United Microelectronics (NYSE:UMC) reported quarterly earnings of $0.09 per share which missed the analyst consensus estimate of $0.10 by 7 percent. This is a 29.01 percent decrease over earnings of $0.13 per share from the same period last year. The company reported quarterly sales of $1.74 billion which missed the analyst consensus estimate of $1.81 billion by 3.65 percent. This is a 2.11 percent increase over sales of $1.71 billion the same period last year.