| 摘要 |
PURPOSE:To manufacture a head core having the specified truck width excellent in high frequency characteristic by weighing segment core material consisting of iron, aluminium, and arsenic for the specified ratio, melting it in vacuum during an electron beam vapor depositing process, and forming a film on a board. CONSTITUTION:A heater 2 to heat and hold a vapor depositing substrate at an evaporating temperature and non-magnetic board 3 on which a vapor deposited film are placed in the upper corner of the vacuum bell jar 1. The vapor depositing source position of lower side is an electron beam generating filament 5 and crucible 7 installed in the direction of radiation of the electron beam 6 generated in the filament. In the crucible 7 is a tablet 8 consisting iron 9, aluminium 10, and arsenic 11 which are vapor depositing source material. When the electron beam 6 is radiated to the tablet 8, the elements in that part are spattered for steam current, adhered to the non-magnetic board 3 through a vapor depositing current control shutter 4, forming a vapor deposited film. |
