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Ceramic Packages / Ceramic Substrates

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)
A440 A443 A473 AO610W AO700 AO800 A476 AN242 AN276 AlN170 AlN200 AlN230 GL570 GL580 GL773
Black purple Black White Light pink Gray Gray White Black Light gray Gray Gray Gray White White 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 Not applicable 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 
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
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
- - 8.5 9.0 9.2 9.4 - 8.6 8.6 - - - 5.7 6.1 5.8
24 5 5 9 6 4 4 1 1 3 3 3 3 4 5
- - 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
14 18 18 17 21 16 24 150 170 170 190 200 2.8 2.0 1.9
400 460 400 460 620 740 350 400 400 450 400 350 200 270 280
310 310 270 281 315 300 320 320 320 320 320 320 128 103 95
W, Mo W, Mo W, Mo CuW,Mo Mo CuW, Mo - W W - - - Cu Cu Cu
*Representative values may vary and are subject to change.

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