Science & Technology
Science and Technology
Science and Technology
Tue, June 8, 2010
Mon, June 7, 2010 Vishay Enhances ThermaSim Online MOSFET Thermal Simulation Tool to Offer Designers Increased Simulation Accuracy, Efficiency, a
MALVERN, PA--(Marketwire - June 7, 2010) - Vishay Intertechnology, Inc. (
Vishay's ThermaSim is a free tool that helps designers speed time to market by allowing detailed thermal simulations to be performed before prototyping. It is the first online MOSFET simulation that uses structurally detailed power MOSFET models created using finite element analysis (FEA) techniques to increase the simulation's accuracy.
Designers also may define other heat-dissipating components and simulate their effect on the MOSFET's thermal operation. Simulating these components ensures optimum device selection for application specifications and eliminates fallouts during thermal-performance line testing.
Applicable to any power MOSFET application, ThermaSim is especially useful in high-current, high-temperature applications such as automotive, fixed telecom, desktop and laptop computer, and industrial systems.
Vishay has enhanced ThermaSim through:
Improved simulation accuracy:
Component pads/footprints are separated from the component model
Higher internal/external meshing resolution
New features:
Users can now define and evaluate impact of solder thickness (from 100 % to 150 % of the nominal thickness of 0.1 mm)
Users can now define the thermal glue thickness between the component and a heat sink
Component model accounts for the air gap between the component and PCB surface where applicable
Additional materials for PCBs, heat sinks, and the thermally conducting insulators
Improved simulation efficiency:
Improved meshing methods
Smaller PDF file sizes
Improved user friendliness:
Features several completed examples that can be downloaded to user environment, modified, saved, and used
Offers user tips
Parametric range limits and prevents wrong inputs
Allows selection of steady-state, transient, or RC network simulations
Better selection/manipulation:
Same component in different location on PCB
Select/Edit internal PCB layers from side-view picture
Select/Edit via zones from top-view picture
Select/Edit solder thickness
Better documentation capabilities:
An expandable summary tree of the entire simulation is provided just before running the simulation
The filename and defined commenting text field are fed back on the simulation results
The enhanced version of ThermaSim is now available online for free at [ http://www.vishay.com/mosfets/thermasim ].
Vishay Intertechnology, Inc., a Fortune 1,000 Company listed on the NYSE (VSH), is one of the world's largest manufacturers of discrete semiconductors (diodes, rectifiers, MOSFETs, optoelectronics, and selected ICs) and passive electronic components (resistors, capacitors, inductors, sensors, and transducers). These components are used in virtually all types of electronic devices and equipment, in the industrial, computing, automotive, consumer, telecommunications, military, aerospace, and medical markets. Its product innovations, successful acquisition strategy, and "one-stop shop" service have made Vishay a global industry leader. Vishay can be found on the Internet at [ http://www.vishay.com ].
Link to ThermaSim thermal modeling application on Vishay web site:
[ http://www.vishay.com/mosfets/thermasim ]
Link to screen shot (click ALL SIZES for hi-res version):
[ http://www.flickr.com/photos/vishay/4679716777/ ]
