Thin film magnetic head

A magnetic material having a low coefficient of thermal expansion of 11.5x10-6/K or less is used for forming at least one of a lower shield or an upper shield. A laminated film comprising a layer of the magnetic material having a low coefficient of thermal expansion of 11.5x10-6/K or less, and an 80...

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Bibliographische Detailangaben
Hauptverfasser:	OHTOMO SHIGEKAZU, FUKUI HIROSHI, MARUYAMA YOJI, YONEKAWA SUNAO, IWAKURA TADAYUKI
Format:	Patent
Sprache:	eng
Schlagworte:	INFORMATION STORAGE INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORDCARRIER AND TRANSDUCER PHYSICS
Online-Zugang:	Volltext bestellen
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Beschreibung
Zusammenfassung:	A magnetic material having a low coefficient of thermal expansion of 11.5x10-6/K or less is used for forming at least one of a lower shield or an upper shield. A laminated film comprising a layer of the magnetic material having a low coefficient of thermal expansion of 11.5x10-6/K or less, and an 80 wt % NiFe alloy layer, is used for forming at least one of the lower shield and the upper shield. Thus, the thin film magnetic head having reduced after-record noise and reduced thermal protrusion can be obtained.