Multilayer ceramics substrate

Details Multilayer ceramics substrate Multilayer ceramics substrate

2007-12-10

2010-02-16

Xu, Ling (Department: 1794)

Stock material or miscellaneous articles

Composite

Of quartz or glass

C428S433000, C428S457000, C428S469000, C428S689000, C428S701000, C428S697000, C428S702000

Reexamination Certificate

active

07662477

ABSTRACT:
A highly reliable ceramics substrate which can sufficiently secure a bonding strength of a surface conductor in an initial state and after a lapse of time (e.g., after a PCT) is provided. The multilayer ceramics substrate has a surface conductor on at least one surface of a multilayer body constituted by a plurality of laminated ceramics substrate layers. A reaction phase formed by a reaction between a ceramics component in the ceramics substrate layers and a glass component in the surface conductor is deposited at an interface between the surface conductor and ceramics substrate layers. For example, an alumina filler in the ceramics substrate layers and Zn in the surface conductor react with each other, thereby forming ZnAl2O4as the reaction phase.

REFERENCES:
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patent: A-2005-285957 (2005-10-01), None
European Search Report issued May 27, 2009 for EP 07 02 4830.

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