United Microelectronics (NYSE:UMC) reported quarterly earnings of $0.13 per share which missed the analyst consensus estimate of $0.15 by 12.67 percent. This is a 36.1 percent decrease over earnings of $0.20 per share from the same period last year. The company reported quarterly sales of $1.708 billion which missed the analyst consensus estimate of $1.730 billion by 1.30 percent. This is a 0.77 percent increase over sales of $1.695 billion the same period last year.