Macworld Independent tech journalist Tim Culpan reports that Apple is now in early production of A16 chips at TSMC’s new Arizona plant. The A16 is manufactured on an advanced 5nm process (some call it 4nm) that TSMC calls N4P. This is said to be the same process used at TSMC’s plant in Taiwan, and the Arizona plant apparently has yields (the percentage of good, usable chips per silicon wafer) that are only a little behind the Taiwan plant. The process is being refined, and yield parity will probably be achieved by the time the plant goes into full-volume production early in 2025. The A16 was t…