(Certified Best Practice by BMPCOE)
Missile Systems Division - Andover, MA
In 1990, the Raytheon Corporation chartered the Office of Manufacturing and Environmental Quality to eliminate ozone depleting solvents by the end of 1992. This is a company-wide initiative with 36 representatives from 17 Raytheon facilities. The objective is to eliminate ozone depleting solvents used for cleaning CCAs throughout all phases of the manufacturing process. Raytheon maintains that
once that objective is accomplished, acceptable alternatives can be easily used in other solvent applications.
To accomplish this effort, Raytheon MSD has employed a two-phase approach. Phase I identified those possible candidates for both chemistry and achine suitability for the Raytheon CCA cleaning needs. Phase II established a pilot facility at Raytheon MSD Andover and evaluated those candidates which pass Phase I testing.
Phase I testing involved the design and manufacturing of test boards, vendor visits, development of a detailed test plan that paralleled IPC, Environmental Protection Agency, and DOD testing, and the performance of cleanliness testing through visual inspection, surface insulation resistance, ionic resistively and liquid chromatography. Phase II involved the establishment of a pilot facility at Andover development of standard cleaning processes further evaluation of alternate cleaning solvents from Phase I in a manufacturing environment evaluation of closed-loop rinsewater systems and performing product qualification.
The Raytheon Corporation conducted an extensive investigation into the elimination of ozone depleting solvents.
Their effort is corporate-wide with total participation. It again demonstrates the ability of the Raytheon Corporation to achieve integration and solve problems at a corporate level.