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MR HEAD

机译:黑德先生

摘要

PROBLEM TO BE SOLVED: To realize the high frequency characteristic and heat dissipation property of an intermediate shield material by constituting the intermediate shield layer of a multilayer film having the magnetic film of two and above layers, making the magnetic film of an upper magnet pole side in the multilayer to be a high specific resistance film and making the magnetic film of a lower shield side to be a high heat conduction film.;SOLUTION: In this MR head, an intermediate shield is composed of the magnetic film of two layers, a reproduction gap side is composed of a metallic magnetic film 7 whose specific resistance is not more than 25 μΩ and an upper magnetic pole side of a magnetic film 6 whose specific resistance is not less than 80 μΩ. It is desirable that the magnetic film on the upper magnetic pole side in the intermediate shield functions as a lower magnetic pole and the reproduction gap side of the intermediate shield as a shield. The intermediate shield is composed of at least the two layer film and the reproduction gap side is composed of the metallic magnetic film of low specific resistance. Thus, heat dissipation property is good. On the other hand, the upper magnetic pole side is formed of a high specific resistance magnetic film and therefore recording performance at the time of high frequency is also good.;COPYRIGHT: (C)2000,JPO
机译:解决的问题:通过构成具有两层以上的磁性膜的多层膜的中间屏蔽层,使上磁极侧的磁性膜成为中间,从而实现中间屏蔽材料的高频特性和散热性。在多层结构中,将其制成高电阻率膜,并使下部屏蔽层的磁性膜变为高导热膜。;解决方案:在此MR磁头中,中间屏蔽层由两层磁性膜组成,再生间隙侧由比电阻为25μΩ以下的金属磁性膜7和比电阻为80μΩ以上的磁性膜6的上磁极侧构成。期望中间屏蔽中的上磁极侧的磁性膜用作下磁极,并且中间屏蔽的再现间隙侧用作屏蔽。中间屏蔽至少由两层膜组成,并且再现间隙侧由低电阻率的金属磁性膜组成。因此,散热性良好。另一方面,上磁极侧由高电阻率的磁性膜形成,因此在高频时的记录性能也很好。;版权所有:(C)2000,JPO

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