Ceramic Packages

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
ELECTRICALTHERMALMECHANICALCONDUCTOR MATERIAL
Dielectric Constant Dielectric
Loss Angle
(x10E-4)
CTE(ppm/K)
(RT-400°C)
Thermal Conductivity
(W/mK)
Flexural Strength
(MPa)
Young's Modulus of Elasticity
(GPa)
1MHz 2GHz 1MHz 2GHz
Alumina
(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
AO610W 9.2 9.0 9 11 6.9 17 460 281 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
AO800 9.4 9.4 4 13 7.5 16 740 300 CuW, Mo
AlN AN242 8.7 8.6 1 170 4.7 150 400 320 W
LTCC GL330 7.8 7.7 4 5 8.2 4.3 400 178 Cu
GL952 7.7 7.9 1 15 8.3 1.8 250 119 Ag
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
GL773 5.7 5.8 5 23 11.7 1.9 280 95 Cu
  • Material characteristics mentioned above are typical values.
    These values may change upon further improvement or modification of these materials and processes.

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