Reducing agglomeration of particles while manufacturing a lapping plate using oil-based slurry
AssigneeHGST Netherlands B.V.
InventorsRichard D. Bunch, Juan Francisco Coronado Nuno, Sergio Raul Elizalde Rojo, Ernesto Arturo Marguez Waldthausen
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Abstract
Embodiments of the present invention pertain to reducing agglomeration of particles while manufacturing a lapping plate using an oil-based slurry. According to one embodiment, an oil-based slurry with particles of a known size is applied to a lapping plate. The oil-based slurry is ultrasonically mixed while applying the oil-based slurry to the lapping plate in order to reduce agglomeration of the particles.
Claims16
A method of reducing agglomeration of particles while manufacturing a lapping plate using an oil-based slurry, the method comprising:
- providing a slurry tank comprising an oil-based slurry disposed within an ultrasonic tank, said oil-based slurry not in direct contact with the ultrasonic tank;
- generating an ultrasonic wave inside said ultrasonic tank and outside said slurry tank;
- applying the oil-based slurry with particles of a known size to the lapping plate;
- and
- using ultrasonic mixing to mix the oil-based slurry while applying the oil-based slurry to the lapping plate to reduce agglomeration of the particles, wherein the ultrasonic mixing device works with a conventional charging station.
An ultrasonic mixing device for reducing agglomeration of particles while manufacturing a lapping plate using an oil-based slurry, the ultrasonic mixing device comprising:
- a slurry tank disposed within an ultrasonic tank, said slurry tank containing an oil-based slurry and said oil-based slurry not in direct contact with the ultrasonic tank;
- said ultrasonic tank comprising an ultrasonic wave generation device coupled to the interior of said tank for generating an ultrasonic wave outside said slurry tank for inducing ultrasonic mixing of the oil-based slurry, wherein the oil-based slurry includes particles of known size and wherein the ultrasonic mixing reduces agglomeration of the particles and wherein the ultrasonic mixing device works with a conventional charging station;
- and
- a slurry application component coupled to the ultrasonic tank, wherein the slurry application component is for applying the oil-based slurry to the lapping plate.
Dependencies are inferred from the claim text.