(19)
(11) EP 0 275 844 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
28.02.1990 Bulletin 1990/09

(43) Date of publication A2:
27.07.1988 Bulletin 1988/30

(21) Application number: 87830452.6

(22) Date of filing: 21.12.1987
(51) International Patent Classification (IPC)4: H01J 7/18
(84) Designated Contracting States:
DE FR GB IT NL

(30) Priority: 22.12.1986 IT 2280786

(71) Applicant: SAES GETTERS S.P.A.
I-20151 Milano (IT)

(72) Inventors:
  • Boffito, Claudio
    I-20017 Rho (Milano) (IT)
  • Giorgi, Ettore
    Milano 2 I-20090 Segrate (Milano) (IT)

(74) Representative: Adorno, Silvano et al
c/o SOCIETA' ITALIANA BREVETTI S.p.A. Via Carducci, 8
20123 Milano
20123 Milano (IT)


(56) References cited: : 
   
       


    (54) Non evaporable getter device incorporating a ceramic support and method for the manufacture thereof


    (57) A porous non-evaporable getter device is described which comprises a ceramic support, a layer of sintered non-evaporable getter material and an intermediate electrically conducting layer at least partially diffused into the ceramic support and into the porous sintered getter layer. There also is describ­ed a method for the manufacture of such a getter device in which the ceramic support is coated with a thin conducting film on which is electrically deposited a thicker metallic layer which in turn is covered, by electrophoresis, a mixture of a non-evaporable getter material and an antisintering agent. The support is finally sintered to obtain the desired porous getter device and it is then cooled.







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