Apple's demand for a price cut on A9 chips could lead to a major production cutback for TSMC
Because TSMC has not been as open to lowering its pricing, the company might end up with fewer A9 orders from Apple than expected. Without orders for 16nm process chips from other companies to replace the shortfall from Apple, TSMC might have to reduce production from 30,000 wafers a month using the 16nm FinFET process, to fewer than 20,000 wafers.
For months, we have heard conflicting reports over which company will be producing the lion's share of A9 chips. Back in April, the rumor at that time had Samsung and GlobalFoundries producing all of the A9 chipsets with TSMC getting shut out. That apparently was not true. In June, a report from China had TSMC ramping up mass production of the A9.
If current speculation that the Apple iPhone 6s and Apple iPhone 6s Plus will be unveiled on September 9th is legit, some quantities of the A9 chip have had to already tumble down the assembly line of one or both chipmakers.