| 摘要 |
PROBLEM TO BE SOLVED: To provide a magnetic head generating sufficient negative pressure without causing a crash caused by stuck dust since the dust doesn't stick to its negative pressure groove related to a negative pressure system magnetic head used for a magnetic disk, etc. SOLUTION: An angleθbetween a wall surface 3d' cohering the negative pressure groove bottom surface 3c of the negative pressure system magnetic head with a positive pressure generation surface 3b and the negative pressure groove bottom surface 3c is processed smaller than 30 deg.. Since for generating sufficient negative pressure, since the necessity that the angle of the wall surface 3d' is made 10 deg. or above exists, the angleθis processed so as to become within the range of 10 deg.-30 deg., or the wall surface constituted of plural surfaces so as to become a small cross angle in a part being in contact with the bottom surface 3c of the wall surface 3d', and become a large cross angle in the part being in contact with the positive pressure generation surface 3b is given.
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