Patent ID: 8546244
Filing Date: 2013-10-01
Classification: H01L

Abstract:
1. A method of manufacturing a semiconductor device, comprising the steps of: (a1) attaching a front surface of a semiconductor wafer to a supporting member via a bonding material comprised of an ultraviolet curable resin, the semiconductor wafer having a semiconductor substrate, the front surface, a plurality of chip regions formed on the front surface, a dicing region formed between adjacent chip regions, and a rear surface opposite to the front surface, the supporting member being a glass plate having a higher transmittance of ultraviolet rays than the semiconductor substrate; (a2) radiating the ultraviolet curable resin through the supporting member, using ultraviolet rays, to cure the ultraviolet curable resin; (b) grinding the rear surface of the semiconductor wafer while the semiconductor wafer is fixed to the supporting member; (c) dividing the semiconductor wafer into the chip regions using a blade by cutting along the dicing region of the semiconductor wafer while the semiconductor wafer is fixed to the supporting member; (d) after the step (c), etching a side surface of each of the chip regions, using plasma etching gas or wet etching liquid, so as to remove a crushed layer formed in the step (c) on the side surface of each of the chip regions; and (e) after the step (d), attaching a tape to a rear surface of each of the chip regions via an adhesive material formed on the tape, and peeling off the chip regions from the supporting member so as to obtain a plurality of semiconductor chips.