公开(公告)号：US5057959A

公开(公告)日：1991-10-15

申请号：US499653

申请日：1990-03-27

申请人： Shinichi Inoue ,  Kenji Makino ,  Tooru Matuda ,  Fujihiro Itoh ,  Yutaka Kusano

发明人： Shinichi Inoue ,  Kenji Makino ,  Tooru Matuda ,  Fujihiro Itoh ,  Yutaka Kusano

IPC分类号： G11B5/31

CPC分类号： G11B5/3106 ,  Y10S428/90

摘要： A thin-film magnetic head having a magnetic core formed by a thin-film deposition technique on a substrate formed of crystallized glass which comprises of a mass of microcrystalline aggregation particles having an average particle size of 1 to 10 .mu.m and each comprising of an aggregation of microcrystalline grains having an average grain size of about 0.5 .mu.m or smaller. This structure enables an improvement in the abrasion resistance of the head and, hence, an improvement in the recording/reproduction characteristics while maintaining the desired workability of the substrate, thereby improving the head in producibility and reliability.

摘要翻译： 一种薄膜磁头，其具有通过薄膜沉积技术在由结晶玻璃形成的基板上形成的磁芯，所述基板由平均粒径为1〜10μm的微粒聚集粒子群组成， 平均粒径为0.5μm以下的微晶粒的聚集。 该结构能够提高头部的耐磨性，并且因此提高记录/再现特性，同时保持基板的期望的可加工性，从而提高了生产率和可靠性的头部。