SemiconductorsMass production postponed to 2026 due to tool delays and market conditionsUMC's new $5 billion plant in Singapore will make mature chips for a range of applications. (Photo by Cheng Ting-Fang)TAIPEI -- Taiwan's second-largest chipmaker, United Microelectronics Corp., on Tuesday opened a $5 billion plant that it describes as the "most advanced" in Singapore as the company works to meet customer demand for more diversified production.The new facility is equipped with UMC's 22-nanomet...