Seagate Technology Incorporated

Youping Mei

Lance Eugene Stover

Dale E Egbert

Ling Ma

Jun Mou

Wayne Allen Bonin

Zine Eddine Boutaghou

Jason Wayne Riddering

Ladislav Rudolf Pust

Jianxin Zhu

Mallika Kamarajugadda

Sunita B Gangopadhyay

Jumna P Ramdular

Lanshi Zheng

James Richard Peterson

Jane Katherine Gates

The present invention relates to a controlled air bearing which allows adjustable control over the magnetic spacing between the pole tips of a slider and the surface of the disc. In accordance with one embodiment of the invention, a slider for use in a data storage system, the slider comprises a base portion having a leading edge end and a trailing edge end. The embodiment further comprises a movable air bearing surface element positioned at the leading edge end of the base portion. Finally, the embodiment further comprises an actuator positioned at the leading edge end of the base portion and coupling the base portion to the movable air bearing surface element, the actuator selectively controllable to move the movable air bearing surface element relative to the base portion to alter an air bearing surface provided by the base portion and the movable air bearing surface element to thereby control a fly height of the slider. The present invention includes a method for implementing the steps performed by the embodiment of the apparatus.

Controlled air bearing (CAB) for magnetic spacing control

A method and apparatus are provided for adjusting recession of an element, such as a pole tip, in a transducer structure formed in a plurality of thin film layers on an edge of a slider. A pre-stressed structure is formed as part of the plurality of thin film layers on the edge of the slider. The pre-stressed structure has a level of material stress. The recession is measured relative to a bearing surface of the slider, and then the level of material stress is adjusted as a function of the measured to effect a corresponding change in the recession.

Method of adjusting recession of an element of a slider

Slider having adjusted transducer recession and method of adjusting recession

A head for a magnetic drive that includes a substrate with a thermal expansion rate CTE. A transducer in the head has a bond to the substrate and has a transducer thermal expansion rate CTEthat is greater than CTEA restraint layer in the substrate has a bond to one side of the transducer and has a first restraint layer thermal expansion rate CTEthat is lower than CTEThe restraint layer restrains protrusion of the transducer beyond the substrate at higher operating temperatures.

Thermal compensation for head protrusion in a magnetic drive

The slider and method of the present invention relate to a slider for a disc drive. The slider includes a substrate having a cavity and a filler within the cavity. The slider further includes a transducer that is positioned near the filler. The design facilitates controlling the relative thermal expansion between the transducer and substrate of the slider that is near the transducer. Compensating for the thermal expansion of the transducer provides a more consistent fly height of the slider during operation of the disc drive. In addition, the design adjusts the air-bearing surface of the slider such that the transducer does not extend below the rest of the slider as the transducer expands.

Wafer fabrication for thermal pole tip expansion/recession compensation

A clamping apparatus for holding elements includes a first spring member and a second spring member. The first spring member has a rigid portion that applies the majority of force to the elements. The second spring member is attached to the first spring member. The second spring member is more flexible than the first spring member. The second spring member has a structure that accommodates dimensional variations in elements held by the clamping member.

Compliant clamping mechanism for accurate alignment of a group of miniature parts

A microfabricated slider assembly used in a disc drive is disclosed. The slider assembly has a slider body having a stator and a rotor, wherein the rotor and the stator are integrally formed from a single substrate. The rotor has a head supporting portion movable both laterally and vertically in relation to the stator to facilitate positioning the transducer head accordingly. The slider assembly also has a microactuator for actively moving the rotor. In one embodiment, the slider assembly has microactuators for actively moving the rotor both laterally and vertically.

Micro-actuated micro-suspension(MAMS) slider for both fly height and tracking position

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Eden Prairie, MN, United States of America

Youping Mei