Alcatel Solves Thermal Issues Early with FloTHERM
Alcatel uses FloTHERM early in the design stage to address the cooling challenges of a new high speed optical networking switch.
Alcatel Uses FloTHERM
“The combination of FloTHERM and FloTHERM PACK enable us to quickly explore design variations and find the optimum solution at both the system and PCB levels.”
Alcatel 1678 Metro Core Connect
Learn More about FloTHERM
product overview: FloTHERM® is a powerful 3D computational fluid dynamics software that predicts airflow and heat transfer in and around electronic equipment, including the coupled effects of conduction, convection and radiation.
product overview: FloTHERM PACK automates the creation of simulation-based semiconductor packages, thermal characterization, and the key tasks in semiconductor package design.
The thermal management design challenge
The Alcatel 1678 Metro Core Connect (MCC), a high speed optical networking switch, provides 640 Gb/s capacity in one shelf. This switch features high switching capacity and high-density interfaces within a very compact package.
With power consumption running at levels of up to 2000 W per shelf and up to 140 W for each plug-in card, thermal management presented a major design challenge. The use of high speed optical transceivers and ASICs with restricted temperature ranges increased the difficulty of the design challenge.
Cooling issues are addressed at the start
The project team recognized that it needed to address the cooling issues starting from the very beginning of the project.
The team performed a shelf-level simulation with FloTHERM using air flow measurements to define environmental conditions. It built detailed and compact thermal simulation models of all relevant ASICs and of the optical transceivers using FloTHERM and FloTHERM PACK. Some of these models were provided by component suppliers.
Time and money is saved
The analysis results were used by the project team to optimize the component placement, maximize the air flow to critical components and design highly efficient heat sinks for hot spot cooling.
The team solved all thermal issues at an early stage of the design process when the required changes could be made easily and inexpensively.
“We believe that it’s critical to perform a careful thermal analysis at the beginning of every new design. We have successfully used FloTHERM software as our thermal simulation tool for many years.”
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