| Revenue Breakdown by Customer Type | |||||||||||||||
| Customer Type | 1Q17 | 4Q16 | 3Q16 | 2Q16 | 1Q16 | ||||||||||
| Fabless | 93 | % | 93 | % | 93 | % | 93 | % | 91 | % | |||||
| IDM | 7 | % | 7 | % | 7 | % | 7 | % | 9 | % | |||||
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UMC Reports First Quarter 2017 Results
28nm revenue declined to 17% in 1Q17, reflecting lower wafer shipments
for the communication segment. 40nm accounted for 29% of sales.
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