Rjc (or sometimes ThetaJC, θjc, Rth_jc), the so-called ‘junction to case’ thermal resistance, is a thermal metric that enables comparison of the thermal performance of packaged semiconductor devices from differing suppliers. The JEDEC standard JESD51-14 [1] documents a method for the experimental determination of Rjc. Although applicable for packages that exhibit a … [Read more...]
A Heatsink Remodeling Methodology
The role of a heatsink is to provide a conduction path from a heat source that is to be cooled to a volume of cooling fluid. The heatsink’s surface area that fills that volume is considerably larger than the surface area of the heat source. In this way, the heatsink acts as an ‘area extender’. For a given heat flow (Q) and convective heat transfer coefficient (h), any … [Read more...]
The Appification of CFD Simulation has Started
There has been much talk about the appification of established technologies. Discussion on the appification of high-value CAE simulation seems to have focused on the fact that it's a when, not if. How such a conclusion has been made without a clarification of what 'appification' actually is, is confounding. Apps are cheap, limited in the scope of their application and, as a … [Read more...]
Room Temperature Metal Bonding – Heralding a Revolution In IC Performance and Reliability?
A reliable electronic product is generally a cool one. In addition, one of the main limiters of non-functional performance is operating temperature. Keep your product cool and it will last longer and/or operate faster. Electronics thermal management has been dogged by thermal resistances at part/part interfaces for decades. Reduce these main bottlenecks in the heat flow path … [Read more...]
Automated Model Calibration in FloTHERM – A Future Cornerstone of Simulation Based Workflows, Today
Available in the recently released FloTHERM V11.1 is the ability to calibrate a FloTHERM simulation model so that it matches experimentally measured results. The calibration process is automatic and results in a model with unrivaled levels of predictive accuracy. The experimental results used are not simple thermocouple based measurements, but T3Ster based measurements that … [Read more...]
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