Apple Inc.

Leybold Optics Gmbh

Rudolf Beckmann

Walter Zultzke

Werner Weinrich

Markus Fuhr

Sabine Nolker

Michael Geisler

Markus Kress

Thomas Merz

Mario Röder

A break resistant sapphire plate and a corresponding production process. The sapphire plate may include a planar sapphire substrate, and at least one shock absorbing layer arranged on a surface of the substrate. The shock absorbing layer may have a thickness of between 0.1% to 10% of the thickness of the substrate. The production process for producing the sapphire plate may include providing a planar sapphire substrate, and coating at least one surface of the substrate with a shock absorbing layer. The shock absorbing layer may include a layer thickness between 0.1% to 10% of the thickness of the substrate.

Break resistant and shock resistant sapphire plate

A surface-tensioned sapphire plate and a corresponding manufacturing process. The plate may include a planar sapphire substrate and at least one layer disposed on the surface of the substrate for tensing the substrate. The layer may include at least 50 wt.-% of aluminum oxide (Al2O3). The manufacturing process for producing of a sapphire plate may include providing a planar sapphire substrate, and coating at least one surface of the substrate with a layer tensing the substrate. The layer may include at least 50 wt.-% of aluminum oxide (Al2O3).

Surface-tensioned sapphire plate

The invention relates to a plasma source whose plasma is ignited by an electric voltage. To be able to carry out the ignition at relatively low voltages, a plate () provided with holes () is provided beneath a plasma volume (), which is disposed above a wall () of a plasma chamber (). Through this plate () an ignition volume () is formed beneath the plasma volume () with a higher pressure than in the plasma volume (), in which the plasma ignites first. The ignition is subsequently propagated through the holes of the plate () into the plasma volume ().

Plasma source with reliable ignition

Growing community of inventors

Hammersbach, Germany

Rudolf Beckmann