Patent classifications
C30B11/008
THIN SILICON SUBSTRATE FABRICATION DIRECTLY FROM SILICON MELT
Disclosed herein are embodiments of systems and methods for making silicon substrates. The disclosed systems use a unique combination of induction heating and crucible materials to produce silicon substrates in short time periods. The disclosed methods are cost-efficient and time-efficient and can be used to obtain pure silicon substrates having a desirable thinness for commercial use.
System for manufacturing a crystalline material by directional crystallization provided with an additional lateral heat source
The crystallization system includes a crucible provided with a bottom and with side walls designed to contain the material to be solidified and a device for creating a main thermal gradient inside the crucible in a perpendicular direction to the bottom of the crucible. An additional inductive heating device is arranged at the level of the side walls of the crucible facing the liquid material and without overlapping with the solid phase. This additional inductive heating device is configured to heat a part of the crystalline material located in the vicinity of the triple contact line between the liquid material, the solidified material and the crucible so that the interface between the liquid material and the solidified material forms a convex meniscus in the vicinity of the triple contact line.
DEVICE AND METHOD FOR CENTRIFUGALLY SYNTHESIZING AND GROWING COMPOUND CRYSTAL
A device and method for centrifugally synthesizing and growing a compound crystal, which relate to the field of preparation of compound semiconductors. The device comprises a furnace body and a crucible in the furnace body, wherein a sealing groove is formed in the top of the crucible, a sealing cover matching the sealing groove is provided, and the crucible is connected to a centrifugal electric motor outside the furnace body by means of a crucible rod. The method comprises the steps of placing a raw material, assembling the device, sealing the crucible, performing centrifugal synthesis, and growing a crystal.