frank E. Stageberg ,  Kenneth P. Ash ,  James K. Price ,  Feng Wang ,  Elzbieta J. Haftek ,  Allan E. Schultz ,  Richard P. Larson

Inventor： Frank E. Stageberg ,  Kenneth P. Ash ,  James K. Price ,  Feng Wang ,  Elzbieta J. Haftek ,  Allan E. Schultz ,  Richard P. Larson

IPC: G11B5127

CPC classification number: G11B5/3967 ,  G11B5/3116 ,  G11B5/313 ,  G11B5/3153 ,  G11B5/3163 ,  Y10T29/49025 ,  Y10T29/49032 ,  Y10T29/49041 ,  Y10T29/49043 ,  Y10T29/49044

Abstract: A process of forming a two-piece pole for an inductive write head involves first forming a first pole piece having a width between opposite side surfaces defining a gap width of a transducing gap at an air bearing surface of the head. The process next involves forming a second pole piece having a first region remote from the air bearing surface and a second region extending from the first region toward the air bearing surface. The first region is wider than the width of the first pole piece. The second pole piece is formed so that at least a portion of the second region is contiguous a portion of the first pole piece and so that no sharp external corners exist between the first pole tip piece and the second pole piece within a pole tip region of the head.

Abstract translation: 形成用于感应写头的双片极的过程包括首先形成第一极片，该第一极片在相对的侧表面之间具有限定在头部的空气支承表面处的换能间隙的间隙宽度的宽度。 该过程接下来涉及形成具有远离空气支承表面的第一区域的第二极靴和从第一区域向空气支承表面延伸的第二区域。 第一区域比第一极靴的宽度宽。 第二极靴被形成为使得第二区域的至少一部分邻接第一极靴的一部分，并且使得在第一极靴末端区域和第二极靴区域内的第一极尖端部件和第二极靴之间不存在尖锐的外角 头部。

公开(公告)号：US06301076B1

公开(公告)日：2001-10-09

申请号：US09246448

申请日：1999-02-09

Applicant: Frank E. Stageberg ,  Kenneth P. Ash ,  James K. Price ,  Feng Wang ,  Elzbieta J. Haftek ,  Allan E. Schultz ,  Richard P. Larson

Inventor： Frank E. Stageberg ,  Kenneth P. Ash ,  James K. Price ,  Feng Wang ,  Elzbieta J. Haftek ,  Allan E. Schultz ,  Richard P. Larson

IPC: G11B5147

CPC classification number: G11B5/3967 ,  G11B5/3116 ,  G11B5/313 ,  G11B5/3153 ,  G11B5/3163 ,  Y10T29/49025 ,  Y10T29/49032 ,  Y10T29/49041 ,  Y10T29/49043 ,  Y10T29/49044

Abstract: A two-piece pole for an inductive write head has a first pole piece in the tip region contiguous the gap and confronting the other pole across the gap. The first pole piece has a width defining the gap width of the write head at the air bearing surface. A second pole piece is connected to the first pole piece and extends to the back gap. At least a portion of the second pole piece is connected to the first pole piece and has a width larger than the width of the first pole piece. The second pole piece means has surfaces within the pole tip region that intersect at external corners facing the gap, at least two surfaces of each of these external corners being joined at an obtuse angle so that none of said external corner is a sharp external corner, thereby minimizing fringe fields. In one form, a pole cap between the first and second pole pieces has a trapezoidal configuration forming the obtuse angles.

Abstract translation: 用于感应式写入头的两片式极头具有尖端区域中的与间隙连接的第一极片，并且将另一极对面跨越间隙。 第一极片具有限定写入头在空气支承表面处的间隙宽度的宽度。 第二极靴连接到第一极靴并延伸到后隙。 第二极靴的至少一部分连接到第一极靴，其宽度大于第一极靴的宽度。 第二极靴装置具有在极尖区域内的面向间隙的外角处的表面，这些外角中的每一个的至少两个表面以钝角连接，使得所述外角部都不是尖锐的外角， 从而最小化边缘场。 在一种形式中，第一和第二极片之间的极帽具有形成钝角的梯形构造。

公开(公告)号：US5666250A

公开(公告)日：1997-09-09

申请号：US190090

申请日：1994-02-01

Applicant: Frank E. Stageberg ,  Mark S. Miller ,  Kenneth P. Ash

Inventor： Frank E. Stageberg ,  Mark S. Miller ,  Kenneth P. Ash

IPC: G11B5/31 ,  G11B5/147

CPC classification number: G11B5/3163 ,  G11B5/3113 ,  G11B5/3153

Abstract: A thin film head (12) and a method for fabricating the same comprises depositing a first nickel seed layer (37) on a substrate (25), forming a bottom portion (16) of a magnetic core (13) on the first nickel seed layer (37), depositing a second nickel layer (39) and forming a top portion (14) of the magnetic core (13) on the second nickel seed layer (39). The stability of the thin film head (12) while in a relaxed state and its read performance are significantly improved.

Abstract translation: PCT No.PCT / US93 / 11571 Sec。 371日期1994年2月1日 102（e）1994年2月1日PCT 1993年11月23日PCT公布。 WO95 / 14991 PCT出版物 日期：1995年6月1日，薄膜头（12）及其制造方法包括在基板（25）上沉积第一镍籽晶层（37），形成磁芯（13）的底部（16） 在第一镍籽晶层（37）上沉积第二镍层（39）并在第二镍籽晶层（39）上形成磁芯（13）的顶部部分（14）。 在松弛状态下薄膜头（12）的稳定性及其读取性能得到显着提高。

公开(公告)号：US5640753A

公开(公告)日：1997-06-24

申请号：US477290

申请日：1995-06-07

Applicant: Allan E. Schultz ,  Frank S. Stageberg ,  Kenneth P. Ash ,  Brian S. Zak

Inventor： Allan E. Schultz ,  Frank S. Stageberg ,  Kenneth P. Ash ,  Brian S. Zak

IPC: G11B5/31 ,  G11B5/39 ,  G11B5/127

CPC classification number: G11B5/3967 ,  G11B5/3903 ,  G11B5/3163 ,  Y10T29/49034 ,  Y10T29/49039 ,  Y10T29/49043 ,  Y10T29/49046 ,  Y10T29/49048 ,  Y10T29/49067

Abstract: A method of fabricating an inverted magnetoresistive head is disclosed. The method includes fabricating a writer. The writer includes a bottom pole positioned within a recessed substrate. The bottom pole is filled with copper coils and polymer. A write gap, a pole tip, and a top pole/bottom shield are fabricated on a portion of the polymer. A top surface of both the polymer and the write gap are planarized to provide a substantially smooth surface upon which a reader can be placed. The reader is fabricated on top of the writer and includes a first reader gap, a magnetoresistive element, a second reader gap, and a shield.

Abstract translation: 公开了一种制造反相磁阻磁头的方法。 该方法包括制作作者。 写入器包括位于凹入的衬底内的底极。 底极填充有铜线圈和聚合物。 在聚合物的一部分上制造写间隙，极尖和顶极/底屏蔽。 聚合物和写入间隙的顶表面被平坦化以提供基本平滑的表面，读取器可以放置在该基本光滑的表面上。 读写器在写入器的顶部制造并且包括第一读取器间隙，磁阻元件，第二读取器间隙和屏蔽。

公开(公告)号：US6018862A

公开(公告)日：2000-02-01

申请号：US159330

申请日：1998-09-23

Applicant: Frank Stageberg ,  Kenneth P. Ash ,  Feng Wang ,  Sara L. Gordon ,  Wojciech Worwag ,  Katrina Rook ,  Kevin Welsh

Inventor： Frank Stageberg ,  Kenneth P. Ash ,  Feng Wang ,  Sara L. Gordon ,  Wojciech Worwag ,  Katrina Rook ,  Kevin Welsh

IPC: G11B5/31 ,  G11B5/39 ,  G11B5/127

CPC classification number: G11B5/3967 ,  G11B5/3116 ,  G11B5/313 ,  G11B5/3153 ,  G11B5/3163 ,  Y10T29/49032 ,  Y10T29/49043 ,  Y10T29/49044 ,  Y10T29/49046 ,  Y10T29/49048

Abstract: A first layer of magnetic material is deposited onto a substrate to form a bottom pole of an inductive transducer. A second layer of magnetic material is plated on the first layer of magnetic material within the pole tip region to form a bottom pole extension. A layer of non-magnetic metal is then plated on the bottom pole extension to form the gap. A third layer of magnetic material is then plated on the gap layer to form the top pole extension. In one form of the invention, a mask is employed to define a good zero throat level surface to the pole tip region.

Abstract translation: 将第一层磁性材料沉积在基底上以形成感应换能器的底极。 磁极材料的第二层被镀在磁极材料的第一层磁极尖端区域内以形成底极延伸部分。 然后将一层非磁性金属镀在底极延伸部上以形成间隙。 然后将第三层磁性材料镀在间隙层上以形成顶极延伸部。 在本发明的一种形式中，使用掩模来将极好的喉部水平面限定到极尖区域。

公开(公告)号：US5668689A

公开(公告)日：1997-09-16

申请号：US695756

申请日：1996-08-08

Applicant: Allan E. Schultz ,  Frank S. Stageberg ,  Kenneth P. Ash ,  Brian S. Zak

Inventor： Allan E. Schultz ,  Frank S. Stageberg ,  Kenneth P. Ash ,  Brian S. Zak

IPC: G11B5/39

CPC classification number: G11B5/3903 ,  G11B5/3967

Abstract: An inverted magnetoresistive head is disclosed. The inverted magnetoresistive head includes a reader positioned on top of a writer. The writer includes a bottom pole, a polymer insulator, a write gap, a pole tip and a top pole. The reader includes a bottom shield, a first reader gap, a magnetoresistive element, electrical contacts, a second reader gap and a shield.

Abstract translation: 公开了一种反转磁阻磁头。 反转磁阻头包括位于写入器顶部的读取器。 作者包括底极，聚合物绝缘体，写间隙，极尖和顶极。 读取器包括底部屏蔽，第一读取器间隙，磁阻元件，电触点，第二读取器间隙和屏蔽。