Fab 6 outputs 70,000 wafers a month, while Fab 14/14B output is stated at 220-250,000 wspm, which means up to 3,000 wafers were affected. Fab 14/14B is the most advanced fab, with 20nm and 16nm nodes. TSMC 16nm and 20nm customers include Apple, AMD, NVIDIA and Qualcomm. TSMC currently occupies an 11.6% share in global semiconductor manufacturing market.
Fab 14B is the one with the 16nm node. I wonder who's wafers were affected.