Patent ID: 9728458
Date: 2017-08-08
CPC Classifications: H01L

Claim:
1. A method of fabricating a semiconductor structure, comprising: forming a plurality of active components over a substrate; removing first portions of the substrate from an upper surface of the substrate at which the active components are located by forming trenches extending from the upper surface partially through the substrate at locations between adjacent active components of the plurality of active components; after forming the trenches, bonding a carrier wafer over the active components and covering the trenches with the carrier substrate; removing a second portion of the substrate and exposing the trenches by thinning the substrate, thinning the substrate comprising using one or more of a grinding process, a polishing process, and an etching process to remove a layer of material of the substrate having a thickness of about 500 μm or more from a lower surface of the substrate, the lower surface of the substrate opposite the upper surface of the substrate; transmitting laser radiation at a lasing wavelength in a range extending from about 475 nm to about 650 nm through the carrier wafer and weakening a bond between the substrate and the active components; and separating the carrier wafer from the substrate.