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Apple Insider reports that Apple's next-generation A6 processor, expected to arrive in future versions of the iPad and iPhone, is said to have gone into trial production ahead of a launch expected in the first half of 2012.



The ARM-based A6 is said to incorporate TSMC's 28-nanometer process and 3D stacking technology. The chipmaker's "silicon interposer" and "bump on trace" methods are also said to be utilized in the next-generation chip.

Trial manufacturing of the A6 processor was originally claimed by Reuters to have begun in July, when it was also indicated the chips would make their way into devices in 2012. Both reports have pegged TSMC as the manufacturer, lending credence to rumors that Apple is looking to move away from Samsung, which has built its A4 and A5 processors.
  Apple begins trial production of A6 processor set to launch in 2012