UMC Reports Fourth Quarter 2023 Results

Revenue contribution from 22/28nm grew to 36% of the wafer revenue, while 40nm contribution was 14% of sales.

Revenue Breakdown by Geometry

Geometry

4Q23

3Q23

2Q23

1Q23

4Q22

14nm and below

0%

0%

0%

0%

0%

14nm<x<=28nm

36%

32%

29%

26%

28%

28nm<x<=40nm

14%

13%

12%

15%

17%

40nm<x<=65nm

16%

19%

23%

19%

17%

65nm<x<=90nm

9%

8%

10%

10%

9%

90nm<x<=0.13um

9%

12%

10%

12%

12%

0.13um<x<=0.18um

9%

9%

9%

10%

10%

0.18um<x<=0.35um

5%

5%

5%

6%

5%

0.5um and above

2%

2%

2%

2%

2%

Revenue from fabless customers accounted for 78% of revenue.

Revenue Breakdown by Customer Type

Customer Type

4Q23

3Q23

2Q23

1Q23

4Q22

Fabless

78%

79%

79%

77%

81%

IDM

22%

21%

21%

23%

19%


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