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:
Mar. 23, 1999
Filed:
Jan. 29, 1998
Applicant:
Inventors:
Junsuke Tomioka, Hiratsuka, JP;
Hiroshi Inagaki, Hiratsuka, JP;
Ayumi Suda, Hiratsuka, JP;
Toshimichi Kubota, Hiratsuka, JP;
Assignee:
Komatsu, Ltd., Kanagawa, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B01D / ;
U.S. Cl.
CPC ...
117218 ; 117 15 ; 117 38 ; 117 39 ; 117202 ;
Abstract
The object of this invention is to provide a method and a device for manufacturing semiconductor single crystals by the CZ method in response to the increase in the weight of semiconductor single crystal produced. The necked portion formed beneath the reduced portion can be held and the single crystal under lifting can be re-melted.