Electric lamp or space discharge component or device manufacturi – Process – With assembly or disassembly
Patent
1991-07-11
1993-05-18
Seidel, Richard K.
Electric lamp or space discharge component or device manufacturi
Process
With assembly or disassembly
445 50, 445 51, 437200, H01J 912
Patent
active
052117073
ABSTRACT:
A field emission cathode having a parallel array of individual electrically conductive rods of metal silicide or germanide in a silicon-based or germanium-based single crystal matrix. Each rod has an emission end exposed at one major surface of the cathode and an ohmic contact end exposed at an opposite major surface. In a preferred cathode, the matrix and rod materials are the constituents of a eutectic composition. The cathode is fabricated by a process involving producing a composite boule from a eutectic composition of a silicon-based or germanium-based material and a metal. The composite cathode body is cut from the boule so that the rods are generally normal to the major surfaces. Etching may be used to expose a uniform length of the rods at the emitting surface.
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Ditchek Brian M.
Gustafson John C.
Neifeld Mark A.
Craig Frances P.
GTE Laboratories Incorporated
Knapp Jeffrey T.
Seidel Richard K.
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