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Thermally Conductive
Metal Composite
A cost-effective process allowing tight tolerances without machining
and provides high-volume assembly yields for electronics packaging applications
Ceramics Process Systems Corporation, CPS, is the World Leader in providing
AlSiC thermal management materials and electronic packaging designs and
products for the microelectronics and power electronics industries.
AlSiC (Aluminum Silicon Carbide), a metal-matrix composite from CPS, is
said to be ideal for thermal management engineering of high-flux LEDs,
such as signal lamps, back lighting for signs, low-profile luminaries,
task lighting, and display lighting.
The material's high thermal conductivity (200 W/mK) lets it achieve maximum
brightness in LED lamps at the lowest possible operating temperature.
Unlike copper and aluminum metals that have high thermal-expansion values,
AlSiC has a low coefficient of thermal expansion (CTE). This minimizes
thermally induced stress and reduces failures of delamination and cracking.
This reduction improves LED reliability. With a compatible CTE value,
the need for thermal stress compensating interface layers is also eliminated.
A net-shape fabrication process produces the material and fabricates product
geometry, including throughhole and threaded-hole features. This cost-effective
process allows tight tolerances without machining and provides high-volume
assembly yields.
The casting process also simplifies use of high thermal conductivity inserts
(>1,000 W/mK) for thermal dissipation.
The CPS AlSiC fabrication process not only produces the composite material
but also fabricates the product geometry for a cost-efficient, highly
manufacturable product. This process allows competitive pricing with other
material choices while providing exceptional thermal management in a light-weight,
high-strength, high-stiffness product.
See more at CPS, including a non-thermoplastic, injection molding process
for the forming of ceramic and metal particulate bodies. The process has
many advantages over thermoplastic injection molding processes.
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Ceramics Process Systems
Ceramics Process Systems, 111 S. Worcester St., Chartley, MA 02712, Contact:
CPS Corp. Mark A. Occhionero - Sales and R&D Sr. Scientist, Tel: 508-222-0614
ext. 42,
E-mail: marko@alsic.com
You can see CPS at the next IMAPS
2005 Trade Show in Philadelphia
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