Ceramic Packages

Material Properties

Kyocera develops and provides an extensive range of advanced ceramic materials. The material properties of representative multilayer ceramics are shown below.

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Material Name
Color
Laminating Structure
Dissimilar Material Bonding
Characteristics
Applications
Electrical
Characteristics
Dielectric
Constant
1MHz
2GHz
Dielectric
Loss Tangent
(x1.0E-4)
1MHz
2GHz
Thermal
Characteristics
CTE (ppm/K)
(RT~400℃)
Thermal
Conductivity
(W/m・K)
Mechanical
Characteristics
Flexural
Strengh
(MPa)
Young's
Modules
of Elasticity
(GPa)
Co-Fired Conductor Material
Alminum Oxide (Al2O3) Aluminum Nitride (AlN) LTCC (Low Temperature Co-Fired Ceramics) Mullite
A440 A443 A473 AO610W AO700 AO800 A476 AN242 AN276 AlN170 AlN200 AlN230 GL570 GL580 GL773 ST300
Black purple Black White Light pink Gray Gray White Black Light gray Gray Gray Gray White White Green Grayish green
Applicable Applicable Applicable Applicable Applicable Applicable Not applicable Applicable Applicable Not applicable Not applicable Not applicable Applicable Applicable Applicable Applicable
Applicable Applicable Applicable Applicable Applicable Applicable Not applicable Applicable Not applicable Not applicable Not applicable Not applicable Not applicable Not applicable Not applicable Not applicable
General-
Purpose
Higher flexural
strength
Lower Transmission
Loss
Lower
Conductor Resistance
Higher flexural
strength
Higher Reflectivity
/ Flatness
Higher Thermal Conductivity Good Chip-level
Reliability
Miniaturization
/ Low Profile
Good Board-level
Reliability 
Lower CTE
General-
Purpose
Smaller surface mount
devices
High-frequency devices or
optical communication devices
Higher heat- generating devices
(light sources/optical communication)
Smaller quartz crystals RF / optical
communication
Higher heat-generating devices
(light sources/optical communication)
Cutting-edge
semiconductor
devices
Applications requiring embedded
functional elements
(multiplexers / filters)
Cutting-edge
semiconductor
devices
Space transformers
for memory
probe cards
9.8 9.6 9.1 9.2 9.4 9.4 9.4 8.7 8.8 8.5 8.5 8.5 5.6 6.2 5.7 10
- - 8.5 9.0 9.2 9.4 - 8.6 8.6 - - - 5.7 6.1 5.8 7.9
24 5 5 9 6 4 4 1 1 3 3 3 3 4 5 314
- - 10 11 6 13 - 170 - - - - 7 16 23 -
7.1 6.9 6.9 6.9 7.2 7.5 7.2 4.7 4.8 4.6 4.6 4.6 3.4 10.4 11.7 4.7
14 18 18 17 21 16 24 150 170 170 190 200 2.8 2.0 1.9 4.0
400 460 400 460 620 740 350 400 400 450 400 350 200 270 280 319
310 310 270 281 315 300 320 320 320 320 320 320 128 103 95 194
W, Mo W, Mo W, Mo CuW,Mo Mo CuW, Mo - W W - - - Cu Cu Cu CuMo/Mo
*Representative values may vary and are subject to change.

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