Apple is already testing the initial batch of processors produced for its devices by TSMC Arizona, reports Nikkei Asia. To begin with, the tests intend to compare the Arizona output to see if the quality is similar to chips produced in TSMC’s cutting-edge fabs in Taiwan.

TSMC's chip foundry in Arizona is not just making one Apple chip, as a second Apple design is reportedly now in production at the facility.

The Arizona fab is a key move to strengthen U.S. semiconductor supply chains as competition in the industry heats up globally. The Arizona facility has led the transition, but other tech giants, such as AMD ( AMD,

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Taiwan Semiconductor Manufacturing Company (TSMC) first announced its plans to build an “advanced semiconductor manufacturing fabrication” facility in Arizona in early 2020, committing to a $12 billion investment in Phoenix that it later increased to a staggering $40 billion when it committed to a second facility in the state.

Taiwan Semiconductor Manufacturing Co. (TSMC) has started producing advanced 4-nanometer chips in Arizona, marking a milestone in the Biden administrations semiconductor strategy. U.S. Commerce Secretary Gina

TSMC agreed to expand its planned investment by US$25 billion to US$65 billion and to add a third Arizona fab by 2030.