Perpendicular magnetic recording head having a magnetic layer overhanging a trailing side of a main pole and method of manufacture thereof

A recording head having a narrowed track has a high recording magnetic field strength and a high recording magnetic field gradient has certain problems which may be difficult to overcome. In one embodiment, a magnetic film, which overhangs from a track width, is provided on a trailing side of a. reg...

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Bibliographische Detailangaben
Hauptverfasser: Nunokawa, Isao, Sugiyama, Mikito, Kusukawa, Kikuo, Etoh, Kimitoshi
Format: Patent
Sprache:eng
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Beschreibung
Zusammenfassung:A recording head having a narrowed track has a high recording magnetic field strength and a high recording magnetic field gradient has certain problems which may be difficult to overcome. In one embodiment, a magnetic film, which overhangs from a track width, is provided on a trailing side of a. region retracted from an ABS of a main pole facing a recording medium. Thereby, a magnetic field strength on the trailing side is increased so that a difference in distribution of magnetic field strength defined by a geometrical bevel angle given to the main pole is increased. Consequently, writing performance of the main pole is improved while forming a large magnetic clearance angle with respect to an adjacent track and suppresses writing into an adjacent track when skew occurs. Other systems and methods are also disclosed regarding a head with a high recording magnetic field using an overhanging magnetic film.