Apple is expected to become the largest client for Taiwan Semiconductor Manufacturing Company (TSMC) as the Taiwan-based foundry house has begun to ramp up production of A8 processors and is likely to continue to fabricate the vendor's A9 CPUs in 2015, according to industry sources.

Although TSMC appears to have lost Qualcomm's 14nm chip orders to Samsung Electronics, TSMC will win Apple's A9 processor orders with its 16nm process, explained the sources.

TSMC's 16nm FinFET and 16nm FinFET Plus processes are expected to enter volume production in the second half of 2015, said the sources.

A Digitimes earlier report indicated that TSMC will snap up Apple's A9 processor orders with its 16nm FinFET Plus node.

The 16nm processes combined with the 20nm process will serve as TSMC's growth drivers over the next three years, TSMC has said.