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:
Nov. 08, 2016
Filed:
Jan. 23, 2014
Shenzhen China Star Optoelectronics Technology Co., Ltd., Shenzhen, Guangdong, CN;
Xindi Zhang, Shenzhen, CN;
Kuan-Cheng Lee, Shenzhen, CN;
SHENZHEN CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD., Shenzhen, CN;
Abstract
A crucible heating apparatus includes a crucible, a metal barrel around the crucible, a heating wire wound between the metal barrel and the crucible, a measuring unit for measuring the position of the liquid level of a material in the crucible and a controller, and the apparatus is characterized in that the heating wire includes at least two subsections arranged along the longitudinal direction, and the controller controls the heating power of each subsection respectively, thus dividing the crucible into at least two corresponding temperature control zones. In such a manner, by disposing a plurality of subsections of the heating wire and the corresponding temperature control zones of the crucible, the temperature of each position of the crucible is accurately controlled. A crucible heating method is also provided.