| 摘要 |
PURPOSE:To reduce the external effects such as the change of temperature and humidty, the secular change, etc. and at the same time to form the head space with high accuracy, by forming plural main magnetic poles and auxilary poles on a single substrate. CONSTITUTION:Plural main magnetic poles 6 and auxiliary poles 7 are formed opposite to each other on a single substrate 8 of a silicon wafer, a glass substrate, etc. Then the current is flowed to a coil 10 to generate the magnetic field from the pole 7, and the short circuit is given to a coil 9 of the pole 6 excepting the poles 6 to which the magnetic recording is required. Thus the magnetic field is concentrated to the poles 6 having no short circuit to carry out the magnetic recording to a vertical magnetizing medium 4. The poles 6 having short-circuited coils 9 increase their magnetic resistance by the magnetic reaction function of the coil 9. As a result, the magnetic field is concentrated to the coils 9 having no short circuit. Thus the magnetized recording is possible on an optional track the recording medium 4. |
