CeramTec Ceramtape GC Glass Ceramic

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CeramTec Ceramtape GC Glass Ceramic
Categories:	Ceramic; Glass; Glass Ceramic
Material Notes:	LTCC (Low Temperature Cofired Ceramic) is a new type of ceramic film developed by CeramTec AG's Electronics division. With the aid of these ceramics and their almost shrinkage-free sintering process, highly complex multilayer assemblies for electronic applications are possible. Apart from the automotive sector, LTCC is also ideally suited for the up-and-coming Bluetooth applications, medical apparatus, and consumer electronics. In the automotive sector, it is used for motor-management and ABS-systems. Ceramtape GC is a glass ceramic made of alumina and anorthite.
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Physical Properties	Original Value	Comments

Bulk Density	1.63 - 1.93 g/cc	Green
Density	2.87 - 2.97 g/cc	Fired
Thickness	40.0 - 60.0 microns	PET
	324 - 396 microns	Blank on PET

Mechanical Properties	Original Value	Comments
Flexural Strength	>= 170 MPa

Electrical Properties	Original Value	Comments
Volume Resistivity	>= 1.00e+14 ohm-cm
Dielectric Constant	7.3 - 8.5 @Frequency 1e+6 Hz
Dielectric Strength	>= 100 kV/mm
Dissipation Factor	<= 0.0020 @Frequency 1e+6 Hz

Thermal Properties	Original Value	Comments
CTE, linear	4.90 - 5.70 µm/m-°C
Thermal Conductivity	1.20 - 3.20 W/m-K
Shrinkage	17.5 - 18.5 %	2-layer Laminate; z-direction
	20.5 - 21.5 %	2-layer Laminate; x-direction
	20.9 - 21.9 %	2-layer Laminate; y-direction

Descriptive Properties
Cooling Rate (K/min)	1 to 6	Firing Conditions
Dwell Time at Peak Temperature (min)	10 to 40	Firing Conditions
Heating Rate (K/min)	1 to 4	Firing Conditions
Laminating Pressure (kg/cm³)	50-130
Laminating Temperature (°C)	30-80
Laminating Time (min)	0.5-3
Peak Temperature (°C)	880-920	Firing Conditions

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CCERA969 / 107569

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