Device for making a silicon ribbon or of other crystalline...

Details Device for making a silicon ribbon or of other crystalline... Device for making a silicon ribbon or of other crystalline...

H - Electricity

01

L

H01L 31/18 (2006.01)

Patent

CA 2626063

The invention concerns a device comprising a crucible (1) having a base (2) and side walls. The crucible (1) comprises at least one lateral slot (4) arranged horizontally at a lower part of the side walls (3). The lateral slot (4) has a width greater than 50 mm and, preferably, ranging between 100 mm and 500 mm. The height (H) of the slot (4) ranges between 50 and 1000 micrometers. The crystalline material exits the crucible through the lateral slot (4) so as to form a crystalline ribbon (R). The method includes a step of contacting a crystallization nucleus with the material exiting through the lateral slot (4) and a step of moving horizontally the ribbon (R).

Le dispositif comporte un creuset (1) ayant un fond (2) et des parois (3) latérales. Le creuset (1) comporte au moins une fente (4) latérale disposée horizontalement à une partie inférieure des parois (3) latérales. La fente (4) latérale présente une largeur supérieure à 50mm et, de préférence, comprise entre 100mm et 500mm. La hauteur (H) de la fente (4) est comprise entre 50 et 1000 micromètres. Le matériau cristallin sort du creuset par la fente (4) latérale de manière à former un ruban (R) cristallin. Le procédé comporte une étape de mise en contact d'un germe de cristallisation avec le matériau sortant par la fente (4) latérale et une étape de déplacement horizontal du ruban (R).

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