发明名称 |
SPUTTERING DEVICE FOR FORMATION OF MAGNETIC THIN FILM |
摘要 |
PURPOSE:To enable the uniform magnetic characteristics of a magnetic film by forming the magnetic film of which the film ratio of inclined planes and flat parts is 0.75 or more on a substrate having a plurality of high step parts and flat parts by determining the angle made by the substrate surface with the line connecting an erosion area of a target and the edge of the substrate which is nearest to said area 55 deg. or under. CONSTITUTION:An upper magnetic film 5 is formed on the magnetic core for a thin film magnetic head in which a lower magnetic member 2, a conductive coil 3, and an insulator 4 are arranged on a substrate 1. At the same time, a magnetic film 5 is formed on the substrate on which hundreds of such elements are formed. A magnetron magnet 7 is put under a target 6 and the substrate 1 is arranged oppositely to an erosion area 8 of the target. The angle thetamade by the substrate surface with the line connecting said erosion area 8 and the edge of the substrate 1 which is nearest the area 8 is determined as theta<=55, thereby obtaining the magnetic film 5 whose step coverage b/a is at least 0.75 on the substrate 1 having a plurality of high step parts and flat parts. |
申请公布号 |
JPS62119907(A) |
申请公布日期 |
1987.06.01 |
申请号 |
JP19850258552 |
申请日期 |
1985.11.20 |
申请人 |
HITACHI LTD |
发明人 |
KOZONO YUZO;MITSUOKA KATSUYA;IMAGAWA TAKAO;SATO MITSUO;KUMAGAI AKIRA;SANO MASAAKI;SATO TADASHI;HARA SHINICHI;NARUSHIGE SHINJI;HANAZONO MASANOBU;SETOYAMA HIDETSUGU;ARIMATSU KEIJI;KOBAYASHI TETSUO |
分类号 |
H01F41/14;C23C14/34;C23C14/35;C23C14/36;H01F41/18;H01J37/34 |
主分类号 |
H01F41/14 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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