CRYSTAL DEVICE

PROBLEM TO BE SOLVED: To solve the problem that the reference signal generated by a crystal vibrator attenuates substantially in a wiring layer. SOLUTION: The crystal device 7 comprising a base body 1 which has mount parts 1a and 1b on both its top and reverse surfaces, the crystal vibrator 5 which...

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Bibliographic Details
Main Author OUCHI TAKUYA
Format Patent
LanguageEnglish
Published 16.05.2003
Edition7
Subjects
ARTIFICIAL STONE
BASIC ELECTRIC ELEMENTS
BASIC ELECTRONIC CIRCUITRY
CEMENTS
CERAMICS
CHEMISTRY
COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS
CONCRETE
ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR
ELECTRICITY
IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS
LIME, MAGNESIA
METALLURGY
REFRACTORIES
RESONATORS
SEMICONDUCTOR DEVICES
SLAG
TREATMENT OF NATURAL STONE
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Summary:PROBLEM TO BE SOLVED: To solve the problem that the reference signal generated by a crystal vibrator attenuates substantially in a wiring layer. SOLUTION: The crystal device 7 comprising a base body 1 which has mount parts 1a and 1b on both its top and reverse surfaces, the crystal vibrator 5 which is fixed to the mount part 1a on the top surface of the base body 1 through a fixing material 8, and a semiconductor element 6 which is mounted on the mount part 1b on the reverse surface of the base body 1 and performs temperature compensation of the crystal vibrator 5 is provided, and the base body 1 is a sinter containing a 25 to 80 wt.% Si component in terms of SiO2 , a 15 to 70 wt.% Ba component in terms of BaO, a 1.5 to 5 wt.% B component in terms of B2 O3 , a 1 to 30 wt.% Al component in terms of Al2 O3 , and a 0 to 30 wt.% Ca component in terms of CaO, the wiring layer 2 is formed of a metal material having <=2.5 μΩ.cm specific electric resistance, and the elasticity of the fixing material 8 is <=2.8 GPa.
Bibliography:Application Number: JP20010338988