Are FinFETs too Expensive for Mainstream Chips?
One of the most common things I hear now is that the majority of the fabless semiconductor business will stay at 28nm due to the high cost of FinFETs. I wholeheartedly disagree, mainly because I have been hearing that for many years and it has yet to be proven true. The same was said about 40nm since 28nm HKMG was more expensive, which is one of the reasons why 28nm poly/SiON was introduced first.
Let’s face it, the mobile SoC business drives the leading edge semiconductor processes now and that leaves a large wake of capacity that has already been ramped and paid for. The logical next step is for the foundries to further optimize that capacity for cost and power to enable the next wave of cheap battery powered chips.
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