公开(公告)号：WO1997039440A1

公开(公告)日：1997-10-23

申请号：PCT/US1997006459

申请日：1997-04-18

Applicant: STORAGE TECHNOLOGY CORPORATION

Inventor： STORAGE TECHNOLOGY CORPORATION ,  SUNDARAM, Ramesh

IPC: G11B05/147

CPC classification number: G11B5/31 ,  G11B5/29 ,  G11B5/3106 ,  G11B5/313

Abstract: The present invention provides a tape head (30) with reduced pole-tip recession. A recessed substrate (37) and a closure (32) of the tape head are separated by a plurality of layers, which include, for example, a bottom layer (35), a recessed bottom pole (86), a write gap (88), a shared pole (84), a read gap (60), a top pole (82) and a top layer (48). The recessed bottom pole is positioned in the recess of the substrate. By utilizing the recessed substrate and the recessed bottom pole, the thickness of the overcoat layer is reduced, thereby reducing the distance between the substrate and the closure at an air-bearing surface of the recording head. With the present invention, wear is reduced, thereby reducing pole tip recession.

Abstract translation: 本发明提供了具有减小的极尖衰退的带头（30）。 带头的凹陷基板（37）和封闭件（32）由多个层分开，多个层包括例如底层（35），凹陷底极（86），写入间隙（88） ），共享极（84），读取间隙（60），顶极（82）和顶层（48）。 凹陷的底极位于基板的凹槽中。 通过利用凹陷的基板和凹陷的底极，减小了外涂层的厚度，从而减小了记录头的空气轴承表面处的基板和封闭件之间的距离。 通过本发明，减少了磨损，从而减少了极头退缩。

公开(公告)号：EP0894319A1

公开(公告)日：1999-02-03

申请号：EP97922339.0

申请日：1997-04-18

Applicant: STORAGE TECHNOLOGY CORPORATION

Inventor： SUNDARAM, Ramesh

IPC: G11B5

CPC classification number: G11B5/31 ,  G11B5/29 ,  G11B5/3106 ,  G11B5/313

Abstract: The present invention provides a tape head (30) with reduced pole-tip recession. A recessed substrate (37) and a closure (32) of the tape head are separated by a plurality of layers, which include, for example, a bottom layer (35), a recessed bottom pole (86), a write gap (88), a shared pole (84), a read gap (60), a top pole (82) and a top layer (48). The recessed bottom pole is positioned in the recess of the substrate. By utilizing the recessed substrate and the recessed bottom pole, the thickness of the overcoat layer is reduced, thereby reducing the distance between the substrate and the closure at an air-bearing surface of the recording head. With the present invention, wear is reduced, thereby reducing pole tip recession.