Patent ID: 6493182
Filing Date: 2002-12-10
Classification: G11B

Abstract:
A magnetic head comprising:a slider having an air bearing surface, said air bearing surface including a protective film and a slider base body surface, said protective film being provided intermittently so as to form a pattern of shapes; and fist and second electromagnetic transducers provided adjacent to said slider, said first and second electromagnetic transducers each having an end for performing electromagnetic conversion located adjacent to said air bearing surface of said slider so as to be covered by and in contact with said protective film, said protective film being a single layer laminated onto a part of said slider base body surface, said at least one second electromagnetic transducer including a magnetoresistive element, said first electromagnetic transducer including first and second magnetic films having first and second pole tips, respectively, on first ends and first and second yokes, respectively, on second ends, said first and second yokes of said first and second magnetic films, respectively, being linked to each other at a back gap portion of said first electromagnetic transducer, said back gap portion being located opposite of said first and second pole tips of said first and second magnetic films, respectively, of said first electromagnetic transducer at a predetermined distance from said first and second pole tips; and adhesion prevention means for preventing adhesion between said magnetic head and a magnetic recording medium over which said magnetic head flies while maintaining a minute distance from said magnetic recording medium as said magnetic recording medium rotates, wherein when S0 represents an area of said air bearing surface and S1 represents an area of said protective film, an equation 0.05&lE;(SO-S1)/S0&lE;0.6 is satisfied so that a force with which said magnetic head adheres to said magnetic recording medium can be reduced, said force being controlled by adjusting a size of said area of said protective fin by patterning said protective film so as to form said pattern of shapes.