发明名称 THIN-FILM MAGNETIC HEAD AND ITS MANUFACTURE
摘要 PROBLEM TO BE SOLVED: To secure sufficient writing capability and to facilitate the manufacture by preventing magnetic saturation before magnetic flux reaches the tip of a magnetic pole part, even when the magnetic pole width is made small. SOLUTION: The upper magnetic layer of an induction type magnetic transducing element has an upper magnetic pole part layer 12, a 1st yoke part layer 15, and a 2nd yoke part layer 20. The width of the end part of the upper magnetic pole part layer 12 on the air-bearing surface side, i.e., magnetic pole width is less than the width of the upper magnetic pole part layer 12 at the air-bearing-surface side end part of the coupling part of the upper magnetic pole part layer 12 and 1st yoke part layer 15. Further, the width of the upper magnetic pole part layer 12 at the air-bearing-surface side end part of the coupling part of the upper magnetic pole part layer 12 and 1st yoke part layer 15 is larger than the width of the 1st yoke part layer 15 at the air-bearing- surface side end part of the coupling part between the upper magnetic pole part layer 12 and 1st yoke part layer 15.
申请公布号 JP2000251219(A) 申请公布日期 2000.09.14
申请号 JP19990048985 申请日期 1999.02.25
申请人 TDK CORP 发明人 NOMURA IZUMI;ROPPONGI TETSUYA
分类号 G11B5/31;G11B5/39;(IPC1-7):G11B5/31 主分类号 G11B5/31
代理机构 代理人
主权项
地址