| 摘要 |
A method for manufacturing a substrate of a semiconductor device is provided, which comprises a step of forming a fragile layer in a semiconductor substrate by irradiating the semiconductor substrate with ion species, a step of forming a bonding layer over the semiconductor substrate, a step of bonding the semiconductor substrate and a substrate having an insulating surface with the bonding layer interposed therebetween, a step of separating the semiconductor substrate with a semiconductor layer left over the substrate having the insulating surface by heating at least the semiconductor substrate, and a step of reprocessing the semiconductor substrate from which the semiconductor layer is separated.
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