Electric lamp and discharge devices – With temperature modifier – For lead-in-seal or stem protection
Patent
1991-06-20
1992-09-22
Hille, Rolf
Electric lamp and discharge devices
With temperature modifier
For lead-in-seal or stem protection
357 55, 357 52, 357 31, 357 32, 313309, 313366, H01L 2348, H01L 2944
Patent
active
051501929
ABSTRACT:
A field emitter structure is disclosed which comprises: a substrate selec from the group consisting of a semi-insulating substrate and an insulating substrate, the substrate having first and second surfaces and at least one hole therethrough; a first conducting layer disposed on the first surface of the substrate and having at least one aperture aligned with an associated at least one hole in the substrate, the at least one aperture of the first conducting layer comprising an extraction electrode; and a second conducting layer disposed on the second surface and projecting into the at least one hole in the substrate and into the at least one associated aperture of the first conducting layer and forming at least one associated apex inside the at least one hole, the at least one associated apex comprising an associated electron field emitter. In a second embodiment of the invention, a conducting substrate is substituted for the insulating or semi-insulating substrate, a first insulating layer is disposed between the first surface of the conducting substrate and the first conducting layer, and the second conducting layer disposed on the second surface also projects through at least one associated aperture of the first insulating later.
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Gray Henry F.
Greene Richard F.
Hille Rolf
Jameson George
McDonnell Thomas E.
Ostrowski David
The United States of America as represented by the Secretary of
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