Earlier this month, a report indicated that Samsung would produce the A9 chip for the next-generation iPhone. Now, KGI Securities analyst Ming-Chi Kuo, a reliable source on Apple's future plans, says that he expects Taiwan Semiconductor Manufacturing Company (TSMC) to supply 30% of the chip orders for the next-generation iPhone. This is the latest turn in what has become a back-and-forth affair in determining the companies that will supply A9 chips for next-generation iPhones.
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We believe key reasons in Apple’s (US) last minute decision to recruit TSMC are: (1) unstable yield rate at GlobalFoundries (US); (2) TSMC’s 16nm FinFET Turbo has exceeded Apple’s expectations in yield rate and performance; and (3) concerns of insufficient 14nm supply from Samsung LSI (KR) due to better-than-expected market feedback of Galaxy S6 and S6 Edge, which uses the in-house 14nm FinFET-manufactured application processor Exynos 7420.
Kuo notes that GlobalFoundries, Samsung's manufacturing partner, has thus far had an unstable yield rate of 30% for the A9 chip, which is below the 50% yield rate that is required for mass production. Bringing TSMC into the chip-supplying fold calms some of the uncertainties of Apple. Additionally, TSMC's 16-nanometer process has exceeded Apple's expectations.
Alternatively, the Cupertino company is worried that the success of the the Samsung Galaxy S6 and S6 Edge, which use Samsung's advanced 14-nanometer process for their chips, will mean that Apple won't be able to book enough chips from Samsung for the next-generation iPhone. Thus, Apple is turning toward TSMC to complement the supplies from both Samsung and GlobalFoundries.
However, over the past couple of months there has been confusion and conflicting reports over the production of the A9 chip in Apple's next-generation devices. In December, a report indicated that Samsung had begun producing A9 chips. In the same month, another report indicated TSMC would be the main supplier for A9 chips in the next iPhone. Then, in January, Kuo expected TSMC to only provide A9X chips for the next-generation iPad. Finally, earlier this month, another report indicated that Samsung and partner GlobalFoundries would become the supplier for the A9 chip.
Top Rated Comments
Single source is just how the SoC business works. It would take significant manpower to tape out a chip on two processes in the same time as one process.
We know Apple does custom layout optimization that would be difficult to normalize across processes.
We have had chips that can be fabbed at multiple foundries, but this is at a bigger 40nm with wider margins that allow it more easily.
Not to mention their new RAM and NAND.