Patent ID: 9165831
Filing Date: 2015-10-20
Classification: H01L

Abstract:
1. A method comprising: forming a plurality of dicing channels in a front side of a wafer, the plurality of dicing channels comprising a depth at least greater than a desired final thickness of the wafer; filling the plurality of dicing channels with a fill material; removing a portion of the wafer from a back side of the wafer until the desired final thickness is achieved, wherein a portion of the fill material within the plurality of dicing channels is exposed on the back side of the wafer; depositing a continuous metal layer on the back side of the wafer; removing the fill material from within the plurality of dicing channels to expose the metal layer at a bottom of the plurality of dicing channels, the fill material is removed from the front side of the wafer; and removing, from the front side of the wafer, a portion of the metal layer located at the bottom of the plurality of dicing channels.