MAGNETIC HEAD FOR VERTICAL MAGNETIC RECORDING HAVING SHIELD PROVIDED AROUND MAIN MAGNETIC POLE

MAGNETIC HEAD FOR VERTICAL MAGNETIC RECORDING HAVING SHIELD PROVIDED AROUND MAIN MAGNETIC POLE

PROBLEM TO BE SOLVED: To suppress occurrence of magnetic defects in two shields and to easily determine shapes of the two side shields.SOLUTION: The magnetic head includes a main magnetic pole 12 and a shield having an end surface arranged so as to surround the end surface of the main magnetic pole...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: SASAKI YOSHITAKA, SATO KAZUKI, ITO HIROYUKI, HORINAKA TAKEHIRO, YASUDA KAZUMASA
Format: Patent
Sprache:eng
Schlagworte:
GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC
GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS
INFORMATION STORAGE
INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORDCARRIER AND TRANSDUCER
PHYSICS
TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
TECHNICAL SUBJECTS COVERED BY FORMER USPC
TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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Beschreibung
Zusammenfassung:PROBLEM TO BE SOLVED: To suppress occurrence of magnetic defects in two shields and to easily determine shapes of the two side shields.SOLUTION: The magnetic head includes a main magnetic pole 12 and a shield having an end surface arranged so as to surround the end surface of the main magnetic pole 12 on a medium facing surface. The shield includes a lower shield 13A, two side shields 13B and 13C, and an upper shield. The method for manufacturing the magnetic head includes: forming a mold of which shape is determined with photolithography and which is removed on the upper surface of the lower shield 13A; plating the mold without forming a seed layer; forming two side shields 13B and 13C on the upper surface of the lower shield 13A; removing the mold; and sequentially forming a first gap layer 27, the main magnetic pole 12, a second gap layer, and an upper shield.