Toshiba said at the end of last year that it would divest its manufacturing of large scale integration (LSI) semiconductors because of the cost of building cutting edge fabrication plants. It is becoming a “fabless” semiconductor company.
Sony originally owned the plant and sold it to Toshiba in 2008. Toshiba used it to build CMOS sensors.
The terms of the deal to sell the Nagasaki fab have now been ironed out, and Sony will use the factory to make image sensors. The fab will change hands on the 1st of April.