Electric lamp and discharge devices – Discharge devices having a thermionic or emissive cathode
Patent
1998-04-30
2000-08-22
Patel, Vip
Electric lamp and discharge devices
Discharge devices having a thermionic or emissive cathode
313309, 313495, H01J 130, H01J 102
Patent
active
061077283
ABSTRACT:
An electrode (12 or 30) of an electron-emitting device has a plurality of openings (16 or 60) spaced laterally apart from one another. The openings can be used, as needed, in selectively separating one or more parts of the electrode from the remainder of the electrode during corrective test directed towards repairing any short-circuit defects that may exist between the electrode and other overlying or underlying electrodes. When the electrode with the openings is an emitter electrode (12), each opening (16) normally extends fully across an overlying control electrode (30). When the electrode with the openings is a control electrode (30), each opening (60) normally extends fully across an underlying emitter electrode (12). The short-circuit repair procedure typically entails directing light energy on appropriate portions of the electrode with the openings.
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Fahlen Theodore S.
Field John E.
Spindt Christopher J.
Candescent Technologies Corporation
Gerike Matthew
Meetin Ronald J.
Patel Vip
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