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公开(公告)号：CA978253A
公开(公告)日：1975-11-18
申请号：CA171097
申请日：1973-05-02
Applicant: IBM
Inventor： FOSTER BETTY J , TUMMALA RAO R
Abstract: A method of making a gaseous discharge display and/or memory device in which no separate passivation step is required to protect the electrical conductors formed on a glass substrate. After a dielectric glass frit slurry is sprayed over the conductors and dried, the assemblage is fired in an oven to cause the dielectric to reflow and, when later cooled, to provide a smooth protective dielectric layer over the conductors. Applicants found that firing in a very wet atmosphere with neutral or oxidizing ambients causes the dielectric to reflow at a substantially lower temperature than it would in a similar but dry atmosphere. This desirably permits dielectrics of higher viscosity and consequently higher softening temperatures to now be used because the requisite firing temperature is reduced in the wet atmosphere. High viscosity dielectrics are preferred to minimize crazing of the magnisium oxide coating that is currently placed over the dielectric coating after the dielectric-substrate is cooled. Except for this reduction in firing temperature, these high viscosity dielectrics would have to be fired at temperatures over 600 DEG C., which undesirably causes warping of the soda-lime silica glass substrates currently available.
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公开(公告)号：FR2309484A1
公开(公告)日：1976-11-26
申请号：FR7600767
申请日：1976-01-08
Applicant: IBM
Inventor： FOSTER BETTY J , TUMMALA RAO R
Abstract: A low temperature glass frit seal composition and process employs a paste including particulate lead glass, an organic vehicle, and small amounts of finely divided TiO2. The TiO2 prevents attack by residual organic vehicle on the lead glass during sealing and adjusts the coefficient of thermal expansion to be compatible with the substrate glass.
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