Method for creating and maintaining a reducing atmosphere in a f

Details Method for creating and maintaining a reducing atmosphere in a f Method for creating and maintaining a reducing atmosphere in a f

1997-06-05

2000-08-08

Patel, Nimeshkumar D.

Electric lamp and discharge devices

Discharge devices having a multipointed or serrated edge...

313495, 313547, 313549, 313553, 313559, H01J 102, H01J 162, H01J 6304, H01J 1722

Patent

active

061006270

ABSTRACT:
A Field Emitter Device (FED) having a substantially reducing atmosphere is described. The atmosphere in a FED can be maintained substantially free of oxidizing gases and includes a partial pressure of hydrogen between about 1.times.10.sup.-7 millibar (mbar) and 1.times.10.sup.-3 mbar. In one embodiment, a non-evaporable getter material previously charged with hydrogen gas is placed inside the FED before the FED is sealed. The non-evaporable getter material can be charged by exposure to hydrogen gas at a pressure between about 1.times.10.sup.-4 and about 2 bar. Subsequently, the components forming the FED are sealed, and the FED is evacuated and hermetically sealed to the outside atmosphere.

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