Balzers Aktiengesellschaft

Solems (s.a.)

Thierry Emeraud

Jacques Schmitt

Emmanuel Turlot

Alain Ricaud

Jean-Marie Siefert

A field emission device has a basic substrate whose surface is coated with a conductive layer that forms an electrode. A field emission emitter which is formed as a micro-tip, is electrically connected to the electrode. Between the micro-tip and the electrode, a current limiting resistive silicon film is arranged and the resistivity of the silicon film is adjusted to be in a value ranging from about 10.sup.2 to about 10.sup.5 .OMEGA.cm by an n- or p-dopant. The silicon film contains an alloying element which would be able to form a silicon ceramic if used in a stoichiometric amount but would not be able to dope the silicon.

Field emission device

An apparatus for plasma treating workpieces in vacuum includes a stack of plasma chambers (20). Handling of workpieces to and from the plasma chambers of the stack is performed in parallelism by one handling device and through lateral handling openings of the plasma chambers. The handling device is rotatable around an axis parallel to the handling openings of the plasma chambers and comprises transport apparatus simultaneously movable radially with respect to the axis of rotation towards and from the handling openings.

Plasma treatment apparatus and method for operating same

The specification discloses a photovoltaic device comprising a transparent, electrically insulating substrate, a plurality of photoelectric conversion elements using thin-layer technology, disposed as a stack on the substrate, these photoelectric conversion elements comprising a layer of material forming an opaque electrode traversed by cuts or openings, the latter advantageously exhibiting a groove shape which is elongate in a transverse direction of the cell and forming between them bands of material which are favorably oriented in the direction of the photogenerated current lines. A reinforced insulation of the cuts by a protective shoulder between layers may be provided. The invention permits partial-transparency solar cells or modules to be obtained.

Growing community of inventors

Bures-sur-Yvette, France

Thierry Emeraud