Silicon carbide substrate and method of manufacturing the same
AssigneeSumitomo Electric Industries, Ltd.
InventorsShin HARADA, Shinsuke FUJIWARA, Taro NISHIGUCHI
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AssigneeSumitomo Electric Industries, Ltd.
InventorsShin HARADA, Shinsuke FUJIWARA, Taro NISHIGUCHI
Estimating the term…
A silicon carbide substrate capable of stably forming a device of excellent performance, and a method of manufacturing the same are provided. A silicon carbide substrate is made of a single crystal of silicon carbide, and has a width of not less than 100 mm, a micropipe density of not more than 7 cm−2, a threading screw dislocation density of not more than 1×104 cm−2, a threading edge dislocation density of not more than 1×104 cm−2, a basal plane dislocation density of not more than 1×104 cm 2, a stacking fault density of not more than 0.1 cm−1, a conductive impurity concentration of not less than 1×1018 cm 3, a residual impurity concentration of not more than 1×1016 cm−3, and a secondary phase inclusion density of not more than 1 cm−3.
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A method of manufacturing a silicon carbide substrate, comprising the steps of:
Dependencies are inferred from the claim text.