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    • 91. 发明专利
    • IT1283484B1
    • 1998-04-21
    • ITMI961533
    • 1996-07-23
    • GETTERS SPA
    • CORAZZA ALESSIOBOFFITO CLAUDIOGALLITOGNOTTA ALESSANDROKULLBERG RICHARDFERRIS MICHAEL
    • B01J20/02H01J7/18H01J9/39
    • A method for forming a supported thin layer of non-evaporable getter (NEG) material and a getter device formed thereby are provided. A suspension comprised of non-evaporable getter (NEG) material particles in a dispersing medium is prepared. The NEG material particles in the suspension have a particle size not greater than about 150 mu m. The dispersing medium has an aqueous, alcoholic, or hydroalcoholic base and contains not more than about 1 wt % of organic compounds having a boiling temperature of at least about 250 DEG C. The ratio of the weight of the NEG material particles to the weight of the dispersing medium is between about 4:1 and about 1:1. A layer of the suspension is deposited on a carrier by a serigraphic technique. Next, the deposited layer is dried to evaporate volatile components of the dispersing medium and thereby form a dried deposit. Finally, the dried deposit is sintered under vacuum at a temperature between about 800 DEG C. and 1000 DEG C. with a surface of the dried deposit covered with a refractory material to inhibit scaling. Getter devices formed in accordance with this method also are provided.
    • 92. 发明专利
    • ITMI961533A1
    • 1998-01-23
    • ITMI961533
    • 1996-07-23
    • GETTERS SPA
    • CORAZZA ALESSIOBOFFITO CLAUDIOGALLITOGNOTTA ALESSANDROKULLBERG RICHARDFERRIS MICHAEL
    • B01J20/02H01J7/18H01J9/39
    • A method for forming a supported thin layer of non-evaporable getter (NEG) material and a getter device formed thereby are provided. A suspension comprised of non-evaporable getter (NEG) material particles in a dispersing medium is prepared. The NEG material particles in the suspension have a particle size not greater than about 150 mu m. The dispersing medium has an aqueous, alcoholic, or hydroalcoholic base and contains not more than about 1 wt % of organic compounds having a boiling temperature of at least about 250 DEG C. The ratio of the weight of the NEG material particles to the weight of the dispersing medium is between about 4:1 and about 1:1. A layer of the suspension is deposited on a carrier by a serigraphic technique. Next, the deposited layer is dried to evaporate volatile components of the dispersing medium and thereby form a dried deposit. Finally, the dried deposit is sintered under vacuum at a temperature between about 800 DEG C. and 1000 DEG C. with a surface of the dried deposit covered with a refractory material to inhibit scaling. Getter devices formed in accordance with this method also are provided.