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

Claim 0:
1. A crystalline material processing method comprising:
temporarily bonding a rigid carrier to a first surface of a crystalline material comprising a semiconductor with an intervening adhesive material, wherein the crystalline material comprises a substrate having a subsurface laser damage region at a depth relative to the first surface, the rigid carrier has a modulus of elasticity of at least 20 GPa, and at least one of a maximum length or maximum width of at least a portion of the rigid carrier exceeds a corresponding maximum length or maximum width of the substrate; and
fracturing the crystalline material along or proximate to the subsurface laser damage region to yield a bonded assembly comprising the rigid carrier, the adhesive material, 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.