Patent · US Active

Device for producing a block of crystalline material with modulation of the thermal conductivity

US8172944B2 · kind B2 · utility

0Cited by

3References

17Claims

0Family size

Assignee

COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES · FR

Inventors

Florence Servant · Échirolles, FR
Denis Camel · Chambéry, FR
Benoit Marie · Moissy-Cramayel, FR
Damien Ponthenier · Champagnier, FR

Key dates

Filing date	Jul 3, 2008
Grant date	May 8, 2012
Priority date	—
Expiry date	Dec 8, 2030

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T117/1092
WIPO fieldSurface technology, coating
WIPO sectorChemistry

Abstract

The device for producing a block of crystalline material from a bath of molten material comprises a crucible having a bottom and heat extraction means arranged under the crucible. It also comprises means for modulating the thermal conductivity fitted between the bottom of the crucible and the heat extraction means. The means for modulating the thermal conductivity comprise a plurality of plates made from thermally conducting material of low emissivity, parallel to the bottom of the crucible, and means for moving said plates closer to and away from one another.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.