Method for making a magnetic recording head with a piezoelectric actuator for controlling head-media spacing
AssigneeSeagate Technology LLC
InventorsGlen Cornelius Masterson, Jennifer Carville, Paula Frances McElhinney
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Abstract
A magnetic recording head includes a piezoelectric actuator for controlling head-media spacing. A method for making the magnetic recording head including a piezoelectric actuator includes the steps of: providing a source wafer on which to fabricate the piezoelectric actuator; providing a target wafer; fabricating the piezoelectric actuator on the source wafer; releasing the piezoelectric actuator from the source wafer; and placing the piezoelectric actuator on the target wafer.
Claims20
A method for making a magnetic recording head, the magnetic recording head comprising a piezoelectric actuator for controlling head-media spacing, the method comprising the steps of:
- providing a source wafer on which to fabricate the piezoelectric actuator;
- providing a target wafer;
- fabricating the piezoelectric actuator on the source wafer;
- releasing the piezoelectric actuator from the source wafer;
- and
- placing the piezoelectric actuator on the target wafer.
A method for making a magnetic recording head, the magnetic recording head comprising a piezoelectric actuator for controlling head-media spacing, the method comprising the steps of:
- providing a source wafer on which to fabricate the piezoelectric actuator;
- providing a sacrificial layer on the source wafer;
- providing a target wafer;
- fabricating the piezoelectric actuator on the source wafer;
- depositing a tether layer on the piezoelectric actuator;
- pattering tethers in the tether layer, the tethers configured to bind the piezoelectric actuator to the source wafer after removing the sacrificial layer;
- removing the sacrificial layer with an etch process such that a gap remains between the piezoelectric actuator and the source wafer, and the piezoelectric actuator is bound to the source wafer by the tethers;
- contacting a surface of the tether layer with a stamp such that the tether layer becomes coupled to the stamp;
- applying a force to the stamp such that the tethers are broken and the piezoelectric actuator is lifted from the source wafer;
- and
- placing the piezoelectric actuator on the target wafer.
A method for making a magnetic recording head, the magnetic recording head comprising a piezoelectric actuator for controlling head-media spacing, the method comprising the steps of:
- providing a source wafer on which to fabricate the piezoelectric actuator;
- providing a target wafer;
- providing a sacrificial layer on the source wafer;
- depositing one or more piezoelectric layers and one or more electrodes on the source wafer;
- patterning the one or more piezoelectric layers to segregate and define the piezoelectric actuator;
- releasing the piezoelectric actuator from the source wafer;
- and
- placing the piezoelectric actuator on the target wafer.
Dependencies are inferred from the claim text.