Don’t miss out on the June 2013 issue of Electronics Cooling, which includes feature articles on Thermal Spreading and More Using Open-Source FEA Software; Two-Phase Flow Control of On-Chip Two-Phase Cooling Systems Developed for Blade Servers of Data Centers, as well as a calculation corner and technical briefs. If you would like to receive your free copy of Electronics … [Read more...]
Why Not Just Shove a Heatsink on Top of it? Part 2: Heat Flow Budgets
Two different package styles, two very different thermal responses when a extruded plate fin heatsink is placed on each. At the very least a FloTHERM simulation can be used to observe the thermal behaviour of a product concept, beyond that it can be used to understand *why* the thermal behaviour is what it is. … [Read more...]
Why Not Just Shove a Heatsink on Top of it? Part 1
A common enough question. Heatsinks are often perceived to be the magic answer to all electronics cooling challenges. They should be called ‘area extenders’ as heat does not just disappear into them. Heat spreads throughout a heatsink passing to the air over a much larger area than it would otherwise do. Air can then do its magic, whisking the heat away thus keeping … [Read more...]
Experiment vs. Simulation, Part 5: Detailed IC Package Model Calibration Methodology
In the royal family of thermal IC package modelling types, a detailed model is King. All critical 3D geometry is modelled explicitly, no abstraction into a thermal resistor equivalent model, no hiding all the proprietary design information inside either. Pros and cons of detailed models I covered a few years ago in this blog. Packaged ICs are complex, constructed of many parts, … [Read more...]
Experiment vs. Simulation, Part 4: Compact Thermal Models
Electronics cooling simulation was born out of the world of CFD, rather fully conjugate heat transfer simulation where convective, radiative and conductive affects are considered concurrently. Back in the day much talk was had about turbulence modelling, convective discretisation schemes and linear equation solvers, all typical CFD subjects but somewhat out of place in the … [Read more...]
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