Vat Holding Ag

Oc Oerlikon Balzers Ag

Oerlikon Trading Ag, Trubbach

Tel Solar Ag

Markus Poppeller

Jacques Schmitt

Ulrich Kroll

Christoph Hollenstein

Juliette Ballutaud

Alan Howling

Arthur Büchel

Cédric Bucher

Marc Hübener

Cedric Bucher

A vacuum valve or door having a closure plate for closing an opening in a wall. The opening has opposing first and second longitudinal edges and shorter opposing first and second transverse edges. A sealing unit seals the closure plate against the wall in the closed position. The sealing unit includes a supporting frame having opposing first and second longitudinal legs and shorter opposing first and second transverse legs, on which supporting frame there is mounted on one side a circumferential closure plate seal and on the other side a circumferential wall seal. The supporting frame is secured to fastening points on the wall, with central portions of the first and second longitudinal legs being free with respect to the wall, or the supporting frame is secured to fastening points on the closure plate, with the central being free with respect to the closure plate.

Vacuum valve or vacuum door

A semi-conducting device has at least one layer doped with a doping agent and a layer of another type deposited on the doped layer in a single reaction chamber. An operation for avoiding the contamination of the other layer by the doping agent separates the steps of depositing each of the layers.

Method for producing semi-conducting devices and devices obtained with this method

Growing community of inventors

Feldkirch, Austria

Markus Poppeller