Applied Materials No-Politics Thread (AMAT) Message Board

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Technology Stocks : Applied Materials No-Politics Thread (AMAT)

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Nov 28 9:30 AM EST

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To: FJB who wrote (24755)	12/9/2010 3:49:06 PM
From: Ian@SI	Read Replies (1) of 25522

A properly designed electrical system should isolate the clean room from external anomalies. e.g. Electricity drives a motor generator which in turn generates the power required by all equipment essential to run the fab. The motor generator will continue generating clean power for a few seconds after a complete failure. The motor generator is also normally run off batteries (i.e. - large room filled with wet cell lead batteries designed explicitly for this purpose. The batteries are kept charged by either the Electical Utility source or by the fab's own diesel generators. A UPS unit automatically switches the source if and when required.

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