Patent ID: 11901181
Assignee: WOLFSPEED, INC.
Field: Semiconductors (Electrical engineering)
Classification: CPC H  B  C | IPC B  C  H

Claim 19:
20. A crystalline material processing method comprising:
bonding a first rigid carrier to a first surface of a crystalline material comprising a semiconductor, wherein the crystalline material comprises a substrate having a subsurface laser damage region at a depth relative to a first surface of the substrate, the first rigid carrier having a modulus of elasticity of at least 20 GPa;
bonding a second rigid carrier to a second surface of the crystalline material, the second rigid carrier having a modulus of elasticity of at least 20 GPa; and
following the bonding steps, fracturing the crystalline material along or proximate to the subsurface laser damage region to yield a bonded assembly comprising the first rigid carrier and a portion of the crystalline material removed from the substrate, wherein the portion of the crystalline material removed from the substrate comprises a thickness of at least 160 microns.