Wacker-chemie Gmbh

Heliotronic Forschungs- Und Entwicklungsgesellschaft Fur

Gerhard Ast

Josef Dietl

Erhard Sirtl

Dirk Flottmann

Dieter Helmreich

Reinhard Wolf

Hans-Dieter Miller

There are a device and method for protecting semiconductor material, wherein semiconductor material is processed on a surface of stabilized ice made from ultrapure water and particles of semiconductor material.

Method and device for processing semiconductor material

Competitive current generation by the exploitation of solar energy requires cheap solar cells. A process is described which makes it possible to manufacture from silicon a base material for solar cells of this type in an economical manner and in large quantities. This is achieved by bringing silicon from a supply container into contact with a non-elemental lubricating melt, which is immiscible with silicon but will not wet silicon and has a melting point below that of silicon, and by drawing off a silicon film, sliding on this lubricating melt, and solidifying the silicon continuously by cooling to below its' melting point.

Process for making solar cell base material

Growing community of inventors

Emmerting, Germany

Gerhard Ast