| 摘要 |
PURPOSE:To realize track width which has no track shift and also has high accuracy by making a magnetic thin film thicker than the track width with respect to a C core of a pair of core blocks, and constituting the head track width of thickness of the magnetic thin film of the other I core. CONSTITUTION:Thickness T1 of a magnetic thin film 2 and thickness T2 of a magnetic thin film 2' are different from each other by a value of T1-T2. Track width TW of this head becomes a part which the magnetic thin film 2 and 2' are matched through a non-magnetic thin film 14 for executing a gap control, and namely, becomes equal to T2. In this way, by changing the thickness of the magnetic thin film of each core block, the track width TW of the head is controlled by the core block whose thickness is thin. Therefore, even if a shift is generated in each core block in the bonding process, it will do if the magnetic thin film 2' for controlling the track width is matched within thickness T1 of the magnetic thin film 2, and the allowable range of its shift becomes T1-T2. |
