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

申请人： STORAGE TECHNOLOGY CORPORATION

发明人： SUNDARAM, Ramesh

IPC分类号： G11B5

CPC分类号： G11B5/31 ,  G11B5/29 ,  G11B5/3106 ,  G11B5/313

摘要： 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.