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Producing wafers at TSMC Arizona is only 10% more expensive than in Taiwan: TechInsights
It is equipment, not labor that defines chipmaking costs.
According to other people familiar with the fab-building process, it does not cost twice as much to build a fab in the USA than in Taiwan. Wages in the U.S. are roughly triple those in Taiwan, which many mistakenly take as a significant factor in chip production. It should be noted that wafers that TSMC currently produces at Fab 21 travel back to Taiwan to get diced, tested, and packaged.
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