发明名称 SILICON CARBIDE SINGLE-CRYSTAL SUBSTRATE AND METHOD FOR MANUFACTURING SAME
摘要 A silicon carbide single-crystal substrate includes a first surface, a second surface opposite to the first surface, and a peripheral edge portion sandwiched between the first surface and the second surface, A plurality of grinding traces are formed in a surface of the peripheral edge portion. A chamfer width as a distance from an outermost peripheral end portion of the peripheral edge portion to one of the plurality of grinding traces which is located on an innermost peripheral side of the peripheral edge portion in a direction parallel to the first surface is not less than 50 mum and not more than 400 mum. Thereby, a silicon carbide single-crystal substrate capable of suppressing occurrence of a crack, and a method for manufacturing the same can be provided.
申请公布号 US2014073228(A1) 申请公布日期 2014.03.13
申请号 US201314083003 申请日期 2013.11.18
申请人 SUMITOMO ELECTRIC INDUSTRIES, LTD. 发明人 OKITA KYOKO;ISHIBASHI KEIJI
分类号 B24B9/06 主分类号 B24B9/06
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