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1. 发明申请

WO2014189779A1 TWO SENSOR READER FOR HARD DISK DRIVE (HDD) 审中-公开
标题翻译：硬盘驱动器（HDD）的两个传感器读取器
公开(公告)号：WO2014189779A1
公开(公告)日：2014-11-27
申请号：PCT/US2014/038337
申请日：2014-05-16
申请人： HEADWAY TECHNOLOGIES, INC.
发明人： GARFUNKEL, Glen , HU, David , DOVEK, Moris , WU, Yan , SMYTH, Joseph , LI, Min
IPC分类号： G11B5/39 , G11B5/48 , G11B5/49 , G11B5/265
CPC分类号： G11B5/4976 , G11B5/2654 , G11B5/3948 , G11B5/397 , G11B5/4886 , G11B2005/0005
摘要： A read head with two read sensors enables reading of a magnetically recorded medium of increased areal densities such as would be provided by two-dimensional magnetic recording. The two sensors, which may be formed in separate depositions, are arranged vertically relative to each other as top and bottom sensors, with a downtrack displacement between them that is less than 900 A and a crosstrack displacement that is less than 600 A. Their separate free layers are connected by four or three conducting leads and require no junctions for their connections. In one embodiment each sensor has separate top and bottom shields and leads. In another embodiment, there is a common shield and lead between the two sensors, but a separate top shield/lead for the top sensor and bottom shield/lead for the bottom sensor.
摘要翻译：具有两个读取传感器的读取头使得能够读取增加面密度的磁记录介质，例如将由二维磁记录提供。可以分开形成的两个传感器相对于彼此垂直地布置为顶部和底部传感器，其间的移动位移小于900A，并且排列位移小于600A。它们分开自由层通过四根或三根导线连接，不需要连接用的连接点。在一个实施例中，每个传感器具有分开的顶部和底部屏蔽物和引线。在另一个实施例中，在两个传感器之间存在共同的屏蔽和引线，但是用于顶部传感器的单独的顶部屏蔽/引线和用于底部传感器的底部屏蔽/引线。

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