CAT 
Apple and manufacturing partner Amkor have announced that a new chip packaging foundry will be built very near the Arizona TSMC foundry, simplifying Apple Silicon production in the US.
Amkor’s headquarters in Arizona
Amkor’s headquarters in ArizonaChip packaging is a near-final step to complete chip delivery. A fabricator, like TSMC, will make the initial chips, and the chip packaging process surrounds the silicon chip to both protect it, and allow it to be mounted to a board.
Apple’s US chip manufacturing pipeline just got a big boost
Apple’s US chip manufacturing pipeline just got a big boost
