Infineon Technologies A.G. said it has agreed to sell its minority stake in UMCi Pte. Ltd., to majority holder United Microelectronics Corp. for an undisclosed amount in a move that the German semiconductor company said would give it access to all of UMC's wafer fabs.
UMCi was founded in 2001 as a joint venture between Infineon, UMC and Singapore's Economic Development Board, which is expected to maintain its equity investment in the foundry.
Additionally, Infineon and UMC said they successfully produced "functional complex circuitry" in their 90nm joint development program.
The companies said their 300mm joint engineering program also achieved high-yield pilot production of 130nm SoC for the mobile market using analog and mixed signal mode circuitry.
Infineon in a statement acknowledged 300mm production has been challenging but said the 130nm SoC ICs are being successfully produced at UMC fabs for applications outside its core DRAM market.
"While Infineon was one of the very first companies to demonstrate the economical advantages of high-volume manufacturing of DRAMs on 300mm wafers, we have now managed to attain a similar milestone for complex SoC ICs with analog and mixed-mode functionality, in close cooperation with our technology and manufacturing partner UMC," said Andreas von Zitzewitz, chief operating officer of Infineon, in a statement."
Infineon indicated that the two companies would continue their joint development programs but "in specific advanced technologies needed for Infineon product success."