Dielectric ceramic material and multilayer ceramic substrate

Details Dielectric ceramic material and multilayer ceramic substrate Dielectric ceramic material and multilayer ceramic substrate

2007-03-13

2007-03-13

Group, Karl (Department: 1755)

Compositions: ceramic

Ceramic compositions

Devitrified glass-ceramics

C501S032000

Reexamination Certificate

active

11057218

ABSTRACT:
A dielectric ceramic material which is obtained by firing a raw material comprising an alumina powder and a glass powder containing at least SiO2and MgO, the dielectric ceramic material being characterized in that a ratio (MgAl2O4(311)/Al2O3(116)) in X-ray diffraction peak intensity of an MgAl2O4(311) to an Al2O3(116) is at least 0.5.

REFERENCES:
patent: 6753070 (2004-06-01), Mori et al.
patent: 6946415 (2005-09-01), Chikagawa et al.
patent: 8-188446 (1996-07-01), None
patent: 10-120436 (1998-05-01), None
patent: 11-012029 (1999-01-01), None

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