发明名称 Thin film magnetic head having partial insulating layer formed on bottom pole layer through gap layer and method of manufacturing the same
摘要 A thin film magnetic head wherein a partial insulating layer is formed on a bottom pole layer with a gap layer provided therebetween, the gap depth Gd being regulated by the distance from a surface facing a recording medium to the partial insulating layer. A magnetic flux partially leaks from a tip region of an upper core layer to the bottom pole layer through the partial insulating layer to effectively suppress magnetic saturation of the tip region, thereby improving the NLTS characteristic and PW 50 characteristic, and suppressing the occurrence of side fringing.
申请公布号 US6954333(B2) 申请公布日期 2005.10.11
申请号 US20030688762 申请日期 2003.10.17
申请人 ALPS ELECTRIC CO., LTD. 发明人 MORITA SUMIHITO;OKI NARUAKI;WATANABE TOSHINORI;SHINOZAKI HIROKO
分类号 G11B5/09;G11B5/31;G11B5/39;(IPC1-7):G11B5/127 主分类号 G11B5/09
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