STMicroelectronics has named Francois Guibert corporate vice president and chief executive officer of its Asia Pacific region. Guibert, who had been corporate vice president and general manager of ST's Emerging Markets region will replace Jean-Claude Marquet, who is retiring in October. Thierry Tingaud, currently vice president sales and marketing Europe for telecommunications, will be promoted to corporate vice president and general manager of the Emerging Markets region, effective July 1.