Electric lamp or space discharge component or device manufacturi – Process – Electrode making
Patent
1996-06-07
1999-02-02
Ryan, Patrick
Electric lamp or space discharge component or device manufacturi
Process
Electrode making
445 24, H01J 902, H01J 130
Patent
active
058656596
ABSTRACT:
A gated electron-emitter having a lower non-insulating emitter region (42), an overlying insulating layer (44), and a gate layer (48A, 60A, 60B, 120A, or 180A/184) is fabricated by a process in which particles (46) are distributed over the insulating layer, the gate layer, a primary layer (50A, 62A, or 72) provided over the gate layer, a further layer (74) provided over the primary layer, or a pattern-transfer layer (182). The particles are utilized in defining gate openings (54, 66, 80, 122, or 186/188) through the gate layer. Spacer material is provided along the edges of the gate openings to form spacers (110A, 124A, 140, or 150B) but leave corresponding apertures (112A, 126A, 142, or 152) through the spacer material. The insulating layer is etched through the apertures to form dielectric openings (114, 128, 144, or 154) through the insulating layer. Emitter material is introduced into the dielectric openings to form electron-emissive elements (116B, 130A, 146A, or 156B) typically filamentary in shape.
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Cleeves James M.
Haven Duane A.
Knall N. Johan
Ludwig Paul N.
Macaulay John M.
Candescent Technologies Corporation
Knapp Jeffrey T.
Meetin Ronald J.
Ryan Patrick
LandOfFree
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