THIN-FILM MAGNETIC HEAD AND ITS MANUFACTURE

PROBLEM TO BE SOLVED: To provide a thin-film magnetic head, in which irregularities in the frame width of an upper-layer pole is excluded, and to provide a manufacturing method. SOLUTION: In this thin-film magnetic head 40, an upper-layer pole 46 is provided between a back yoke 44, which is formed o...

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Bibliographische Detailangaben
Hauptverfasser:	SHIBAYAMA TETSUYA, TERUI SATOSHI
Format:	Patent
Sprache:	eng
Schlagworte:	INFORMATION STORAGE INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORDCARRIER AND TRANSDUCER PHYSICS
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide a thin-film magnetic head, in which irregularities in the frame width of an upper-layer pole is excluded, and to provide a manufacturing method. SOLUTION: In this thin-film magnetic head 40, an upper-layer pole 46 is provided between a back yoke 44, which is formed on a conductor coil and a gap. When a resist frame 53, which is used to form the upper-layer pole 46, is formed by a photolithographic method, in such a way that the time which elapses until a photoresist is exposed and developed after it is coated, is maintained so as to be constant. Thereby, this thin-film magnetic head in which irregularities in the frame width of the upper-layer pole 46 are excluded and whose performance quality is superior can be obtained, and its manufacturing method can be obtained.