Perpendicular magnetic write head having a magnetic write pole with a concave trailing edge
    21.
    发明申请
    Perpendicular magnetic write head having a magnetic write pole with a concave trailing edge 有权
    具有磁写入磁极的垂直磁性写头具有凹形后缘

    公开(公告)号:US20070258167A1

    公开(公告)日:2007-11-08

    申请号:US11411556

    申请日:2006-04-25

    Abstract: A magnetic write head for perpendicular magnetic recording having a write pole with a concave trailing edge. The magnetic write pole can have a trapezoidal shape with first and second laterally opposed sides that are further apart at the trailing edge than at the leading edge. The write head may or may not include a magnetic trailing shield, and if a trailing shield is included it is separated from the trailing edge by a non-magnetic write gap layer. The concave trailing edge improves magnetic performance such as by improving the transition curvature. A method for constructing the write head includes forming a magnetic write pole by forming a mask structure over a deposited write pole material, the mask structure having an alumina hard mask and an image transfer layer such as DURAMIDE®. An alumina fill layer is then deposited and a chemical mechanical polish is performed to open up the image transfer layer. A reactive on etch is performed to remove the image transfer layer and a reactive ion mill or reactive ion etch is performed to remove the alumina hard mask and form a concave surface on the write pole.

    Abstract translation: 用于垂直磁记录的磁写头,具有带有凹后缘的写极。 磁性写入极可以具有梯形形状,其中第一和第二横向相对侧在后缘处比在前缘处更远地分开。 写头可以包括或可以不包括磁性后屏蔽,并且如果包括后屏蔽,则其通过非磁性写间隙层与后缘分离。 凹形后边缘提高磁性能,例如通过改善转变曲率。 构成写入头的方法包括通过在沉积的写入极材料上形成掩模结构来形成磁性写入极,掩模结构具有氧化铝硬掩模和诸如DURAMIDE的图像转移层。 然后沉积氧化铝填充层,并执行化学机械抛光以打开图像转印层。 执行反应性蚀刻以去除图像转印层,并且执行反应性离子磨或反应离子蚀刻以除去氧化铝硬掩模并在写入极上形成凹面。

    Apparatus and method for retroactively installing sensors on marine elements
    23.
    发明申请
    Apparatus and method for retroactively installing sensors on marine elements 失效
    在海洋元件上追溯式安装传感器的装置和方法

    公开(公告)号:US20060115335A1

    公开(公告)日:2006-06-01

    申请号:US11265889

    申请日:2005-11-03

    CPC classification number: E21B17/01 E21B47/0001 E21B47/0006 E21B47/01

    Abstract: Sensors, including fiber optic sensors and their umbilicals, are mounted on support structures designed to be retro-fitted to in-place structures, including subsea structures. The sensor support structures are designed to monitor structure conditions, including strain, temperature, and in the instance of pipelines, the existence of production slugs. Moreover the support structures are designed for installation in harsh environments, such as deep water conditions using remotely operated vehicles.

    Abstract translation: 包括光纤传感器及其脐带在内的传感器安装在支撑结构上,该结构被设计成与现有结构(包括海底结构)相适应。 传感器支撑结构设计用于监测结构条件,包括应变,温度,并且在管道的情况下,存在生产s。。 此外,支撑结构设计用于安装在恶劣环境中,例如使用遥控车辆的深水条件。

    Apparatus for inerting the headspace of a container
    25.
    发明申请
    Apparatus for inerting the headspace of a container 审中-公开
    用于减少容器顶部空间的装置

    公开(公告)号:US20060000518A1

    公开(公告)日:2006-01-05

    申请号:US11158182

    申请日:2005-09-07

    CPC classification number: B65B31/041 B67C3/222

    Abstract: Methods and apparatus for supplying an inert compound into the head space of a container. The apparatus has a delivery path which is made up of an inlet which receives a mixture of gaseous phase and solid phase inert compound, an outlet and a tortuous section. The tortuous section is located between the inlet and the outlet, and is situated so as to reduce the velocity of the solid phase inert compound as it passes through. The inert compound can then be delivered into the head space of a container at a lower velocity which increases the efficiency of the inert gas in displacing any air present.

    Abstract translation: 将惰性化合物供应到容器的顶部空间中的方法和装置。 该装置具有由接收气相和固相惰性化合物的混合物,出口和曲折部分的入口组成的输送路径。 弯曲部分位于入口和出口之间,并且被定位成在固相惰性化合物通过时降低其速度。 然后惰性化合物可以以较低的速度输送到容器的顶部空间中,这提高了惰性气体排出存在的任何空气的效率。

    Damascene method for forming write coils of magnetic heads
    26.
    发明申请
    Damascene method for forming write coils of magnetic heads 有权
    用于形成磁头写入线圈的镶嵌方法

    公开(公告)号:US20050125990A1

    公开(公告)日:2005-06-16

    申请号:US10735112

    申请日:2003-12-12

    Abstract: An improved damascene method of forming a write coil of a magnetic head includes forming a hard mask layer over an insulator layer; forming a photoresist layer over the hard mask layer; performing an image patterning process to produce a write coil pattern in the photoresist layer; etching to remove portions of the hard mask layer in accordance with the write coil pattern; etching to remove portions of the insulator layer in accordance with the write coil pattern; etching to remove the remaining portion of the etched hard mask layer; electroplating a material comprising copper (Cu) within the etched portion of the insulator material; and performing a chemical-mechanical polishing (CMP) process over the resulting structure. By removing the remainder of the hard mask material before the CMP, the quality of the CMP is improved. Although any suitable hard mask material may be utilized, if the insulator layer is a hard-baked resist then Ta2O5 having a relatively high selectivity, low brittleness, and improved adhesion is preferred as the hard mask material.

    Abstract translation: 形成磁头的写入线圈的改进的镶嵌方法包括在绝缘体层上形成硬掩模层; 在所述硬掩模层上形成光致抗蚀剂层; 执行图像构图处理以在光致抗蚀剂层中产生写入线圈图案; 蚀刻以根据写入线圈图案去除硬掩模层的部分; 蚀刻以根据写入线圈图案去除绝缘体层的部分; 蚀刻以去除蚀刻的硬掩模层的剩余部分; 在绝缘体材料的蚀刻部分内电镀包含铜(Cu)的材料; 并对结果进行化学机械抛光(CMP)处理。 通过在CMP之前除去硬掩模材料的其余部分,改善了CMP的质量。 尽管可以使用任何合适的硬掩模材料,但是如果绝缘体层是硬烘烤抗蚀剂,则具有相对较高选择性,低脆性和改进的Ta 2 O 5 粘合作为硬掩模材料是优选的。

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