 Oregon Fruit Products, Inc., has been canning blackberries, marionberries and other fruits in Salem since 1935, with "Oregon" as its brand name.In a bid to diversify its economic base, Salem attracted a number of computer-related manufacturing plants in the 1990s.In November 2003, the Sumitomo Mitsubishi Silicon Group (SUMCO), one of these arrivals, announced it would be closing its two silicon wafer plants at the end of 2004, eliminating 620 jobs, and moving production to other plants.