gore.com/filters Situation The ultrafiltration (UF) modules at a major semiconductor manufacturer were not providing the desired performance for capturing particles in their ultrapure water (UPW) polish loop. Actual particle counts in their production UPW system were typically running at 400 to 500 counts/liter at 0.05µm, with spikes above 1,000. The manufacturer’s target particle count was less than 100 counts/liter. They wanted to m

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