Catadioptric lens system with light transmission control means
    53.
    发明授权
    Catadioptric lens system with light transmission control means 失效
    反射折射透镜系统具有光传输控制装置

    公开(公告)号:US4256372A

    公开(公告)日:1981-03-17

    申请号:US947737

    申请日:1978-10-02

    摘要: A catadioptric light system such as a module lens system capable of being mounted on a camera is provided. A plurality of light reflecting and refracting optic members are designed to provide a desired image forming light path through the lens system. Disposed within the lens system is an electrochromic device that is responsive to an applied voltage to provide a predetermined degree of light transmission intensity through the lens system. The electrochromic device can be a thin film mounted on a transparent plate or on a reflective surface. The housing of the lens system can be advantageously designed to contain its own power source.

    摘要翻译: 提供了能够安装在相机上的诸如模块透镜系统的反折射光系统。 多个光反射和折射光学构件被设计成提供通过透镜系统的期望的图像形成光路。 在透镜系统内设置的是电致变色装置,其响应于施加的电压以通过透镜系统提供预定程度的透光强度。 电致变色装置可以是安装在透明板上或反射表面上的薄膜。 可以有利地设计透镜系统的外壳以容纳其自身的电源。

    Sensor shape of a CPP magnetic head for improving the MR ratio
    54.
    发明授权
    Sensor shape of a CPP magnetic head for improving the MR ratio 有权
    用于改善MR比的CPP磁头的传感器形状

    公开(公告)号:US08355224B2

    公开(公告)日:2013-01-15

    申请号:US12011904

    申请日:2008-01-29

    IPC分类号: G11B5/33

    摘要: Embodiments of the present invention help to prevent a head characteristic from being deteriorated by re-deposition or damage which occurs when a sensor film is etched, a track width is narrowed, and the head characteristic is stabilized. According to one embodiment, when it is assumed that the thickness of the sensor film on an air bearing surface is T, and a distance between an end of a medium layer that is interposed between a free layer and a pinned layer which comprise the sensor film and an end of the sensor film lowest portion, a relationship of 1.2×T≦X≦2.5×T is satisfied, and the ends of a pair of magnetic films which are in contact with both sides in the track-width direction through an insulator do not exist in the track central portion from the free layer end. The sensor film is etched while an incident angle of an etching beam is changed over, and when it is assumed that a direction normal to the sensor film surface is the incident angle of 0, etching is conducted under the condition where the incident angle of the etching beam becomes smaller with time.

    摘要翻译: 本发明的实施例有助于通过在传感器膜被蚀刻,轨道宽度变窄并且头部特性稳定时发生的再沉积或损伤来防止头部特性劣化。 根据一个实施例,当假设空气轴承表面上的传感器膜的厚度为T时,介于介于包含传感器膜的自由层和被钉扎层之间的介质层的端部之间的距离 和传感器膜最低部分的一端,满足1.2×T≦̸ X≦̸ 2.5×T的关系,并且通过绝缘体在轨道宽度方向上与两侧接触的一对磁性膜的端部 不存在于自由层末端的轨道中心部分。 在蚀刻光束的入射角变化的同时蚀刻传感器膜,并且当假定与传感器膜表面垂直的方向为入射角为0时,在其入射角 刻蚀光束随时间变小。

    Magnetic heads having a graded domain control film and methods of manufacture thereof
    55.
    发明授权
    Magnetic heads having a graded domain control film and methods of manufacture thereof 有权
    具有梯度域控制膜的磁头及其制造方法

    公开(公告)号:US08284527B2

    公开(公告)日:2012-10-09

    申请号:US12957229

    申请日:2010-11-30

    IPC分类号: G11B5/39

    摘要: A magnetic head, according to one embodiment, includes a sensor film, a sensor cap film provided above the sensor film, a pair of shields including an upper magnetic shield and a lower magnetic shield which serve as electrodes that pass current in a film thickness direction of the sensor film, a track insulating film contacting both sides of the sensor film in the track width direction, a graded domain control film arranged on both sides in the track width direction of the sensor film adjacent the track insulating film, and an element height direction insulating film positioned on an opposite side of the sensor film relative to an air-bearing surface, wherein an edge position of the element height direction insulating film adjacent the sensor film on the air-bearing surface side is substantially the same as an edge position of the sensor cap film in the element height direction.

    摘要翻译: 根据一个实施例的磁头包括传感器膜,设置在传感器膜上方的传感器盖膜,包括上磁屏蔽和下磁屏蔽的一对屏蔽件,其用作使电流在膜厚度方向上通过的电极 传感器膜的传感器膜的两侧接触的轨道绝缘膜,布置在邻近轨道绝缘膜的传感器膜的轨道宽度方向两侧的梯度控制膜和元件高度 相对于空气轴承表面定位在传感器膜的相对侧上的方向绝缘膜,其中与空气轴承表面侧相邻的传感器膜的元件高度方向绝缘膜的边缘位置与边缘位置基本相同 传感器盖膜在元件高度方向上。

    VERTICAL-CURRENT-TYPE REPRODUCING MAGNETIC HEAD AND METHOD OF MANUFACTURING THE SAME
    56.
    发明申请
    VERTICAL-CURRENT-TYPE REPRODUCING MAGNETIC HEAD AND METHOD OF MANUFACTURING THE SAME 有权
    垂直电流型复制磁头及其制造方法

    公开(公告)号:US20100123977A1

    公开(公告)日:2010-05-20

    申请号:US12615222

    申请日:2009-11-09

    IPC分类号: G11B5/33

    摘要: In one embodiment, a vertical-current-type reproducing magnetic head includes a sensor film, an upper shield paired with a lower shield that together flow a current into the sensor film in a thickness direction of the sensor film, and magnetic-domain control magnetic films provided above both sides of the sensor film in a track width direction of the sensor film. The shield is formed via a nonmagnetic adhesion layer including a discontinuous region near the sensor film, and the sensor film contacts the upper shield. In another embodiment, a method includes forming a resist layer, etching a sensor film while using the resist layer as a mask, forming first insulating films, domain-control magnetic films, and nonmagnetic adhesion layers in a stacked manner, lifting-off the resist layer, and forming an upper shield that together with a lower shield flow current into the sensor film in a thickness direction of the sensor film.

    摘要翻译: 在一个实施例中,垂直电流型再现磁头包括传感器膜,与屏蔽层成对的上屏蔽层,其一起沿传感器膜的厚度方向将电流流入传感器膜,以及磁畴控制磁 在传感器膜的轨道宽度方向上设置在传感器膜两侧的膜。 屏蔽是通过包括传感器膜附近的不连续区域的非磁性粘合层形成的,并且传感器膜接触上屏蔽。 在另一个实施例中,一种方法包括形成抗蚀剂层,在使用抗蚀剂层作为掩模的同时蚀刻传感器膜,以堆叠的方式形成第一绝缘膜,域控制磁性膜和非磁性粘合层,提升抗蚀剂 并且在传感器膜的厚度方向上形成与屏蔽流动电流一起下降到传感器膜中的上屏蔽。

    Magnetic recording head with shaped pole
    57.
    发明授权
    Magnetic recording head with shaped pole 失效
    带磁极的磁记录头和制造工艺

    公开(公告)号:US07535675B2

    公开(公告)日:2009-05-19

    申请号:US11046356

    申请日:2005-01-27

    IPC分类号: G11B5/147 G11B5/127

    摘要: Embodiments of the invention provide a thin film magnetic recording head that can reduce the round portion of the track restriction part of the main pole and has excellent track width accuracy, as well as its fabrication method. In one embodiment, the main pole is etched in the following three processes. (1) An ion beam is injected into the substrate at an angle of about 50°±20° while vibrating the substrate horizontally within a range of about ±(30° to 150°) in a reference direction in which the ion beam is oriented from the medium to the air bearing surface. (2) The ion beam is injected into the substrate at an angle of about 60°±20° while vibrating the substrate around a predetermined angle of about 90° to 135° from a direction in which the ion beam is oriented from the medium to the air bearing surface. (3) The ion beam is injected into the substrate at an angle of about 60°±20° while vibrating the substrate horizontally at a predetermined angle within about ±45° around a predetermined angle within about −90° to −135° from a direction in which the ion beam is oriented from the medium to the air bearing surface.

    摘要翻译: 本发明的实施例提供一种薄膜磁记录头,其可以减小主极的轨道限制部分的圆形部分,并且具有优异的轨道宽度精度及其制造方法。 在一个实施例中,主极在以下三个过程中被蚀刻。 (1)离子束以约50°±20°的角度注入基板,同时在离子束取向的基准方向上在约±(30°〜150°)的范围内水平振动基板 从介质到空气轴承表面。 (2)离子束以大约60°±20°的角度注入到基片中,同时使离子束从介质取向的方向围绕约90°至135°的预定角度振动, 空气轴承表面。 (3)将离子束以大约60°±20°的角度注入到基片中,同时以大约±45°的预定角度水平地振动衬底,大约在-90°至-135°的预定角度 离子束从介质定向到空气轴承表面的方向。

    Sensor shape and etching process of CPP magnetic head for reduce property degradation
    58.
    发明申请
    Sensor shape and etching process of CPP magnetic head for reduce property degradation 有权
    CPP磁头的传感器形状和蚀刻工艺,用于降低性能下降

    公开(公告)号:US20090046394A1

    公开(公告)日:2009-02-19

    申请号:US12011904

    申请日:2008-01-29

    IPC分类号: G11B5/33 B44C1/22

    摘要: Embodiments of the present invention help to prevent a head characteristic from being deteriorated by re-deposition or damage which occurs when a sensor film is etched, a track width is narrowed, and the head characteristic is stabilized. According to one embodiment, when it is assumed that the thickness of the sensor film on an air bearing surface is T, and a distance between an end of a medium layer that is interposed between a free layer and a pinned layer which comprise the sensor film and an end of the sensor film lowest portion, a relationship of 1.2×T≦x≦2.5×T is satisfied, and the ends of a pair of magnetic films which are in contact with both sides in the track-width direction through an insulator do not exist in the track central portion from the free layer end. The sensor film is etched while an incident angle of an etching beam is changed over, and when it is assumed that a direction normal to the sensor film surface is the incident angle of 0, etching is conducted under the condition where the incident angle of the etching beam becomes smaller with time.

    摘要翻译: 本发明的实施例有助于通过在传感器膜被蚀刻,轨道宽度变窄并且头部特性稳定时发生的再沉积或损伤来防止头部特性劣化。 根据一个实施例,当假设空气轴承表面上的传感器膜的厚度为T时,介于介于包含传感器膜的自由层和被钉扎层之间的介质层的端部之间的距离 和传感器膜最低部分的端部,满足1.2×T <= x <= 2.5×T的关系,并且通过绝缘体在轨道宽度方向上与两侧接触的一对磁性膜的端部 不存在于自由层末端的轨道中心部分。 在蚀刻光束的入射角变化的同时蚀刻传感器膜,并且当假定与传感器膜表面垂直的方向为入射角为0时,在其入射角 刻蚀光束随时间变小。