DYNAMIC BOWTIE FILTER FOR CONE-BEAM/MULTI-SLICE CT
    1.
    发明申请
    DYNAMIC BOWTIE FILTER FOR CONE-BEAM/MULTI-SLICE CT 审中-公开
    锥形/多层CT的动态波纹过滤器

    公开(公告)号:US20160113602A1

    公开(公告)日:2016-04-28

    申请号:US14924495

    申请日:2015-10-27

    IPC分类号: A61B6/00 A61B6/03

    摘要: Dynamic bowties, imaging systems including a bowtie, and methods of imaging including such bowties or systems are provided. A bowtie can be a three-dimensional (3-D) dynamic bowtie and can include a highly-attenuating bowtie (HB) and a weakly-attenuating bowtie (WB). The HB can be filled with a liquid, and the WB can be immersed in the liquid of the HB.

    摘要翻译: 提供动态弯曲,包括弓形的成像系统,以及包括这种弯曲或系统的成像方法。 Bowtie可以是一个三维(3-D)动态的蝴蝶结,可以包括高度衰减的蝴蝶结(HB)和弱衰减的蝴蝶结(WB)。 HB可以充满液体,WB可以浸入HB的液体中。

    Perpendicular magnetic recording head with a bottom side shield
    6.
    发明授权
    Perpendicular magnetic recording head with a bottom side shield 有权
    垂直磁记录头带底侧屏蔽

    公开(公告)号:US08189295B2

    公开(公告)日:2012-05-29

    申请号:US13135276

    申请日:2011-06-30

    IPC分类号: G11B5/127

    摘要: A perpendicular magnetic recording (PMR) head has a pole tip shielded laterally by a separated pair of bottom side shields and shielded from above by an upper shield. The bottom side shields surround a lower portion of the pole tip while the upper portion of the pole tip is surrounded by non-magnetic layers. The bottom shields and the non-magnetic layer form a wedge-shaped trench in which the pole tip has been formed by a self-aligned plating process. A write gap layer and an upper shield is formed above the side shields and pole. The resulting structure substantially eliminates track overwrite while maintaining good track definition.

    摘要翻译: 垂直磁记录(PMR)头具有通过分离的一对底侧屏蔽横向屏蔽的极尖,并由上屏蔽从上方屏蔽。 底侧屏蔽围绕极尖的下部,而极尖的上部被非磁性层包围。 底部屏蔽层和非磁性层形成楔形沟槽,其中极尖已经通过自对准电镀工艺形成。 写入间隙层和上屏蔽形成在侧屏蔽和极上。 所得到的结构基本上消除了轨道重写,同时保持良好的轨道定义。

    Perpendicular magnetic recording head with a bottom side shield
    7.
    发明申请
    Perpendicular magnetic recording head with a bottom side shield 有权
    垂直磁记录头带底侧屏蔽

    公开(公告)号:US20110261486A1

    公开(公告)日:2011-10-27

    申请号:US13135276

    申请日:2011-06-30

    IPC分类号: G11B5/187

    摘要: A perpendicular magnetic recording (PMR) head has a pole tip shielded laterally by a separated pair of bottom side shields and shielded from above by an upper shield. The bottom side shields surround a lower portion of the pole tip while the upper portion of the pole tip is surrounded by non-magnetic layers. The bottom shields and the non-magnetic layer form a wedge-shaped trench in which the pole tip has been formed by a self-aligned plating process. A write gap layer and an upper shield is formed above the side shields and pole. The resulting structure substantially eliminates track overwrite while maintaining good track definition.

    摘要翻译: 垂直磁记录(PMR)头具有由分离的一对底侧屏蔽物侧向屏蔽的极尖,并由上屏蔽从上方屏蔽。 底侧屏蔽围绕极尖的下部,而极尖的上部被非磁性层包围。 底部屏蔽层和非磁性层形成楔形沟槽,其中极尖已经通过自对准电镀工艺形成。 写入间隙层和上屏蔽形成在侧屏蔽和极上。 所得到的结构基本上消除了轨道重写,同时保持良好的轨道定义。

    Method to make a perpendicular magnetic recording head with a bottom side shield
    8.
    发明授权
    Method to make a perpendicular magnetic recording head with a bottom side shield 有权
    制造具有底侧屏蔽的垂直磁记录头的方法

    公开(公告)号:US07978431B2

    公开(公告)日:2011-07-12

    申请号:US11809346

    申请日:2007-05-31

    IPC分类号: G11B5/127

    摘要: A perpendicular magnetic recording (PMR) head is fabricated with a pole tip shielded laterally by a separated pair of bottom side shields and shielded from above by an upper shield. The bottom side shields surround a lower portion of the pole tip while the upper portion of the pole tip is surrounded by non-magnetic layers. The bottom shields and the non-magnetic layer form wedge-shaped trench in which the pole tip is formed by a self-aligned plating process. The wedge shape is formed by a RIE process using specific gases applied through a masking layer formed of material that has a slower etch rate than the non-magnetic material or the shield material. A masking layer of Ta, Ru/Ta, TaN or Ti, formed on a non-magnetic layer of alumina that is formed on a shield layer of NiFe and using RIE gases of CH3OH, CO or NH3 or their combinations, produces the desired result. A write gap layer and an upper shield is then formed above the side shields and pole. The resulting structure substantially eliminates track overwrite while maintaining good track definition.

    摘要翻译: 垂直磁记录(PMR)头被制造成具有通过分离的一对底侧屏蔽横向屏蔽的极尖,并由上屏蔽从上面屏蔽。 底侧屏蔽围绕极尖的下部,而极尖的上部被非磁性层包围。 底部屏蔽层和非磁性层形成楔形沟槽,其中极尖通过自对准电镀工艺形成。 楔形形状通过RIE工艺形成,其使用通过由比非磁性材料或屏蔽材料具有较慢蚀刻速率的材料形成的掩模层施加的特定气体。 形成在NiFe的屏蔽层上并使用CH 3 OH,CO或NH 3的RIE气体或其组合的形成在氧化铝的非磁性层上的Ta,Ru / Ta,TaN或Ti的掩蔽层产生期望的结果 。 然后在侧屏和极上方形成写间隙层和上屏蔽。 所得到的结构基本上消除了轨道重写,同时保持良好的轨道定义。