TSMC reached an accord with construction labor unions late last year.
The chipmaker originally planned to have its first Arizona plant start full production this year, but pushed back the target to next year over the labor issues. It later delayed the start date for its second fab to 2027 or 2028, from an initial target of 2026. That fueled concerns that the company might not be able to make chips in the US as efficiently as in Taiwan.
TSMC could now be keen to expand its US presence further, depending in part on the possibility of more US government backing, Cassidy said, citing early conversations in Washington about a second CHIPS Act.
There is room for at least six fabs at the Phoenix complex.