Importance

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Abstract

A semiconductor substrate processing method includes: a peeling layer forming step of forming a peeling layer by irradiating a first semiconductor substrate with a laser beam having a wavelength capable of passing through the first semiconductor substrate while positioning a focal point of the laser beam within the first semiconductor substrate; a second semiconductor substrate forming step of forming a second semiconductor substrate by epitaxial growth on an upper surface of the first semiconductor substrate after performing the peeling layer forming step; a peeling step of peeling off the first semiconductor substrate from the peeling layer; and a grinding step of grinding and removing the first semiconductor substrate after performing the peeling step.

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First Claim