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September 25, 2012 11:05 pm

iPhone 5 A6 SoC Teardown: ARM Cores Appear To Be Laid Out By Hand

MrSeb writes "Reverse engineering company Chipworks has completed its initial microscopic analysis of Apple's new A6 SoC (found in the iPhone 5), and there are some rather interesting findings. First, there's a tri-core GPU — and then there's a custom, hand-made dual-core ARM CPU. Hand-made chips are very rare nowadays, with Chipworks reporting that it hasn't seen a non-Intel hand-made chip for 'years.' The advantage of hand-drawn chips is that they can be more efficient and capable of higher clock speeds — but they take a lot longer (and cost a lot more) to design. Perhaps this is finally the answer to what PA Semi's engineers have been doing at Apple since the company was acquired back in 2008..."Pretty picture of the chip after using an Ion Beam to remove the casing. The question I have is how it's less expensive (in the long run) to lay a chip out by hand once instead of improving your VLSI layout software forever. NP classification notwithstanding.

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