http://www.cwhdallas.com/weighted-baseplate/
Weighted Baseplate
Hybrid Electric Vehicle Power Systems Receive Major Upgrade
Hybrid Electric Vehicle Power Systems Receive Major Upgrade
A leading company specializing in the design and production of materials for electronic thermal management, now uses AlSiC (Aluminum Silicon Carbide), a metal matrix composite ideally matched for base plates material for insulated gate bipolar transistor (IGBT), used in power control, high-power traction, fly-by-wire applications, and Hybrid Electric Vehicle power systems.
The low isotropic coefficient of thermal expansion (CTE) value of AlSiC-9 (8 ppm/°C: 30 – 100°C) is compatible with the thermal expansion value of the substrate or die used in IGBT power modules. The AlSiC CTE match lowers the mechanical stresses on IGBT die and substrates that are introduced by thermal power cycling, improving dependability of substrate attachment and reducing die cracking failures.
The device compatible AlSiC CTE removes the need for stress compensation material layers which are required in Copper (CTE = 17ppm/°C) baseplate assemblies. Removal of stress compensation materials simplifies baseplate assembly and decreases thermal resistance for AlSiC systems, meaning AlSiC systems have equal or improved thermal dissipation over Copper baseplate assemblies.
In high power applications (> 1200 V/ 400 A), IGBT modules assembled with AlSiC baseplates are found to have a service reliability of many times more thermal power cycles over Copper equivalent systems.
AlSiC is a lightweight material (1/3 that of Copper), which makes it an ideal cooler material for the weight-sensitive IGBT applications. AlSiC has higher strength and stiffness than Copper, which, combined with its lightweight nature, makes AlSiC assemblies more tolerant to shock and vibration.
The CPS AlSiC near net-shape fabrication process both produces the composite material and fabricates the product geometry, creating the design of IGBT base plates with a dome profile. This geometry improves thermal interface contact with cold plates and coolers. CPS fabricates standard of 190 mm x 140 mm, 140 mm x 130 mm and 140 mm x 70 mm base plate formats (shown) as well as custom formats.
About the Author
About CPS Technologies Corporation
CPS Technologies Corporation is the worldwide leader in the design and high-volume production of metal matrix composites. CPS uses a net-shape fabrication process, including patented QuickSet™ injection molding and QuickCast™ infiltration. AlSiC components are used in applications in the wireless communications infrastructure, high-performance microprocessor, motor controller, and other microelectronic markets. CPS is a publicly traded company (symbol “CPSH”). CPS’ customers include Infineon, Siemens VDO, Continental Temic, Rockwell Automation, TI, Motorola, HP, Agilent and Amkor.
What is lighter tensore magnesium responce trucks or the destructo magnesium baseplate trucks!?
Not the graph that shows truck weights i'v seen it it doesn't show magnesium trucks.
they probably weigh about the same, deffinatly not enough to notice a differance.
CPS Technologies Corporation Announces 2010 Results
NORTON, MA--(Marketwire - 03/23/11) - CPS Technologies Corporation (OTC.BB: CPSH - News ) today announced revenue of $21 million and net income of $710 thousand or $0.06 per basic and diluted share for the fiscal year ended December 25, 2010. This compares with revenue of $13 million and net income of $562 million or $0.04 per basic and diluted share for the fiscal year ended December 26, 2009 ...
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