What's Hot ! Dec. 29, 2011   UMC Pushes 8" Manufacturing Limit with A+ Technology Solution [PDF]     Jun. 25, 2010   UMC JAPAN Announces Representative Director and Board Member Changes [PDF]     Feb. 18, 2010   Yr2009 Financial Results Presentation Material [PDF]     Feb. 18, 2010   UMC JAPAN Reports FY2009 Full Year Results [PDF]     Feb. 18, 2010   Announcement of Approval Partial Amendments to the Articles of Incorporation and Acquisition of Fully Exchangeable Common Shares, and Record Date for Acquisition [PDF]