发明名称 |
Method of manufacturing a perpendicular magnetic recording head |
摘要 |
A main magnetic pole layer is formed on an insulating layer flattened into a high-flatness surface, and a yoke layer having a large film thickness is formed under the main magnetic pole layer independently of the main magnetic pole. The main magnetic pole layer has a front end surface formed in a shape with a width size gradually increasing in a direction of track width as the front end surface departs farther away from an auxiliary magnetic pole layer. A perpendicular magnetic recording head can be provided which can suppress the occurrence of fringing in a recording pattern, and can form the main magnetic pole layer with high pattern accuracy, and can satisfactorily introduce a recording magnetic field to a fore end of the main magnetic pole layer.
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申请公布号 |
US7181829(B2) |
申请公布日期 |
2007.02.27 |
申请号 |
US20050222441 |
申请日期 |
2005.09.08 |
申请人 |
ALPS ELECTRIC CO., LTD. |
发明人 |
TAKAHASHI TORU;YAZAWA HISAYUKI;GOCHOU HIDEKI;KOBAYASHI KIYOSHI;YAMADA MINORU;SATO KIYOSHI;WATANABE TOSHINORI |
分类号 |
G11B5/127;G11B5/31;G11B5/187;H04R31/00 |
主分类号 |
G11B5/127 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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