Patent ID: 11929285
Assignee: SEMICONDUCTOR COMPONENTS INDUSTRIES, LLC
Field: Semiconductors (Electrical engineering)
Classification: CPC H | IPC H

Claim 13:
14. A method of singulating a plurality of die comprised in a substrate, the method comprising:
forming a plurality of die on a first side of the substrate;
thinning a second side of the substrate and forming an edge ring through the thinning;
forming a backside metal layer on the second side of the substrate;
applying a photoresist layer over the backside metal layer;
aligning the substrate using a plurality of alignment features comprised one of in the edge ring or on the photoresist layer;
patterning the photoresist layer along a die street of the substrate;
removing the backside metal layer located in the die street of the substrate, wherein the substrate is exposed through removal of the backside metal layer located in the die street; and
singulating the plurality of die comprised in the substrate through removing substrate material in the die street.