Patent ID: 9257339
Filing Date: 2016-02-09
CPC Classification: C30B,H01L,H01S

Claim Text:
1. A method comprising: providing a workpiece bearing a layer of additional material; introducing a plurality of particles through the layer of additional material to form a cleave region in the workpiece; applying energy to cleave a detached thickness of workpiece material including the layer of additional material, from a remainder of the workpiece, and forming a free standing intermediate structure that includes only the detached workpiece material and the layer of additional material; processing the layer of additional material of the intermediate structure; and bonding the processed layer of additional material to a substrate having a coefficient of thermal expansion approximately equal to a coefficient of thermal expansion of the layer of additional material, wherein mismatch between the layer of additional material and the workpiece material develops a level of stress lower than a threshold value sufficient to nucleate and propagate defects within the layer of additional material.