Method For Manufacturing Semiconductor Device

Provided is a method of manufacturing a semiconductor device with improved manufacturing efficiency for the semiconductor device. The method of manufacturing a semiconductor device includes the steps of: (a) forming a circuit at a front surface side of a wafer (semiconductor wafer) having the front surface and a back surface opposite to the front surface; (b) grinding the back surface of the wafer that has a center part (first part) and a peripheral edge part (second part) surrounding a periphery of the center part in such a manner that the center part is thinner than the peripheral edge part; (c) attaching an upper surface (bonding surface) of a holding tape to the front surface of the wafer; and (d) separating the center part from the peripheral edge part by cutting a part of the center part with a blade (rotary blade) while the wafer is held by the first tape.