Patent ID: 11901232
Assignee: APPLIED MATERIALS, INC.
Field: Semiconductors (Electrical engineering)
Classification: CPC H | IPC H

Claim 7:
8. A method of singulating a semiconductor wafer, comprising:
determining an offset correction by laser scribing a first semiconductor wafer having a first mask thereon, the laser scribing forming one or more of the openings having an S-shaped pattern, and measuring scribing offsets in the first semiconductor wafer subsequent to removing the first mask by measuring an offset at a plurality of locations along the S-shaped pattern and determining an average offset, the average offset including both a translational offset and an angular offset;
forming a second mask above a second semiconductor wafer, wherein the second semiconductor wafer comprises a plurality of dies separated from each other by streets; and
patterning the second mask and second semiconductor wafer with a laser scribing process that utilizes a wafer map that has integrated the offset correction, wherein the patterning provides openings through the second mask and into the streets of the second semiconductor wafer.