US 12,404,600 B2
Fins on crucible or gussets on refractory lining for facilitating exclusion of impurities from a boule
Peter Cohen, Knoxville, TN (US); Troy Marlar, Knoxville, TN (US); and Mark Andreaco, Knoxville, TN (US)
Assigned to Siemens Medical Solutions USA, Inc., Malvern, PA (US)
Filed by Siemens Medical Solutions USA, Inc., Malvern, PA (US)
Filed on May 31, 2023, as Appl. No. 18/326,342.
Prior Publication US 2024/0401227 A1, Dec. 5, 2024
Int. Cl. C30B 15/10 (2006.01); C30B 15/14 (2006.01); C30B 29/16 (2006.01)
CPC C30B 15/10 (2013.01) [C30B 15/14 (2013.01); C30B 29/16 (2013.01); Y10T 117/1016 (2015.01); Y10T 117/1032 (2015.01)] 7 Claims
OG exemplary drawing
 
1. A furnace for growing a crystal, comprising:
a crucible having a melt therein, the crucible having right cylindrical inner surface;
a first baffle projecting radially inward from the right cylindrical inner surface at a first location and a second baffle projecting radially inward from the inner surface at a second location diametrically opposite the first baffle, wherein an amount by which the first baffle and the second baffle project radially inward from the right cylindrical inner surface is greatest at a bottom of the crucible and decreases with height to be flush with the right cylindrical inner surface at a top of the crucible, wherein a first transverse cross-section of the first baffle is different from a second transverse cross-section of the second baffle;
a heating element for generating heat in the melt; and
a rod for drawing the crystal from the melt at a seed location to grow the crystal.