Method for producing single crystal

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 10329686
APP PUB NO 20170327966A1
SERIAL NO

15535578

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Abstract

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A manufacturing method of a monocrystal includes: a shoulder-formation step to form a shoulder of the monocrystal; and a straight-body-formation step to form a straight body of the monocrystal, in which, in the shoulder-formation step, providing that a distance from a lowermost portion inside the crucible to a top surface of the dopant-added melt is defined as H (mm) and a radius of the top surface of the dopant-added melt is defined as R (mm), the shoulder starts to be formed in a condition that a relationship of 0.4

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Patent Owner(s)

Patent OwnerAddress
SUMCO CORPORATION2-1 SHIBAURA 1-CHOME MINATO-KU TOKYO 105-8634

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Kubota, Toshimichi Tokyo, JP 38 306
Narushima, Yasuhito Tokyo, JP 41 147
Uto, Masayuki Tokyo, JP 9 27

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