Abstract
An MIG mini-composite head for rigid disk drives which is composed of Fe-Al-Si thin film deposited on ferrite has been developed. The characteristics of the MIG head were studied and its magnetic field was calculated by FEM and compared with the ferrite head. Relation between the MIG head characteristics and the magnetic characteristics of Fe-Al-Si thin film was also studied. The magnetic field distribution at the trailing edge of the MIG head was found to be sharper than that of the ferrite head, indicating that the MIG head has high performance as a high density recording head. Output voltage of the MIG head with 1μm thick Fe-Al-Si film was low. The reason for low output was the low magnetic characteristics of the magnetic film.
