Centrotherm Photovoltaics Ag

Günther Kummer

Wilfried Lerch

Johann Georg Reichart

Wilhelm Kegel

Reinhold Obst

A substrate holder having a plate element for receiving a substrate includes at least one recess in a first side and spacers in the at least one recess. At least one opening is fluidly connected to the recess and is connectable to an external gas delivery/exhaust unit. At least one notch or channel radially surrounds the recess. At least one opening is fluidly connected to the notch or channel and is connectable to an external gas delivery/exhaust unit. A circumferential web radially surrounds the recess and is located between the recess and the notch or channel. A first circumferential contact surface is formed on the upper side of the web and radially surrounds the recess, such that a substrate abutting against the first contact surface forms an enclosed chamber with the recess. A second circumferential contact surface radially surrounds the notch or channel.

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Ulm, Germany

Günther Kummer