In-situ lapping plate mapping device
AssigneeSeagate Technology LLC
InventorsRaymond Leroy Moudry, Pramit Parikh, Mark Allen Herendeen, Joel W. Hoehn
Life of this patent
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Abstract
A device and associated method of use can have at least an object with a work surface that contacts a lapping surface of a tool. Topography of the lapping surface can be mapped in-situ by an adjacent sensor array and the topography stored in a memory. The sensor array may be configured with a plurality of sensors positioned on opposite sides of the object.
Claims20
An apparatus comprising a rowbar having a work surface contacting a lapping surface of a tool, a topography of the lapping surface mapped in-situ by an adjacent sensor array and the topography stored in a memory, the sensor array comprising first, second, and third sensors that are respectively different sensor types, the first and second sensors positioned on opposite sides of the rowbar, the first sensor configured to monitor the rowbar, the second sensor configured to monitor the lapping surface, and the third sensor attached to the rowbar with a lapping guide pad.
A method comprising:
- contacting a work surface of a rowbar with a lapping surface of a tool;
- mapping a topography of the lapping surface in-situ by a first sensor positioned on a first side of the rowbar;
- monitoring the work surface of the rowbar with second and third sensors, the second sensor positioned on a second side of the rowbar, opposite the first side, the third sensor attached to the rowbar via a lapping guide pad, the first, second, and third sensors being different types of sensors;
- and
- storing the topography in a memory.
A method comprising:
- contacting a work surface of a rowbar with a lapping surface of a tool;
- mapping a topography of the lapping surface in-situ by an inductive sensor positioned on a first side of the rowbar;
- monitoring the work surface of the rowbar with an environmental sensor positioned on a second side of the rowbar, opposite the first side, and with a lapping guide sensor attached to the rowbar via a lapping guide pad;
- storing the topography in a memory;
- and
- adjusting the work surface in response to the mapped topography and the monitored work surface.
Dependencies are inferred from the claim text.