EP 0838832 A1 19980429 - Method for fabricating a vacuum field emission device and apparatuses for performing this method
Title (en)
Method for fabricating a vacuum field emission device and apparatuses for performing this method
Title (de)
Verfahren zur Herstellung einer Vakuumfeldemissionsvorrichtung und Einrichtungen zur Durchführung dieses Verfahrens
Title (fr)
Procédé de fabrication d'un dispositif à émission de champ sous vide et appareils pour la mise en oeuvre de ce procédé
Publication
Application
Priority
FR 9613127 A 19961028
Abstract (en)
The method involves positioning, sealing (8), returning the device to the atmosphere, putting under vacuum and drying after which the getter (50, 51) is hydrogenated and the device closed. The getter may be introduced after sealing and return to the atmosphere or simply after sealing. Following absorption of hydrogen, the device is returned to normal temperatures and may be operated for a period to degas the phosphors during a re-pumping stage before closure. The getter may advantageously be kept cool until hydrogenation, then activated by inductive heating. The getter is zirconium or titanium with either one from vanadium, manganese, iron, cobalt, nickel or chromium or two from vanadium, manganese, iron, cobalt and chromium.
Abstract (fr)
Procédé de fabrication d'un dispositif à émission de champ sous vide et appareils pour la mise en oeuvre de ce procédé. Selon l'invention, on assemble, sous vide ou sous atmosphère contrôlée, les éléments du dispositif (2). Celui-ci comprend en outre au moins un getter (50, 51). L'étape d'assemblage comprend une étape de positionnement des éléments, une étape d'étuvage et une étape de scellement du dispositif. Chaque getter est hydrogéné après l'étuvage. Application à la fabrication d'écrans de télévision. <IMAGE>
IPC 1-7
IPC 8 full level
H01J 9/39 (2006.01); H01J 9/18 (2006.01); H01J 9/38 (2006.01)
CPC (source: EP US)
Citation (search report)
- [DA] WO 9601492 A1 19960118 - GETTERS SPA [IT]
- [A] US 3552818 A 19710105 - BENDA DAVID
Designated contracting state (EPC)
DE GB IT
DOCDB simple family (publication)
EP 0838832 A1 19980429; EP 0838832 B1 20020102; DE 69709827 D1 20020228; DE 69709827 T2 20020829; FR 2755295 A1 19980430; FR 2755295 B1 19981127; JP H10255660 A 19980925; US 6077141 A 20000620
DOCDB simple family (application)
EP 97402526 A 19971024; DE 69709827 T 19971024; FR 9613127 A 19961028; JP 30949397 A 19971027; US 95536397 A 19971021