发明名称 Electromagnetic heads, flexures, gimbals and actuators formed on and from a wafer substrate
摘要 Devices for reading or writing electromagnetic information include a wafer substrate piece disposed between an electromagnetic transducer and an electrostrictive or piezoelectric actuator. The substrate piece is shaped as a rigid body adjoining the transducer and as a flexible element connecting the body and the actuator. To fabricate, at least one electrostrictive layer and many transducers are formed on opposite sides of a wafer that is then cut into rows containing plural transducers. The rows are processed from directions generally normal to the wafer surface upon which the transducers were formed, by removing material to form a head, flexures and a media-facing surface on the head. Conductive leads are formed on a back surface of flexures connecting the transducer with drive electronics. The flexures are aligned with forces arising from interaction with the media surface and from seeking various tracks, reducing torque and dynamic instabilities and increasing actuator access time.
申请公布号 US8432643(B1) 申请公布日期 2013.04.30
申请号 US201213367167 申请日期 2012.02.06
申请人 LAUER MARK A. 发明人 LAUER MARK A.
分类号 G11B5/56;G11B5/48;G11B21/16 主分类号 G11B5/56
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