Title:
結晶性物質のブロックを製造するための装置および方法
Document Type and Number:
Japanese Patent JP2009522201
Kind Code:
A
Abstract:
A device for producing a block of crystalline material comprises a heat source (3) and a cooling system arranged to establish a thermal gradient in a crystallization crucible (1), silica plates arranged around an induction turn (10), and a removable felt arranged above the exchanger. The system comprises an exchanger (17), an adjustable source, an induction turn, and an electrically conducting induction susceptor (11) placed between the crucible and the induction turn. The induction turn is cooled by a coolant circulating within the induction turn. The device for producing block of crystalline material, comprises a heat source (3) and a cooling system arranged to establish thermal gradient in a crystallization crucible (1), silica plates arranged around an induction turn (10), and a removable felt arranged above the exchanger. The system comprises an exchanger (17), an adjustable source, an induction turn, and an electrically conducting induction susceptor (11) placed between the crucible and the induction turn. The induction turn is cooled by a coolant circulating within the induction turn. The susceptor is arranged in a thermally conducting material and an infra-red radiation absorbent in which the susceptor is made of graphite or silicon carbide. The susceptor comprises a support for the crucible, and low electric surface conductivity zones to reduce the heating of induction and to enhance the dissipation of heat of the crucible towards the induction turn. The low electric surface conductivity zones are consisted by holes, a material having a low electric conductivity than the susceptor material or a zone having a lower thickness than the susceptor. The crucible comprises a transparent bottom of amorphous silica without impurities. An independent claim is included for the production of a block of crystalline material.
Inventors:
Rowland, Einhouse
Francois, Rissard
Pascal, Riva
Francois, Rissard
Pascal, Riva
Application Number:
JP2008549034A
Publication Date:
June 11, 2009
Filing Date:
December 06, 2006
Export Citation:
Assignee:
APOLLON SOLAR
CYBERSTAR
EFD INDUCTION SA
CYBERSTAR
EFD INDUCTION SA
International Classes:
C30B28/06; C01B33/02
Domestic Patent References:
| JPS6418987A | 1989-01-23 | |||
| JPS63166711A | 1988-07-09 | |||
| JPH10259100A | 1998-09-29 | |||
| JP2005306669A | 2005-11-04 | |||
| JPH01142464U | 1989-09-29 | |||
| JP2001010810A | 2001-01-16 | |||
| JP2005336021A | 2005-12-08 | |||
| JPH06234590A | 1994-08-23 |
Foreign References:
| WO2004094704A2 | 2004-11-04 |
Attorney, Agent or Firm:
Kenji Yoshitake
Hidetoshi Tachibana
Yasukazu Sato
Hiroshi Yoshimoto
Yasushi Kawasaki
Hidetoshi Tachibana
Yasukazu Sato
Hiroshi Yoshimoto
Yasushi Kawasaki