The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 19, 2023
Filed:
Mar. 23, 2022
Applicant:
Tdk Corporation, Tokyo, JP;
Inventors:
Katsumi Kawasaki, Tokyo, JP;
Jun Arima, Tokyo, JP;
Minoru Fujita, Tokyo, JP;
Jun Hirabayashi, Tokyo, JP;
Assignee:
TDK CORPORATION, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C30B 13/18 (2006.01); C30B 15/16 (2006.01); C30B 15/30 (2006.01); C30B 15/20 (2006.01); C30B 29/16 (2006.01);
U.S. Cl.
CPC ...
C30B 15/16 (2013.01); C30B 15/20 (2013.01); C30B 15/30 (2013.01); C30B 29/16 (2013.01);
Abstract
In a crystal manufacturing method, first, a feedstock including a tapered tip portion is disposed above a crystal growth region. Then, a side surface of the tip portion is selectively heated and melted by radiant heat traveling diagonally upward while a shape of the tip portion is maintained, and the side surface of the tip portion is physically connected to an upper surface of the crystal growth region by a material melted from the side surface. In a crystal manufacturing apparatus, the radiant heat for melting the feedstock is radiated from an electric resistance heater.