Because that's where they make the 300mm wafers they use for their engine MCUs: https://www.renesas.com/us/en/products/microcontrollers-microprocessors/other-mc

Because that's where they make the 300mm wafers they use for their engine MCUs: https://www.renesas.com/us/en/products/microcontrollers-microprocessors/other-mcus-mpus/superh-risc-engine-family-mcus https://www.renesas.com/us/en/products/microcontrollers-micr...