Patent ID: 9704748
Date: 2017-07-11
CPC Classifications: G03F,H01L

Claim:
1. A method of dicing a wafer, the method comprising: providing a wafer; and etching the wafer to singulate die between kerf line segments defined within an interior region of the wafer and to singulate a plurality of wafer edge areas between the kerf line segments and a circumferential edge of the wafer, wherein each one of the plurality of wafer edge areas is singulated by kerf lines that each extend between one of two endpoints of one of the kerf line segments and the circumferential edge of the wafer, wherein the kerf line segments comprise N parallel kerf line segments where N is an integer that is equal to or greater than 3, wherein one or more of the plurality of wafer edge areas are singulated by the kerf lines that each extend between the one of the two endpoints of every Mth one of the N parallel kerf line segments and the circumferential edge of the wafer, and wherein M is an integer that is equal to or greater than 2 and equal to or less than N.