发明专利
JP2005332897A Magnetic resistance effect element, thin film magnetic head, magnetic head device and manufacturing method of magnetic record reproducing device as well as magnetic resistance effect element
审中-公开
基本信息:
- 专利标题： Magnetic resistance effect element, thin film magnetic head, magnetic head device and manufacturing method of magnetic record reproducing device as well as magnetic resistance effect element
- 专利标题（中）：磁阻效应元件，薄膜磁头，磁头装置以及作为磁阻效应元件的磁记录再生装置的制造方法
- 申请号：JP2004148553 申请日：2004-05-19
- 公开(公告)号：JP2005332897A 公开(公告)日：2005-12-02
- 发明人： TERUNUMA KOICHI , SASAKI TETSUO
- 申请人： Tdk Corp , Tdk株式会社
- 专利权人： Tdk Corp,Tdk株式会社
- 当前专利权人： Tdk Corp,Ｔｄｋ株式会社
- 优先权： JP2004148553 2004-05-19
- 主分类号： G11B5/39
- IPC分类号： G11B5/39 ; H01L43/08 ; H01L43/10 ; H01L43/12
摘要：
PROBLEM TO BE SOLVED: To provide a magnetic resistance effect element or the like which prevents the generation of electromigration at the end of an electrode film in a reed overlay structure.
SOLUTION: The thin film magnetic head 1 is provided with a read overlay type reading element 7. Such a reading element is equipped with a magnetic resistance effect film 41, electrode films 47, 49 and protection films 51, 53, 55. The electrode films are provided so as to supply a sense current to the magnetic resistance effect film. Further, the protection films comprise etching preventing protection films 51, 53 for covering the upper surface of the electrode films, and an electromigration preventing protection film 55 for covering the upper surface of the etching preventing protection films, the side surfaces 47a, 49a of the electrode films and the upper surface of the magnetic resistance effect film.
COPYRIGHT: (C)2006,JPO&NCIPI
摘要（中）：
SOLUTION: The thin film magnetic head 1 is provided with a read overlay type reading element 7. Such a reading element is equipped with a magnetic resistance effect film 41, electrode films 47, 49 and protection films 51, 53, 55. The electrode films are provided so as to supply a sense current to the magnetic resistance effect film. Further, the protection films comprise etching preventing protection films 51, 53 for covering the upper surface of the electrode films, and an electromigration preventing protection film 55 for covering the upper surface of the etching preventing protection films, the side surfaces 47a, 49a of the electrode films and the upper surface of the magnetic resistance effect film.
COPYRIGHT: (C)2006,JPO&NCIPI
要解决的问题：提供一种防止在簧片覆盖结构中在电极膜末端产生电迁移的磁阻效应元件等。
解决方案：薄膜磁头1设置有读取覆盖型读取元件7.这种读取元件配备有磁阻效应膜41，电极膜47,49和保护膜51,53,55。 设置电极膜以便向磁阻效应膜提供感测电流。 此外，保护膜包括用于覆盖电极膜的上表面的防蚀保护膜51,53和用于覆盖防蚀蚀保护膜的上表面的防电镀保护膜55，以及防腐保护膜的侧表面47a，49a 电极膜和磁阻效应膜的上表面。 版权所有（C）2006，JPO＆NCIPI
信息查询:
EspacenetIPC结构图谱:
| G | 物理 |
| --G11 | 信息存储 |
| ----G11B | 基于记录载体和换能器之间的相对运动而实现的信息存储 |
| ------G11B5/00 | 借助于记录载体的激磁或退磁进行记录的；用磁性方法进行重现的；为此所用的记录载体 |
| --------G11B5/012 | .磁盘信息的记录、重现或抹除 |
| ----------G11B5/33 | ..磁通敏感磁头的结构或制造 |
| ------------G11B5/39 | ...使用磁阻装置的 |