Patent ID: 7972940
Filing Date: 2011-07-05
Classification: B28D,H01L,Y10T

Abstract:
1. A method of wafer processing, comprising: cutting a peripheral edge of a wafer along a number of cut lines oriented in a first direction to create a number of blade entry edge surfaces oriented in the first direction and substantially perpendicular to a number of dicing paths oriented in a second direction substantially perpendicular to the first direction, wherein at least one of the number of cut lines oriented in the first direction is unaligned with at least one of a number of dicing paths oriented in the first direction; cutting the peripheral edge of the wafer along a number of cut lines oriented in the second direction to create a number of blade entry edge surfaces oriented in the second direction and substantially perpendicular to the number of dicing paths oriented in the first direction; and dicing the wafer along the number of dicing paths oriented in the first direction by cutting through the created number of blade entry edge surfaces oriented in the second direction at a substantially perpendicular angle.