Who was Taiwan's first semiconductor company? Who was Taiwan's first foundry? If you said UMC, you are right, but you probably didn't. UMC stands for United Microelectronics Corporation (although people rarely spell it out, they just use the initials). It was created 40 years ago in 1980 as a spinoWho was Taiwan's first semiconductor company? Who was Taiwan's first foundry? If you said UMC, you are right, but you probably didn't. UMC stands for United Microelectronics Corporation (although people rarely spell it out, they just use the initials). It was created 40 years ago in 1980 as a spinoWho was Taiwan's first semiconductor company? Who was Taiwan's first foundry? If you said UMC, you are right, but you probably didn't. UMC stands for United Microelectronics Corporation (although people rarely spell it out, they just use the initials). It was created 40 years ago in 1980 as a spino