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ON Semiconductor Moves Close to Full Ownership of Fujitsu Fab

ON Semiconductor Corporation has completed its incremental 20 percent share purchase of the 8-inch fab of Aizu Fujitsu Semiconductor Manufacturing Limited in Japan's Aizu-Wakamatsu. ON Semiconductor now holds 60 percent majority ownership in the joint venture, which is now known as ON Semiconductor Aizu Co., Ltd.

The two companies entered into an agreement in 2014 under which ON Semiconductor obtained a 10 percent ownership interest in Fujitsu's Aizu 8-inch fab. Initial transfers began in 2014, and successful production and ramp up of wafers began in June 2015.

In Oct. 2017, the two companies further agreed an incremental share purchase of Fujitsu's Aizu 8-inch fab by ON Semiconductor, which increased its ownership interest in Fujitsu's Aizu 8-inch fab to 40 percent in April 2018. ON Semiconductor continues to increase production at the Aizu 8-inch fab, and both companies believe that further strategic partnership will maximize the value for both companies.

ON Semiconductor plans to increase its ownership to 100 percent in the first half of 2020. This additional capacity will allow ON Semiconductor to continue to scale its operations to meet forecasted demand and enable increased supply chain flexibility.