发明名称 Switch stalk device
摘要 A thin film magnetic head includes a recording and playback element, a lead conductor layer for feeding a power to the recording and playback element, an electrically conductive bump for conductively connecting the lead conductor layer to an electrode pad for external connection, and an insulating protective layer filling between the recording and playback element and the electrically conductive bump. A thermal deformation-preventing layer composed of a material having a thermal expansion coefficient smaller than that of the insulating protective layer is disposed in the insulating protective layer in such a way as to locate between a medium-facing surface and the electrically conductive bump without being exposed at the medium-facing surface. In the resulting thin film magnetic head, protrusion of the recording and playback element toward the recording medium side can be prevented without changing the configuration of the recording and playback element nor the forming material.
申请公布号 US7402768(B2) 申请公布日期 2008.07.22
申请号 US20070854650 申请日期 2007.09.13
申请人 ALPS ELECTRIC CO., LTD 发明人 SUGINO NAOKI;SUTO HIROKI
分类号 H01H9/00 主分类号 H01H9/00
代理机构 代理人
主权项
地址