No more than 500.
Generally speaking, how many 14nm chips can be produced in a wafer depends on what size silicon wafers are used, and also depends on the chip size designed by the design company. At present, high-end chips usually use 12-inch wafers, if it is the production of mobile phone chips, 70,000 square millimeters of total area, 100 square millimeters of chip area, to remove the cutting Angle and scrap rate, a wafer can be up to 500 14nm chips.