2010
May
Celebrates 30th anniversary
December
Fab 12A Phase 3 enters volume production
2011
October
UMC enters 28nm pilot production
2012
May
Fab 12A Phase 5 & 6 groundbreaking
2013
March
UMC acquires Hejian fab based in Suzhou, China
May
UMC designates Singapore Fab 12i as Specialty Technology Center of Excellence
2014
August
UMC joins Fujitsu's new foundry company
2015
March
United Semi (Xiamen) fab groundbreaking
2016
November
Fab 12X enters volume production in Xiamen, China
2017
February
UMC enters mass production for 14nm customer ICs
2018
June
Board approves 100% acquisition of MIFS fab in Japan
2019
October
Acquires 100% of MIFS 300mm fab, renamed USJC