| 摘要 |
PROBLEM TO BE SOLVED: To determine a throat height correctly, to suppress the protrusion of an edge on a medium facing surface of a shield due to heat produced by a coil, and to suppress the occurrence of a wide area adjacent track erasure. SOLUTION: The shield 13 has a first layer 13A1, a second layer 13A2, a third layer 13B, a first connecting section 13C and a second connecting section 13D. The first layer 13A1 has a first surface that is arranged on the front side in a travelling direction of a recording medium with respect to an edge of a magnetic pole layer 12 on the medium facing surface, a second surface that faces the magnetic pole layer 12, and a third surface that is on the opposite side of the second surface. The second layer 13A2 is in contact with the third surface. The third layer 13B is arranged so that the magnetic pole layer 12 is sandwiched by the first layer 13A1 and the third layer 13B. The first connecting section 13C connects the first layer 13A1 and the third layer 13B without contact with the magnetic pole layer 12. The second connecting section 13D connects the magnetic pole layer 12 and the third layer 13B at the position farther from the medium facing surface than the first connecting section 13C. COPYRIGHT: (C)2008,JPO&INPIT |
