TSMC has confirmed it will build not one, but two advanced chip manufacturing plants in Arizona, more than tripling the Asian foundry giant's original investment to $40 billion, even though the company has complained about the US project becoming a major headache for multiple reasons. The Taiwanese contract chipmaker said on Tuesday it plans to construct a second fab in Phoenix, Arizona, that will produce 3nm chips when it goes online in 2026. This is in addition to the previously announced fab set for 2024 operation that is now set to manufacture 4nm silicon wafers, not 5nm as originally intended,...