Thermally-assisted magnetic recording head having a waveguide and a return path section
    104.
    发明授权
    Thermally-assisted magnetic recording head having a waveguide and a return path section 有权
    具有波导和返回路径部分的热辅助磁记录头

    公开(公告)号:US08498183B1

    公开(公告)日:2013-07-30

    申请号:US13660479

    申请日:2012-10-25

    IPC分类号: G11B11/00

    摘要: A thermally-assisted magnetic recording head includes a coil, a main pole, a return path section, a waveguide, and a plasmon generator. The waveguide includes a core and a cladding. The return path section includes: first and second columnar portions located on opposite sides of the core in the track width direction; a coupling portion coupling the first and second columnar portions to each other; and a third columnar portion connected to the coupling portion. The third columnar portion is smaller than the coupling portion in width in the track width direction. The coil includes a winding portion wound around the third columnar portion.

    摘要翻译: 热辅助磁记录头包括线圈,主极,返回路径部分,波导和等离子体发生器。 波导包括芯和包层。 返回路径部分包括:在轨道宽度方向上位于芯的相对侧上的第一和第二柱状部分; 将所述第一和第二柱状部分彼此连接的联接部分; 以及连接到联接部分的第三柱状部分。 第三柱状部比轨道宽度方向上的宽度方向的连结部小。 线圈包括卷绕在第三柱状部分上的缠绕部分。

    Heat-assisted magnetic recording head with laser diode fixed to slider
    106.
    发明授权
    Heat-assisted magnetic recording head with laser diode fixed to slider 有权
    带激光二极管的热辅助磁记录头固定在滑块上

    公开(公告)号:US08406089B2

    公开(公告)日:2013-03-26

    申请号:US12585150

    申请日:2009-09-04

    IPC分类号: G11B11/00

    摘要: A heat-assisted magnetic recording head includes a slider, an edge-emitting laser diode fixed to the slider, and an external mirror provided outside the slider. The slider includes a magnetic pole, a waveguide, and a near-field light generating element. The laser diode includes: an emitting end face that lies at an end in a direction parallel to the plane of an active layer and includes a laser-light emission part; and a mounting surface that lies at an end in a direction perpendicular to the plane of the active layer and faces the slider. The external mirror includes: a first reference surface that is parallel to the emitting end face and faces the emitting end face; a second reference surface that is parallel to the mounting surface and faces toward the same direction as the mounting surface does; and a reflecting surface that connects the first and second reference surfaces to each other and reflects the laser light emitted from the emission part toward the waveguide.

    摘要翻译: 热辅助磁记录头包括滑块,固定到滑块的边缘发射激光二极管和设置在滑块外部的外反射镜。 滑块包括磁极,波导和近场光产生元件。 激光二极管包括:发射端面,其位于与有源层的平面平行的方向上的端部,并且包括激光发射部分; 以及安装表面,其位于垂直于有源层的平面的方向上的端部并且面向滑块。 外部反射镜包括:平行于发射端面并面对发射端面的第一参考表面; 第二参考表面,其平行于安装表面并面向与安装表面相同的方向; 以及将第一和第二参考表面彼此连接并将从发射部分发射的激光反射到波导的反射表面。

    Heat-assisted magnetic recording head with laser diode fixed to slider
    107.
    发明授权
    Heat-assisted magnetic recording head with laser diode fixed to slider 有权
    带激光二极管的热辅助磁记录头固定在滑块上

    公开(公告)号:US08395971B2

    公开(公告)日:2013-03-12

    申请号:US12458546

    申请日:2009-07-15

    IPC分类号: G11B11/00

    摘要: A heat-assisted magnetic recording head includes a slider, an edge-emitting laser diode fixed to the slider, and an external mirror provided outside the slider. The slider includes a magnetic pole, a waveguide, a near-field light generating element, and a substrate. The substrate has a top surface facing toward the magnetic pole, the near-field light generating element and the waveguide. The slider has a top surface that lies above the top surface of the substrate, at an end of the slider farther from the top surface of the substrate. The laser diode includes: an active layer; an emitting end face that lies at an end in a direction parallel to the plane of the active layer and includes an emission part for emitting laser light; and a bottom surface that lies at an end in a direction perpendicular to the plane of the active layer. The laser diode is arranged so that the bottom surface faces the top surface of the slider. The external mirror reflects the laser light emitted from the emission part toward the waveguide.

    摘要翻译: 热辅助磁记录头包括滑块,固定到滑块的边缘发射激光二极管和设置在滑块外部的外反射镜。 滑块包括磁极,波导,近场光产生元件和基板。 基板具有面向磁极的顶表面,近场光产生元件和波导。 滑块具有位于基板顶表面上方的顶表面,在滑块的距基板顶表面更远的一端。 激光二极管包括:有源层; 位于与有源层的平面平行的方向上的端部的发射端面,并且包括用于发射激光的发射部分; 以及位于与有源层的平面垂直的方向上的端部的底表面。 激光二极管被布置成使得底表面面向滑块的顶表面。 外部反射镜将从发射部分发射的激光朝向波导反射。

    Method of manufacturing near-field light generating element and method of manufacturing heat-assisted magnetic recording head
    109.
    发明授权
    Method of manufacturing near-field light generating element and method of manufacturing heat-assisted magnetic recording head 有权
    制造近场光产生元件的方法和制造热辅助磁记录头的方法

    公开(公告)号:US08366948B2

    公开(公告)日:2013-02-05

    申请号:US12714998

    申请日:2010-03-01

    IPC分类号: B44C1/22 B29D11/00

    摘要: A near-field light generating element has an outer surface including first and second inclined surfaces and an edge part that connects the first and second inclined surfaces to each other. In a method of manufacturing the near-field light generating element, a polishing stopper layer is initially formed on a metal layer, and the polishing stopper layer and the metal layer are etched so that the metal layer is provided with the first inclined surface. Next, a coating layer is formed to cover the metal layer and the polishing stopper layer. The coating layer is made of a non-metallic inorganic material that has an etching rate lower than that of the metal layer in a second etching step to be performed later. Next, the coating layer is polished until the polishing stopper layer is exposed. Next, the second etching step is performed to etch the polishing stopper layer and the metal layer using the coating layer as the etching mask. This provides the metal layer with the second inclined surface and the edge part, and thereby makes the metal layer into the near-field light generating element.

    摘要翻译: 近场光产生元件具有包括第一和第二倾斜表面的外表面和将第一和第二倾斜表面彼此连接的边缘部分。 在制造近场光产生元件的方法中,最初在金属层上形成抛光阻挡层,并且蚀刻抛光阻挡层和金属层,使得金属层设置有第一倾斜表面。 接下来,形成涂覆层以覆盖金属层和抛光阻挡层。 在稍后执行的第二蚀刻步骤中,涂层由非金属无机材料制成,其蚀刻速率低于金属层的蚀刻速率。 接下来,抛光涂层直到抛光停止层露出。 接下来,进行第二蚀刻步骤,使用涂层作为蚀刻掩模来蚀刻抛光停止层和金属层。 由此,使金属层具有第二倾斜面和边缘部,由此使金属层成为近场光产生元件。

    Magnetic head for perpendicular magnetic recording having a return path section
    110.
    发明授权
    Magnetic head for perpendicular magnetic recording having a return path section 有权
    具有返回路径部分的垂直磁记录用磁头

    公开(公告)号:US08345381B1

    公开(公告)日:2013-01-01

    申请号:US13456914

    申请日:2012-04-26

    IPC分类号: G11B5/17 G11B5/147

    摘要: A magnetic head includes a coil, a main pole, a shield, a return path section, and an accommodation part that are disposed above the top surface of a substrate. The accommodation part accommodates at least part of the return path section. The return path section lies between the main pole and the top surface of the substrate, and connects the shield and part of the main pole away from a medium facing surface to each other so that a space through which part of the coil passes is defined. The accommodation part includes an interposer interposed between the return path section and the medium facing surface. The interposer has an inclined surface facing toward the return path section. The return path section includes an inclined portion located between part of the coil and the inclined surface and extending along the inclined surface.

    摘要翻译: 磁头包括设置在基板的顶表面上方的线圈,主极,屏蔽件,返回路径部分和容纳部分。 容纳部分容纳返回路径部分的至少一部分。 返回路径部分位于基板的主极和顶表面之间,并且将屏蔽和主极的一部分远离介质相对表面彼此连接,从而限定线圈通过的空间。 容纳部分包括插入在返回路径部分和介质面向表面之间的插入器。 插入器具有朝向返回路径部分的倾斜表面。 返回路径部分包括位于线圈的一部分和倾斜表面之间并沿着倾斜表面延伸的倾斜部分。