Title:
DIELECTRIC CERAMICS COMPOSITION
Document Type and Number:
Japanese Patent JP3404220
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To obtain a dielectric ceramics compsn. capable of firing together with Ag and capable of ensuring further reduced size and enhanced performance of a high-frequency electronic circuit board and electronic parts each having a high relative dielectric constant and a high Q value in a high-frequency region.
SOLUTION: In this dielectric ceramics compsn., a 1st crystal phase consisting of Mg, Ti and O and a 2nd crystal phase consisting of Mg, Ti, B and O exist, the 1st and 2nd crystal phases account for ≥95vol.% of the amt. of this compsn. and the amts, of the 1st and 2nd phase are 25-95vol.% and 5-75vol.%, respectively, of the total amt. of the phases. The ratio (I104/I201) of the intensity I104 of the principal crystal phase (104 face) of MgTiO3 to the intensity I201 of the principal crystal phase (201 face) of (Mg,Ti)2(BO3)O in X-ray diffraction is 0.2-2.5.
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Inventors:
Shinji Isoyama
Hirofumi Toda
Shinjiro Shimo
Shinichi Enami
Hirofumi Toda
Shinjiro Shimo
Shinichi Enami
Application Number:
JP13517696A
Publication Date:
May 06, 2003
Filing Date:
May 29, 1996
Export Citation:
Assignee:
Kyocera Corporation
International Classes:
C04B35/46; H01B3/12; H01P7/10; H05K1/03; (IPC1-7): C04B35/46; H01B3/12; H01P7/10
Domestic Patent References:
| JP9315852A | ||||
| JP9235157A | ||||
| JP8268753A | ||||
| JP8104565A | ||||
| JP9315853A |