作者: Hiroshi Nambu , Hirokazu Iwata , Takashi Satoh
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摘要: A large sized bulk crystal is produced which allows to cut out a practical size of substrate. The gallium nitride has features in length L c-axis 9 mm or more, diameter d cross section orthogonal the 100 μm, and ratio L/d 7 more. By enlarging this elongated needle-like crystal, with volume can be produced,