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Material Properties

Kyocera develops and provides a wide variety of ceramics for package applications. Material properties of typical multilayer ceramics are as follows:

CERAMIC MATERIAL OPTIONS ELECTRICAL THERMAL MECHANICAL CONDUCTOR MATERIAL
Dielectric Constant Dissipation Factor
(x10E-4)
CTE(ppm/K)
(RT-400oC)
Thermal Conductivity
(W/mK)
Flexural Strength
(MPa)
Young's Modulus of Elasticity
(GPa)
1MHz 2 GHz 1MHz 2 GHz
Al2O3 A473 9.1 8.5 5 10 6.9 18 400 270 W, Mo
A440 9.8 _ 24 _ 7.1 14 400 310 W, Mo
A443 9.6 _ 5 _ 6.9 18 460 310 W, Mo
AO600 9.0 8.8 10 21 7.2 15 400 260 CuW
AO630 9.3 9.1 5 23 7.0 16 460 275 CuW
AO700 9.4 9.2 6 6 7.2 21 620 315 Mo
AlN AN242 8.7 8.6 1 170 4.7 150 400 320 W
LTCC GL940 _ 18.7 _ 2.5 10.7 3.5 220 188 Ag
GL950 _ 9.4 _ 14 8.5 4.1 400 173 Ag
GL330 7.8 7.7 4 5 8.2 4.3 400 178 Cu
GL570 5.6 5.7 3 7 3.4 2.8 200 128 Cu
GL771 5.3 5.2 8 36 12.3 2.0 170 74 Cu

Note: Material characteristics listed above are typical values. Values may change upon further improvement or modification of materials and manufacturing processes.

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