Wacker-chemie Gmbh

Wacker-chemitronic Gesellschaft Fur Elektronik-grundstoffe Mbh

Matthaus Schantz

Franz Koppl

Dirk Flottmann

Reinhard Wolf

Friedrich Steudten

A device for protecting semiconductor material includes a support and a surface made of ice formed from ultrapure water. Semiconductor material is situated on this support surface.

Crushing of silicon on ultrapure ice

An apparatus for the optoelectronic classification of semiconductor materials, has a separating device 2 and a slide face 3, the angle of the slide face 3 to the horizontal being adjustable, and the separating device 2 and the slide face 3 each having a surface made of the semiconductor material to be separated. There is a radiation source 5, through the beam path of which the material to be classified falls, and a shape recognition device 6, which transmits the shape of the material to be classified to a control unit 7, which controls at least one diverter device 8.

Optoelectronic separation apparatus

A method for the treatment of semiconductor material in a liquid bath has the treatment based upon the occurrence of cavitation being brought about in the liquid bath. The semiconductor material is contacted with a cavitating liquid in order to clean fragments of the semiconductor material and to round fracture edges of the fragments.

Method for the treatment of semiconductor material

A method for the contamination-free comminution of semiconductor material cludes an apparatus by which the method is carried out. The method includes creating at least one liquid jet by applying pressure to a liquid and forcing it through a nozzle, and directing the liquid jet against the semiconductor material, so that it impinges on its surface at high velocity. The apparatus includes a container for receiving comminuted semiconductor material, at least one nozzle through which a liquid jet is directed at high velocity against the semiconductor material to be comminuted, a conveyor device for removing the comminuted semiconductor material from the container, means for releasing and interrupting the liquid jet, and means for positioning the nozzle and/or advancing the semiconductor material.

Growing community of inventors

Reut, Germany

Matthaus Schantz