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A method for producing a single crystal of SiC

2025-07-29 03:222070下载
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A manufacturing method of a SiC single crystal includes a first growth process and a re-growth process. In the first growth process, a first seed crystal made of SiC is used to grow a first SiC single crystal. In the re-growth process, a plurality of growth steps is performed for (n−1) times. In a k-th growth step, a k-th seed crystal is cut out from a grown (k−1)-th SiC single crystal, and the k-th seed crystal is used to grow a k-th SiC single crystal (n≧2 and 2≰k≰n). When an offset angle of a growth surface of the k-th seed crystal is defined as θk, at least in one of the plurality of growth steps, the offset angle θk is smaller than the offset angle θk−1.


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