Wd Media, LLC

Rhownica A Lund

Chaoyuan C Chen

Atul K Trivedi

Shaun H Chen

Bing-Shiuan Chang

Andreas Parks

John Cho

Matthew Cole Hendrickson

A sonication cleaning tank containing a liquid is monitored. A first opacity count is generated indicative of contaminants and/or bubbles in the liquid. At least some of the liquid is filtered to remove contaminants from the liquid, and a second opacity count indicative of contaminants and/or bubbles in the filtered liquid is generated. Based at least in part on the first and second opacity counts, a contaminant count corresponding to an estimated number of contaminants in the liquid is then determined.

Sonication cleaning with a particle counter

A disk is placed into a sonication cleaning tank containing a liquid. A first flow rate and a first sonication power are applied to the liquid to clean the disk. An opacity count is generated indicative of contaminants and/or bubbles in the liquid. Based at least in part on the opacity count, a second flow rate and a second sonication power are then applied to the liquid.

Process control for a sonication cleaning tank

A fluid flow method and apparatus are described. The apparatus includes a trough coupled between tanks to provide an air flow down between the tanks.

Fluid flow management

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Fremont, CA, United States of America

Rhownica A Lund