(19)
(11) EP 0 539 365 A1

(12)

(43) Date of publication:
05.05.1993 Bulletin 1993/18

(21) Application number: 90916570.0

(22) Date of filing: 17.10.1990
(51) International Patent Classification (IPC): 
H01J 1/ 304( . )
H01J 9/ 02( . )
H01J 1/ 30( . )
(86) International application number:
PCT/US1990/005964
(87) International publication number:
WO 1992/002031 (06.02.1992 Gazette 1992/04)
(84) Designated Contracting States:
BE CH DE DK ES FR GB IT LI NL SE

(30) Priority: 18.07.1990 US 19900555213

(71) Applicant: International Business Machines Corporation
Armonk, N.Y. 10504 (US)

(72) Inventor:
  • ZIMMERMAN, Stephen, Michael
    Pleasant Valley, NY 12569 (US)

(74) Representative: Schuffenecker, Thierry 
Compagnie IBM France, Département de Propriété Intellectuelle
F-06610 La Gaude
F-06610 La Gaude (FR)

   


(54) STRUCTURES AND PROCESSES FOR FABRICATING FIELD EMISSION CATHODES