| 摘要 |
The present invention provides a method for producing a Group III nitride compound semiconductor, which method permits only minimal reaction of the semiconductor with a hetero-substrate during epitaxial growth and induces no cracks in the Group III nitride compound semiconductor even when the semiconductor is cooled to room temperature. The method includes a buffer layer formation step for forming a gas-etchable buffer layer on the hetero-substrate, and a semiconductor formation step for epitaxially growing the Group III nitride compound semiconductor on the buffer layer through a vapor phase growth method, wherein at least a portion of the buffer layer is gas-etched during or after the semiconductor formation step.
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