| 摘要 |
A recording head has a bottom pole layer and a top pole layer that include pole portions opposed to each other, a recording gap layer being placed between the pole portions. The recording head further has a thin-film coil. The top pole layer includes first and second pole portion layers and a yoke portion layer. An insulating layer for defining a throat height is placed in a portion between the recording gap layer and a part of a surface of the second pole portion layer that does not touch a surface of the first pole portion layer. A coil encasing portion is formed such that this portion has a depth that extends from the level of the recording gap layer toward the bottom pole layer and toward the top pole layer. The thin-film coil is placed in the coil encasing portion.
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