公开(公告)号：EP1503372B1

公开(公告)日：2007-04-18

申请号：EP04004282.2

申请日：2004-02-25

申请人： Hitachi Global Storage Technologies, Inc.

发明人： Khera, Gautam ,  Le, Quang ,  Nguyen, Son Van ,  Pentek, Aron ,  Williams III, Mason Lamar

IPC分类号： G11B5/127 ,  G11B5/31

CPC分类号： G11B5/127 ,  G11B5/1278 ,  G11B5/31 ,  G11B5/3153 ,  G11B5/3176 ,  G11B5/33

公开(公告)号：EP1503372A3

公开(公告)日：2006-03-29

申请号：EP04004282.2

申请日：2004-02-25

申请人： Hitachi Global Storage Technologies, Inc.

发明人： Khera, Gautam ,  Le, Quang ,  Nguyen, Son Van ,  Pentek, Aron ,  Williams III, Mason Lamar

IPC分类号： G11B5/127 ,  G11B5/31

CPC分类号： G11B5/127 ,  G11B5/1278 ,  G11B5/31 ,  G11B5/3153 ,  G11B5/3176 ,  G11B5/33

摘要： A perpendicular recording write head has ferromagnetic first and second pole pieces which are connected at a back gap and an insulation stack with a write coil layer embedded therein is located between the first and second pole pieces and between a head surface of the write head and the back gap. The second pole piece has a pole tip which is located at the head surface and a recessed ferromagnetic write shield layer. A nonmagnetic isolation layer is located between the second pole piece and the write shield layer and at least one ferromagnetic stud is magnetically connected between the first pole piece layer and the write shield layer and is located between the head surface and the insulation stack.

公开(公告)号：EP1503372A2

公开(公告)日：2005-02-02

申请号：EP04004282.2

申请日：2004-02-25

申请人： Hitachi Global Storage Technologies, Inc.

发明人： Khera, Gautam ,  Le, Quang ,  Nguyen, Son Van ,  Pentek, Aron ,  Williams III, Mason Lamar

IPC分类号： G11B5/127 ,  G11B5/31

CPC分类号： G11B5/127 ,  G11B5/1278 ,  G11B5/31 ,  G11B5/3153 ,  G11B5/3176 ,  G11B5/33

摘要： A perpendicular recording write head has ferromagnetic first and second pole pieces which are connected at a back gap and an insulation stack with a write coil layer embedded therein is located between the first and second pole pieces and between a head surface of the write head and the back gap. The second pole piece has a pole tip which is located at the head surface and a recessed ferromagnetic write shield layer. A nonmagnetic isolation layer is located between the second pole piece and the write shield layer and at least one ferromagnetic stud is magnetically connected between the first pole piece layer and the write shield layer and is located between the head surface and the insulation stack.

摘要翻译： 垂直记录写头具有在后隙连接的铁磁第一和第二极片，并且其中嵌入有写入线圈层的绝缘堆叠位于第一和第二极靴之间以及写头的头表面和 后退差距 第二极靴具有位于头表面的磁极尖端和凹陷的铁磁写入屏蔽层。 非磁性隔离层位于第二极靴和写入屏蔽层之间，并且至少一个铁磁螺柱磁性连接在第一极靴层和写入屏蔽层之间，并位于头部表面和绝缘堆叠之间。