Head core slider for rigid magnetic disk drive and method of producing the same.

摘要

A head core slider for a rigid magnetic disk drive includes a slider body, a track portion, a yoke portion, and a narrow stepped portion. The slider body has two spaced-apart parallel air bearing portions (24), and the track portion (26) is formed integrally with one of the bearing portions, so as to extend from one end thereof. The track portion (26), has the same height as the bearing portion (24), and a smaller width. The yoke portion (38) is formed integrally with the track portion (26) so as to extend from one end of the track portion remote from the bearing portion, and has a protrusion (28) of the same height as the track portion. The width of the protrusion (28) is smaller than that of the bearing portion (24) and larger than that of the track portion (26). The stepped portion (46) is formed so as to surround at least the track portion and the protrusion of the yoke portion, and has a surface which is spaced apart from top surfaces of the track portion and the protrusion by a distance nearly equal to the height of the portions (24,26,28). The bearing, track and stepped portions and the protrusions are formed by etching the surfaces of two bonded ferrite blocks, through an etching mask pattern corresponding to the desired configuration to be formed.