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:
Aug. 08, 2000
Filed:
Jun. 02, 1998
Shoei Kurosaka, Kanagawa, JP;
Hiroshi Inagaki, Kanagawa, JP;
Shigeki Kawashima, Kanagawa, JP;
Junsuke Tomioka, Kanagawa, JP;
Komatsu Electronic Metals Co., Ltd., Kanagawa, JP;
Abstract
An object of the invention is to provide a single crystal clamping device and a single crystal supporting method. The single crystal clamping device does not become inclined and does not vibrate, and the center of the single crystal clamping device is congruous to the center of the growing single crystal. An apparatus for pulling up single crystals of the present invention, comprises: a single crystal pulling up wire for pulling up a seed crystal immersed in a melt of a raw material; a single crystal clamping device for clamping one end of the single crystal grown beneath the seed crystal; a wire-winding mechanism fixed on the single crystal clamping means and winding up the single crystal pulling up wire so as to adjust a speed of the single-crystal pulling up wire corresponding to the ascending/descending speeds of the single crystal clamping device; a pulling up wire-load cell for detecting the load applied on the crystal; and a summation load cell for measuring the combined load applied on the crystal pulling up wire and the single crystal clamping device.