PRAXAIR EMPLOYES NWA FOR ULTRA-PURE PROCESS GAS CUSTOMER SATISFICATION Praxair Electronics produces process and precursor gases used by the majority of semiconductor chip and solar cell manufacturers. The Praxair product line includes ammonia, silane, dichlorosilane, arsine, phospine dopant mixtures, inert gases, halocarbon etchant gases, and support products and services. Gas contamination and variation affect chip yield rates and the required reduction in impurity levels for successful chip production. Continuous Process Improvement (CPI) drives performance to meet the requirements. To meet their CPI goals, Praxair uses NWA Quality Analyst to drive control limits tighter and decrease variation. As one of the top players in semiconductor industry gases and related services, Praxair s

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