Process and apparatus for producing semi-conductor foils
AssigneeBayer Aktiengesellschaft
InventorsIngo Schwirtlich, Peter Woditsch
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Abstract
In the production of a semi-conductor foil by solidification of a liquid semi-conductor on a horizontal support, the improvement which comprises positioning a molding body on the horizontal support, supplying the liquid semi-conductor to the molding body, and effecting relative movement between the molding body and support in a direction parallel to the support. Thereby fault-free silicon foils can readily be produced.
Claims7
In the production of a semi-conductor foil by solidification of a liquid semi-conductor on a horizontal support, the improvement which comprises positioning a molding body on the horizontal support, supplying the liquid semi-conductor to the molding body, and effecting relative movement between the molding body and support in a direction parallel to the support, the wall thickness of the molding body, b, being related to the length of the molding body, a, by the equation:
- ##EQU2## wherein V.sub.Z /V.sub.K is the ratio of the velocity of movement V.sub.Z to the velocity of crystallization V.sub.K ;
- and d is the thickness of the foil.
Dependencies are inferred from the claim text.