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:
Sep. 12, 1989
Filed:
Feb. 26, 1988
Applicant:
Inventors:
Assignees:
Mitsubishi Monsanto Chemical Co., Ltd., Tokyo, JP;
Mitsubishi Chemical Industries, Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C30B / ;
U.S. Cl.
CPC ...
156624 ; 156D / ; 422102 ; 422104 ; 422249 ; 432264 ; 432265 ;
Abstract
In the boat growth method of the IIIb-Vb group compound, the quartz boat is tridymitized on at least the surface thereof so as to prevent wetting of the boat due to the melt of the compound and hence to enhance the yield of a single crystal.