| 摘要 |
PURPOSE:To form a thin magnetic head with excellent head performance and mass-productivity by forming a couple of front cores sectioned to the right and left to a nonmagnetic base, forming a rear code while bridging over the front core and patterning a thin film coil to surround a bonded part of both cores so as to eliminate drilling processing. CONSTITUTION:A magnetic thin film is coated by sputtering on the surface of the nonmagnetic base 1 so as to form front cores 3a, 3b. Then the part of gap depth Gd of the front core is avoided, the upper face of the front cores 3a, 3b is bridged over at both legs parted from the sliding face 6 in opposite direction and a rear core 3c made of a magnetic thin film of ''Sendust'' member is formed by coating it by sputtering. The drilling processing to the base or the like which has been indispensable in conventional way is made unnecessary, an operating gap 4 is formed between the front cores 3a and 3b formed on the same plane on the base and the core cross section is enlarged larger than the front gap area, then the thin film coil system with excellent head performance and suitable mass-productivity is attained. |
