Our History
1980-1999
2000-2009
2010-2019
2020-Now
1980
1985
1995
1996
1997
1998
1999
1980

May
UMC established
1985

July
Becomes the first IC company to list on the Taiwan Stock Exchange.
1995

July
Begins transformation into a pure-play foundry
July-September
Three joint venture foundry companies established
September
200mm fab begins production
1996

January
0.35-micron volume production.
1997

October
0.25-micron volume production.
1998

April
Acquires Holtek Semiconductor fab.
December
Acquires Nippon Steel Semiconductor Corp. fab; renamed Fab UMCJ in 2001.
1999

March
0.18-micron volume production.
November
Begins construction of 300mm fab in Taiwan's Tainan Science Park, Fab 12A.