Vanguard International Semiconductor Corp. engages in the provision of integrated circuit foundry services. It offers ultra-high voltage (UHV), Bipolar-CMOS-DMOS (BCD), Silicon on Insulator (SOI), isolator, and embedded non-volatile memory among other standardized and customized process. The company was founded on December 5, 1994 and is headquartered in Hsinchu, Taiwan.