EP 0809854 A1 19971203 - A FIELD EMISSION CATHODE AND METHODS IN THE PRODUCTION THEREOF
Title (en)
A FIELD EMISSION CATHODE AND METHODS IN THE PRODUCTION THEREOF
Title (de)
FELDEMISSIONSKATHODE UND HERSTELLUNGSVERFAHREN DERSELBEN
Title (fr)
CATHODE A EMISSION DE CHAMP ET PROCEDES POUR LA REALISER
Publication
Application
Priority
- SE 9600209 W 19960215
- SE 9500554 A 19950215
- US 46782595 A 19950606
Abstract (en)
[origin: WO9625753A1] An improved field emission cathode and methods for fabricating such a cathode are disclosed. In the methods of the invention, the field emission cathode is made from at least one body containing a first substance. The method steps include a preparation of irregularities in an emitting surface of the body, adding to the emitting surface of the body ions of a second substance with a low work function, and modifying the emitting surface by inducing field emission in applying a variable electric field to the body and increasing the field strength in steps.
IPC 1-7
IPC 8 full level
H01J 9/02 (2006.01); H01J 1/304 (2006.01); H01J 29/04 (2006.01); H01J 31/12 (2006.01)
CPC (source: EP)
H01J 1/304 (2013.01); H01J 2201/304 (2013.01); H01J 2329/00 (2013.01)
Citation (search report)
See references of WO 9625753A1
Designated contracting state (EPC)
AT BE CH DE DK ES FR GB GR IE IT LI LU MC NL PT SE
DOCDB simple family (publication)
WO 9625753 A1 19960822; AT E197515 T1 20001111; AU 4737296 A 19960904; AU 689702 B2 19980402; CA 2212681 A1 19960822; CA 2212681 C 20011211; CN 1097836 C 20030101; CN 1174629 A 19980225; DE 69610902 D1 20001214; DE 69610902 T2 20010419; EP 0809854 A1 19971203; EP 0809854 B1 20001108; ES 2152513 T3 20010201; JP 3299544 B2 20020708; JP H11500259 A 19990106; MX 9706141 A 19980830
DOCDB simple family (application)
SE 9600209 W 19960215; AT 96903328 T 19960215; AU 4737296 A 19960215; CA 2212681 A 19960215; CN 96191941 A 19960215; DE 69610902 T 19960215; EP 96903328 A 19960215; ES 96903328 T 19960215; JP 52490096 A 19960215; MX 9706141 A 19970812