September 9, 2011
TSMC to Start Mass Production of 28nm (A6) Chips in Early 2012, Hinting at iPad 3 Launch in Q1 2012
Apart from the ongoing lawsuit problems between Samsung and Apple, one of the main reasons behind Apple’s switch to TSMC (Taiwan Semiconductor Manufacturing Company) was their 28nm process technology for manufacturing ARM based chips. Till now Samsung has manufactured Apple’s A4 and A5 chips, but as anyone who has seen both the chip would know that A5 chip is almost double the size of A4 chip. The size difference is because both the chips are made with 40nm process technology, even though the A5 chip has dual core Cortex A9 processor and dual core PowerVR graphics engine, in place of single core process and graphics engine on A4 chip.