Clarifying 90 to 95% of contamination
A manufacturing process consists of many steps, each fraught with potentially costly problems. A dirty fluid stream can decrease productivity and lead to high rejection rates. Pall filtration devices are designed to be deployed in strategic locations in the process stream in order to maximize productivity and profitability. A filtration device, for example, can protect a critical orifice (i.e. a cleaning nozzle) so that the openings do not become clogged and cause downtime. If the fluid in question is re-circulating, bath lifetime can be maximized by placing a filtration device in the line. Removing haze or dust are other reasons for using filtration. This is exemplified by the increase in tool up-times that can be achieved with proper filtration to protect vacuum pumps.
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Pall has designed specific filtration technologies for almost all process steps from polysilicon manufacturing, ingot growing and wafering to cell processing. Pall also addresses waste treatment for slicing slurry, water/silicon reclamation in pre-shaping operations and puller exhaust gas dust abatement.
Large scale photovoltaic production operations are pushing manufacturing precision requirements to higher and higher levels. Photovoltaic processes can be extremely sensitive to the presence of contaminants. Pall has highly advanced filter solutions for the filtration of waste reclaim systems, and process gas filtration/purification.
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