MAGNETIC DISK, A FABRICATION METHOD THEREOF AND A HARD DISK DRIVE APPLYING MAGNETIC DISK THERETO, CONCERNED WITH MAGNETICALLY SEPARATING MAGNETIC SUBSTANCE GRAINS AND REDUCING MAGNETIC NOISE

MAGNETIC DISK, A FABRICATION METHOD THEREOF AND A HARD DISK DRIVE APPLYING MAGNETIC DISK THERETO, CONCERNED WITH MAGNETICALLY SEPARATING MAGNETIC SUBSTANCE GRAINS AND REDUCING MAGNETIC NOISE

PURPOSE: A magnetic disk, a fabrication method thereof and a hard disk drive applying magnetic disk thereto are provided to dispose a spacer chromium layer between a stabilizing magnetic layer and an upper magnetic layer, to spread chromium inside the upper magnetic layer. CONSTITUTION: A magnetic d...

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Bibliographische Detailangaben
Hauptverfasser: HONG, SU YEOL, SHIN, GYEONG HO, LEE, HYUNG JAI, LEE, TAEK DONG, OH, SE CHUNG
Format: Patent
Sprache:eng ; kor
Schlagworte:
INFORMATION STORAGE
INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORDCARRIER AND TRANSDUCER
PHYSICS
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Zusammenfassung:PURPOSE: A magnetic disk, a fabrication method thereof and a hard disk drive applying magnetic disk thereto are provided to dispose a spacer chromium layer between a stabilizing magnetic layer and an upper magnetic layer, to spread chromium inside the upper magnetic layer. CONSTITUTION: A magnetic disk(12) includes a stabilizing magnetic layer(50) located on a substrate(52). A lower layer(54) is inserted between the stabilizing magnetic layer(50) and the substrate(52) to improve an adhesion of a stabilizing material. The substrate(52) is made of an aluminum material. The stabilizing magnetic layer(50) is covered with a spacer chromium layer(56). The chromium layer(56) is covered with an upper magnetic layer(58). Chromium is spread between magnetic material grains within the upper magnetic layer(58).