A semiconductor wafer thinned by a stealth lasing process, and semiconductor dies formed therefrom. After formation of an integrated circuit layer on a semiconductor wafer, the wafer may be thinned by focusing a laser at discrete points in the wafer substrate beneath the surface of the wafer. Upon completion of stealth lasing in one or more planar layers in the substrate, a portion of the substrate may be removed, leaving the wafer thinned to a desired final thickness.
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