Crystal growth inhibitor for glassy low dielectric inorganic...

Details Crystal growth inhibitor for glassy low dielectric inorganic... Crystal growth inhibitor for glassy low dielectric inorganic...

H - Electricity

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B

H01B 3/08 (2006.01) C03C 8/22 (2006.01) C03C 14/00 (2006.01) H01B 3/10 (2006.01) H01L 23/15 (2006.01) H05K 1/00 (2006.01) H05K 1/03 (2006.01)

Patent

CA 2051890

Abstract of the Disclosure A ceramic composition for forming a ceramic dielectric body having a dielectric constant of less than about 4.2 and a TCE of less than about 4.0 ppm/c. The composition comprises a mixture of finely divided particles of 25-50 weight percent borosilicate glass and 50-75 weight percent high silica glass and 1-25 weight percent sufficient of crystalline ceramic material to inhibit the formation of crystalline forms of silica. The high silica glass contains essentially 0.5-1 wt.% alumina, 1-5 wt.% B2O3 and approximately 95-98 wt.% SiO2. The mixture is fired at a temperature of less than 1000°C.

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