公开(公告)号：US06687083B2

公开(公告)日：2004-02-03

申请号：US09935361

申请日：2001-08-22

Applicant: Wenchein Hsiao ,  Edward Hin Pong Lee ,  Neil Leslie Robertson ,  Hugo Alberto Emilio Santini ,  Joseph Francis Smyth ,  Samuel Wei-san Yuan

Inventor： Wenchein Hsiao ,  Edward Hin Pong Lee ,  Neil Leslie Robertson ,  Hugo Alberto Emilio Santini ,  Joseph Francis Smyth ,  Samuel Wei-san Yuan

IPC: G11B5147

CPC classification number: G11B5/3967 ,  G11B5/3116 ,  G11B5/313 ,  G11B5/3136 ,  G11B5/3163

Abstract: An low profile inductive write head is provided to improve track definition and head efficiency and to reduce overcoat and pole tip protrusion and cracking caused by thermal expansion. A first insulation layer of an insulation stack enclosing the coil layer is formed of an non-magnetic inorganic insulator material such as aluminum oxide, silicon dioxide or titanium dioxide having a thickness of in the range of 0.2-0.3 microns. The thinner first insulation layer results in a significantly reduced slope of the insulation stack which decreases reflective notching during processing of the second pole tip to improve track definition. Improved thermal conduction properties of the inorganic insulator material improves heat sinking of the write coil reducing overcoat and pole tip protrusion and cracking at the pole tip/write gap layer interface.

Abstract translation: 提供了一种低调的感应写头，以提高轨道清晰度和头部效率，并减少由热膨胀引起的外涂层和极尖突起和开裂。 封闭线圈层的绝缘堆叠的第一绝缘层由厚度为0.2-0.3微米的非磁性无机绝缘体材料例如氧化铝，二氧化硅或二氧化钛形成。 较薄的第一绝缘层导致绝缘堆叠的显着减小的斜率，这降低了在第二极尖的处理期间的反射缝合，以改善轨道定义。 无机绝缘体材料的改进的导热性能改善了写入线圈的散热，从而减小了极尖/写入间隙层界面处的外涂层和极尖突起以及开裂。

公开(公告)号：US07170713B2

公开(公告)日：2007-01-30

申请号：US10215230

申请日：2002-08-08

Applicant: Savas Gider ,  Wenchein Hsiao ,  Vladimir Nikitin

Inventor： Savas Gider ,  Wenchein Hsiao ,  Vladimir Nikitin

IPC: G11B5/127

CPC classification number: G11B5/3136 ,  G11B5/012 ,  G11B5/105 ,  G11B5/3103 ,  G11B5/3106 ,  G11B5/3133 ,  G11B5/332 ,  G11B5/4886

Abstract: An effective heat sink is provided for a magnetic recording head. The heat sink conducts heat away from the recording head thus limiting the range of temperatures to which the recording head is subjected. A heat sink on a recording head significantly reduces heat induced protrusion.

Abstract translation: 为磁记录头提供有效的散热器。 散热器将热量从记录头导出，从而限制了记录头经受的温度范围。 记录头上的散热片显着减少了热引起的突起。

公开(公告)号：US07181826B2

公开(公告)日：2007-02-27

申请号：US10843686

申请日：2004-05-10

Applicant: Wenchein Hsiao ,  Edward Hin Pong Lee ,  Bradley D. Webb

Inventor： Wenchein Hsiao ,  Edward Hin Pong Lee ,  Bradley D. Webb

IPC: G11B5/127 ,  G11B5/147

CPC classification number: G11B5/313 ,  G11B5/17 ,  G11B5/3163 ,  G11B5/3967 ,  G11B5/40 ,  Y10T29/49021 ,  Y10T29/49032 ,  Y10T29/49039 ,  Y10T29/49043 ,  Y10T29/49044 ,  Y10T29/49046 ,  Y10T29/4906

Abstract: A system and method are provided for manufacturing a magnetic head. Initially, a coil structure, a first pole layer, and a gap layer are formed. A second pole layer is then deposited to form a pair of flanking portions flanking a central portion of the second pole layer. Thereafter, the second pole layer is masked with a photoresist layer. During manufacture, the flanking portions of the second pole layer work in conjunction with the photoresist layer to substantially protect the coil structure from damage.

Abstract translation: 提供了用于制造磁头的系统和方法。 最初，形成线圈结构，第一极层和间隙层。 然后沉积第二极层以形成在第二极层的中心部分侧面的一对侧翼部分。 此后，用光致抗蚀剂层掩蔽第二极层。 在制造期间，第二极层的侧面部分与光致抗蚀剂层一起工作，以基本上保护线圈结构免受损坏。

公开(公告)号：US06906893B2

公开(公告)日：2005-06-14

申请号：US10267345

申请日：2002-10-08

Applicant: Wenchein Hsiao ,  Edward Hin Pong Lee ,  Bradley D. Webb

Inventor： Wenchein Hsiao ,  Edward Hin Pong Lee ,  Bradley D. Webb

IPC: G11B5/17 ,  G11B5/31 ,  G11B5/39 ,  G11B5/40 ,  G11B5/147

CPC classification number: G11B5/313 ,  G11B5/17 ,  G11B5/3163 ,  G11B5/3967 ,  G11B5/40 ,  Y10T29/49021 ,  Y10T29/49032 ,  Y10T29/49039 ,  Y10T29/49043 ,  Y10T29/49044 ,  Y10T29/49046 ,  Y10T29/4906

Abstract: A system and method are provided for manufacturing a magnetic head. Initially, a coil structure, a first pole layer, and a gap layer are formed. A second pole layer is then deposited to form a pair of flanking portions flanking a central portion of the second pole layer. Thereafter, the second pole layer is masked with a photoresist layer. During manufacture, the flanking portions of the second pole layer work in conjunction with the photoresist layer to substantially protect the coil structure from damage.

Abstract translation: 提供了用于制造磁头的系统和方法。 最初，形成线圈结构，第一极层和间隙层。 然后沉积第二极层以形成在第二极层的中心部分侧面的一对侧翼部分。 此后，用光致抗蚀剂层掩蔽第二极层。 在制造期间，第二极层的侧面部分与光致抗蚀剂层一起工作，以基本上保护线圈结构免受损坏。

公开(公告)号：US06785098B2

公开(公告)日：2004-08-31

申请号：US10294213

申请日：2002-11-13

Applicant: Wenchein Hsiao ,  Quan-chiu Harry Lam ,  Edward Hin Pong Lee

Inventor： Wenchein Hsiao ,  Quan-chiu Harry Lam ,  Edward Hin Pong Lee

IPC: G11B531

CPC classification number: G11B5/012 ,  G11B5/02 ,  G11B5/09 ,  G11B5/2452 ,  G11B5/3116 ,  G11B5/312 ,  G11B5/3967

Abstract: A write head has a variable throat height wherein the throat height is dependent upon the frequency of operation of the write head. At high frequency operation the throat height is small and at low frequency operation the throat height is large. The write head writes hard into a circular track of a rotating magnetic disk at all frequencies but not overly hard at low frequencies thereby avoiding excessive erase bands and adjacent track interference (ATI) on each side of the track being written.

Abstract translation: 写头具有可变的喉部高度，其中喉部高度取决于写入头的操作频率。 在高频操作下，喉部高度小，在低频操作时喉部高度较大。 写入头在所有频率上硬写入旋转磁盘的圆形轨道，但在低频下不会过硬，从而避免写入轨道的每一侧上的过多擦除带和相邻轨道干扰（ATI）。