Electric lamp and discharge devices – Discharge devices having a multipointed or serrated edge...
Patent
1990-07-16
1991-11-05
Yusko, Donald J.
Electric lamp and discharge devices
Discharge devices having a multipointed or serrated edge...
313310, 313336, 313553, 313554, H01J 0130
Patent
active
050633236
ABSTRACT:
Outgassed materials liberated in spaces between pointed field emitter tips and an electrode structure during electrical operation of a field emitter device are vented through passageways to a pump of gettering material provided in a separate space. The passageways may include channels formed through an insulating layer between a base for the field emitters, and the electrode structure, with the channels interconnecting adjacent spaces in a row direction. Where the electrode structure includes a gate electrode layer and an anode layer, similar channels may be formed through an insulator layer provided therebetween. The field emitters may be formed in an arrangement of rows and columns, with the spacing between the columns smaller than the spacing between the rows.
REFERENCES:
patent: 3112863 (1963-12-01), Brubacker et al.
patent: 3855499 (1974-12-01), Yamada et al.
patent: 4293790 (1981-10-01), Funk et al.
patent: 4410832 (1983-10-01), Smith et al.
patent: 4721885 (1988-01-01), Brodie
patent: 4766340 (1988-08-01), van der Mast et al.
Bardai Zaher
Forman Ralph
Longo Robert T.
Manoly Arthur E.
Rolph Randy K.
Denson-Low W. K.
Gudmestad Terje
Hughes Aircraft Company
Patel Ashok
Walder Jeannette M.
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