Current-perpendicular-to-the-plane (CPP) magnetore

专利名称：Current-perpendicular-to-the-plane (CPP)

magnetoresistive (MR) sensor structure withstacked sensors for minimization of theeffect of head skew

发明人：Masashi Hattori,Kenichi Meguro,Kouichi

Nishioka,Takashi Wagatsuma,Nobuo Yoshida

申请号：US14513320申请日：20141014公开号：US09099125B1公开日：20150804

专利附图：

摘要：A two-dimensional magnetic recording (TDMR) multi-sensor read head hasthree stacked sensors separated by magnetic shields. The lower sensor is the primarysensor that is always aligned with the target track. The middle sensor is spaced laterallyfrom the lower sensor a distance substantially equal to the track pitch (TP). The uppersensor is aligned with the lower sensor. The spacing D between the lower and uppersensors is selected to be related to TP and a maximum skew angle, where the skew angleis the angle between a line orthogonal to the sensor and the data track that varies withradial position of the head. The read head is connected to circuitry that selects two of thethree sensors to be the active sensors depending on the radial position of the head andthus the skew angle of the head.

申请人：HGST Netherlands B.V.

地址：Amsterdam NL

国籍：NL

代理人：Thomas R. Berthold

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