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Ceramic PCB
【Brief】:This is a type of Ceramic PCB for the application of LED. It's a 2 Layer board at 0.8mm thick.
The base laminate is from ITEQ, Solder mask and silkscreen from Taiyo. It's fabricated per IPC
6012 Class 2.
【Series】:Ceramics PCB

Alumina Ceramics Technical  Parameter:


Alumina Ceramics Technical  Parameter
Alumina Content   80-85% 90-96% > 99.5% 99%
General Application  

Lower Cost 

Electrical& Mechanical

High Strength, 

Wear Resistant, 

Electronic, Insulating, 

Mechanical, 

Structural & Metalizing

Extremely High Purity, 

Temperature & Strength; 

Excellent Corrosion 

& Wear Resistance

Porous, Easily 

Degassed 

& Machinable

Porosity % 0-.05 0-.05 0-.05 Variable
Density gm/cm3 3.45-3.50 3.55-3.75 3.75-3.95 2.4
Flexural Strength kpsi 35.0-40.0 40.0-50.0 50.0-55.0 -
Comprehensive Strength kpsi 260 > 300.0 > 300.0 -
Tensile Strength kpsi 15.0-20.0 20.0-28.0 20.0-28.0 -

Linear Coefficient 

of Thermal Expansion

(cm/cm/°C) 25-300°C 25-700°C

5.9X10-6 6.5X10-6

6.3X10-6 7.0X10-6 6.5X10-6 7.5X10-6

6.5X10-67.5X10-6

 

Dielecctric Constant

 at 25°C

1 MH 10 MH 8.5-8.9 8.4-8.8 9.2-9.8 9.0-9.6 9.5-9.9 9.3-9.7 -
Dielectric Strength Volt/mil 200 225 225 -
Te Value °F °C 1472 800 > 1832 > 1000 > 1832 > 1000 > 1832 > 1000

Thermal Conductivity

 at 25°C

cal/sec/cm2/cm/°C .03-.04 .04-.06 .07-.08 -
Thermal Shock   Good Good Good Good
Safe Use Temperature °F °C 2550 1400 3000-3100 1650-1700 3275 1800 3275 1800


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