Commissariat a L'energie Atomique

Michel Levis

Robert Meyer

Jean-Charles Souriau

Jean-François Boronat

The invention concerns a device comprising at least one field effect electron source within a sealed structure, which encompasses an internal space that contains a reducing gas whose purpose is to prevent oxidation of the emissive material of the electron source, whereby the reducing gas is a gas with the formula NHwhere x=1 or 2 and y=3 or 4, and which is advantageously under a pressure of between 10and 10mbar. It also concerns manufacturing processes for such a device and apparatuses for implementing these processes.

Field emission device using a reducing gas and method for making same

A vacuum field emitter device is manufactured by assembling elements of the device, including at least one getter, under a vacuum or a controlled atmosphere. The assembly step includes a step in which elements are positioned, an oven drying step and a device sealing step. Each getter is hydrogenated after the oven drying. The manufacturing process has applications in the manufacture of television screens.

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Seyssinet-Pariset, France

Michel Levis