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US 8,562,748 B1Granted
Multiple cleaning processes in a single tank
AssigneeWD Media, LLC
InventorsChaoyuan Chen, Shaun Chen, Michael S. Rosano
Life of this patent
Estimating the term…
Abstract
Methods of cleaning workpieces are described. One method includes performing both a sonication cleaning operation and a rinse cleaning operation within a single cleaning tank. Another cleaning method described includes the use of cross flow of cleaning liquid within a cleaning tank while performing a rinse clean. The cleaning method includes the oscillation of one or more workpieces in the cleaning tank to perform the rinse clean.
Claims27
A method for performing multiple cleaning processes within a single tank, the method comprising:
- sonicating a plurality of workpieces, for a first time period, within a first cleaning tank having a cleaning liquid, wherein the sonicating comprises generating an acoustic stream in a direction towards the plurality of workpieces to produce cavitations cleaning of the plurality of workpieces;
- oscillating, during the sonicating, the plurality of workpieces fully submerged within the cleaning liquid in the first cleaning tank, in a parallel direction to the acoustic stream, to generate agitation cleaning of the plurality of workpieces;
- and
- rinsing, for a second time period, the plurality of workpieces by further oscillating the plurality of workpieces in the cleaning liquid of the first cleaning tank, wherein the further oscillating comprises removing at least a portion of the plurality of workpieces from submersion in the cleaning liquid and further sonicating the plurality of workpieces.
1 more element
Dependencies are inferred from the claim text.